- Port St. Lucie
- Port St. Lucie mortgage calculator
Port St. Lucie mortgage calculator
What a Port St. Lucie mortgage costs each month, how long it runs, what it costs in total, and how much sooner it ends if you pay a little more. Built on monthly compounding and the 30-year fixed loan, and it charges you private mortgage insurance for exactly as long as the law lets a lender charge it, which is the line most calculators leave out.
Calculator
The purchase
20.0% down. The minimum on this price is $12,075. At 20% or more there is no mortgage insurance.
A US lender qualifies you on debt-to-income rather than at a stress-test rate, so this payment is the payment. What varies is the rate you are quoted: credit score, points paid at closing and the lender itself move it by more than half a point.
The contract length, not the amortization. At the end of it you renew at whatever rates are then available.
Paying it down faster
Most lenders cap annual prepayments at 10–20% of the original principal, and charge a penalty above it. Check your own commitment before planning around a large lump sum.
Where the money goes, year by year
Early payments are almost all interest. The crossover (the year principal finally exceeds interest) is the real shape of an amortized loan, and it is much later than most people expect.
Show the first two years of the schedule
| Payment | Amount | Interest | Principal |
|---|---|---|---|
| 1 | $2,148.77 | $1,886.38 | $262.39 |
| 2 | $2,148.77 | $1,884.85 | $263.92 |
| 3 | $2,148.77 | $1,883.30 | $265.47 |
| 4 | $2,148.77 | $1,881.74 | $267.03 |
| 5 | $2,148.77 | $1,880.18 | $268.59 |
| 6 | $2,148.77 | $1,878.61 | $270.16 |
| 7 | $2,148.77 | $1,877.02 | $271.75 |
| 8 | $2,148.77 | $1,875.43 | $273.34 |
| 9 | $2,148.77 | $1,873.83 | $274.94 |
| 10 | $2,148.77 | $1,872.22 | $276.55 |
| 11 | $2,148.77 | $1,870.60 | $278.17 |
| 12 | $2,148.77 | $1,868.97 | $279.80 |
| 13 | $2,148.77 | $1,867.33 | $281.44 |
| 14 | $2,148.77 | $1,865.68 | $283.09 |
| 15 | $2,148.77 | $1,864.02 | $284.75 |
| 16 | $2,148.77 | $1,862.36 | $286.41 |
| 17 | $2,148.77 | $1,860.68 | $288.09 |
| 18 | $2,148.77 | $1,858.99 | $289.78 |
| 19 | $2,148.77 | $1,857.29 | $291.48 |
| 20 | $2,148.77 | $1,855.59 | $293.18 |
| 21 | $2,148.77 | $1,853.87 | $294.90 |
| 22 | $2,148.77 | $1,852.14 | $296.63 |
| 23 | $2,148.77 | $1,850.40 | $298.37 |
| 24 | $2,148.77 | $1,848.65 | $300.12 |
Derived from the figures above, not a lender's statement. A real schedule also depends on your closing date and the lender's rounding.
An estimate from published figures, not a lender quote.
Florida taxes the loan, not just the house
This is the part that surprises buyers from Texas and most other states. Florida charges a documentary stamp tax on the promissory note at 35 cents per $100 and a non-recurring intangible tax on the mortgage itself at 2 mills: together 0.55% of the amount you borrow, payable at closing. On the $402,500 St. Lucie County median with 20% down that is a $322,000 loan and about $1,771 in tax on the borrowing alone; at 5% down it is $2,103. Put less down and it gets larger, which inverts the usual advice: here a smaller down payment costs you more at the table as well as more every month.
The other stamp, 70 cents per $100 on the deed, is the seller's by convention, at the standard Florida rate: St. Lucie is not Miami-Dade, the one county that charges differently. It matters to you when you come to sell rather than when you buy.
PMI is the number to watch, not the rate
If you put down less than 20% on a conventional loan the lender adds private mortgage insurance to the payment. It insures the lender, not you, and on the $402,500 St. Lucie County single-family median it works out like this. At 5% down (a $382,375 loan) a representative rate is about 0.67% of the loan a year, or $213 a month. Federal law makes the lender terminate it automatically when the scheduled balance first reaches 78% of the purchase price, which on a 30-year loan at 7.03% happens in month 142. That is 11.8 years and about $30,300 of payments that buy you no equity at all. At 3% down it is $283 a month and roughly $42,700.
Two things shorten it. You can ask the lender to cancel at 80% rather than wait for 78%, which is a right under the Homeowners Protection Act if you are current on the loan, and paying extra principal gets you there faster, because the trigger is the balance on the schedule rather than what the house is worth. The calculator above moves the termination month when you add an extra payment. The buyer programs matter here too: Florida Housing's Hometown Heroes, up to 5% of the loan for eligible workers, and the City's Homebuyer Assistance Program when a round is open, both go toward the down payment, and a larger down payment is the one thing that removes the insurance altogether. Hometown Heroes is a second mortgage repaid when you sell or refinance.
The rate you are quoted is a personal number
This is the biggest difference from the Canadian pages on this site. There, CMHC publishes one premium schedule for the whole country and a lender either applies it or does not. Here the mortgage insurer prices you individually, mostly on credit score, and the same 5%-down loan can be quoted anywhere from about 0.4% to 1.3%. The bands used above are mid-market for a borrower around a 740 score. The loan rate itself moves too: Freddie Mac's survey had the 30-year fixed at 7.03% on 24 September 2026, against 6.30% a year earlier. Get a real quote before treating any of these totals as yours.
Monthly compounding, and why the Canadian number would be wrong
An American fixed-rate mortgage compounds monthly: the periodic rate is simply the annual rate divided by twelve. Canadian mortgages compound twice a year, which makes the same nominal rate slightly cheaper. On a $322,000 loan at 7.03% over 30 years the American payment is $2,148.77 and the Canadian convention would give $2,126.98: $22 a month, or about $7,800 over the life of the loan. This site runs both, and no page borrows the other country's arithmetic.
A biweekly plan is thirteen payments, not clever compounding
Paying half the monthly payment every two weeks means twenty-six half-payments a year, which is thirteen monthly payments' worth of money instead of twelve. On the benchmark loan with 20% down that takes a 30-year mortgage to about 24 years and saves roughly $113,600 in interest. There is nothing magic in it (it is simply paying about 8% more every year) and you can get the identical result by adding a twelfth of the payment to each monthly one, without a servicer's enrollment fee.
What this cannot tell you
The payment above is principal and interest, plus PMI where it applies. Your actual monthly bill will include property tax and homeowners insurance, which the lender will usually escrow: on a $402,500 house that is about $668 a month in tax at the 1.99% homesteaded rate and roughly $450 in insurance, so about $3,267 all in at 20% down. The City's solid waste and stormwater assessments, about $54.69 a month, come on the same tax bill and into the same escrow. That rate assumes you have filed for the homestead exemption, which is not automatic, and it is worked out for an address inside the City of Port St. Lucie: Fort Pierce and the unincorporated county levy different rates, and a Port St. Lucie mailing address is not proof of which one you are in.
Three Port St. Lucie things it cannot tell you at all. Flood insurance is a separate policy from the homeowners figure and is in no number on this page; from 2027 every Citizens homeowners policy with wind cover has to carry flood as well. A community development district's or the City's special assessment, which in the newer west can run to well over a thousand dollars a year and arrives on the tax bill as lines of its own; and on an older lot still on a well and septic tank, the City's conversion to water and sewer costs $18,821, or $150.72 a month for ten years, under a recorded agreement a new lender has to deal with at closing. And the fact that a homesteaded assessment resets to what you paid on the roll after you buy, so the seller's tax bill is no guide to yours. For the full comparison against renting, use the rent versus buy calculator.
Sources
- St. Lucie County median home prices rise (August 2026 market report) · MIAMI REALTORS + RWorld · retrieved Supports: A median price of single-family homes in St. Lucie County of $402,500 in August 2026, against $400,000 in August 2025, up 0.63%, Single-family sales of 444 in August 2026 against 475 a year earlier, and a condominium median of $320,000 against $298,450 on 80 sales, Single-family active listings of 2,270 against 2,351 a year earlier, and 4.9 months' supply of single-family homes, Statistics released by MIAMI REALTORS + RWorld, the MIAMI MLS and BeachesMLS, by county, with no City of Port St. Lucie figure
- Annual estimates of the resident population for incorporated places and counties, 2020 to 2025 · United States Census Bureau, Population Estimates Program · retrieved Supports: A population of 268,062 for Port St. Lucie city on 1 July 2025, against 258,931 a year earlier and an April 2020 estimates base of 204,826, all of it in St. Lucie County, A population of 402,449 for St. Lucie County and 51,737 for Fort Pierce city on 1 July 2025, Port St. Lucie's growth of 3.5% in 2024-25 and 30.9% since the 2020 base, the fastest of any US city of 250,000 or more on either measure
- 2025 Gazetteer files: places, Florida · United States Census Bureau · retrieved Supports: A land area of 119.216 square miles and a water area of 1.609 square miles for Port St. Lucie city
- Taxing authority rates and hearing information · St. Lucie County Property Appraiser · retrieved Supports: 2025 final millage of 4.6607 for the City of Port St. Lucie and 0.3143 for Port St. Lucie voted debt, against 2026 proposed rates of 4.6107 and 0.2643, 2025 final millage of 4.1985 for the county general fund (2026 proposed 4.0441), 2.7294 for fine and forfeiture (jail), 0.2500 for the county transit MSTU, 0.1352 for mosquito control and 0.1000 for Erosion District E, 2025 final school millage of 3.0480 by state law (2026 proposed 2.9970), 1.5000 capital outlay, 0.7480 discretionary and 1.0000 voter referendum, 2025 final millage of 3.0000 for the Fire District, 0.3685 for the Children's Services Council, 0.0948 for the SFWMD, 0.1026 for the SFWMD Okeechobee basin, 0.0327 for the Everglades Construction Project and 0.0270 for FIND, The law enforcement MSTU at 0.8403, community development MSTU at 0.5000, county stormwater management at 0.4731 and South Hutchinson Island erosion control at 0.5200, City of Fort Pierce at 6.9000 and the Village of St. Lucie at 2.0000
- Taxes · Economic Development Council of St. Lucie County · retrieved Supports: Total millage of 22.3097 for the City of Port St. Lucie, 24.2347 for the City of Fort Pierce and 19.1481 for the unincorporated county, from the St. Lucie County Property Appraiser's 2025 rates, For Port St. Lucie: county general fund 4.1985, law enforcement and jail 2.7294, erosion and stormwater 0.1000, parks and public transit 0.2500, school system and Children's Services Council 6.6645, fire district 3.0000, water management and mosquito control 0.3653, Florida Inland Navigation 0.0270 and municipality-specific 4.975, Totals excluding special district charges and other non-ad valorem assessments
- Port St. Lucie property taxes rising despite lower millage rate as taxable property values more than double · WFLX · retrieved Supports: The City lowering its millage rate for the tenth consecutive year, to a proposed 4.97 mills for fiscal 2026, Taxable value in Port St. Lucie of $11,795,767,510 in 2020 and $25,657,621,359 in 2025, according to the property appraiser
- Additional homestead exemption adjustment, revised January 2025 · Florida Department of Revenue · retrieved Supports: Section 196.031(1)(b), Florida Statutes, requiring the additional homestead exemption to be adjusted annually by the Consumer Price Index from the 2025 tax year, A CPI change of 2.9% and a maximum additional exemption of $25,722 for 2025, against the $25,000 base year of 2024
- Property tax information for homestead exemption, PT-113, R. 08/25 · Florida Department of Revenue · retrieved Supports: A $25,000 exemption against all taxes and an additional exemption of up to $25,000, adjusted annually for inflation, on assessed value over $50,000 for non-school taxes only, Applications on Form DR-501 to the county property appraiser by 1 March
- Learn about exemptions · St. Lucie County Property Appraiser · retrieved Supports: A homestead exemption that reduces the taxable value of a property by up to $51,411, A filing deadline of 1 March of the tax year for which the owner is applying
- Homestead portability · St. Lucie County Property Appraiser · retrieved Supports: The transfer of some or all of the Save Our Homes benefit on a previous homestead to a new one, to a maximum of $500,000, A new homestead established on or before 1 January within three tax years of abandoning the previous one, with applications filed by 1 March
- SLC School Board sends property tax renewal referendum to commissioners for approval · WQCS · retrieved Supports: The St. Lucie County School Board placing on the 8 November 2022 ballot the continuation of its 1-mill operating levy for another four years, The mill generating about $25 million a year for the school system
- Stormwater · City of Port St. Lucie, Public Works · retrieved Supports: An annual stormwater assessment of $189, a $6 increase from the previous assessment of $183, billed on the property tax bill, A cap of $219, above which any further increase must be approved by the City Council at a public hearing, Five projects funded by the increase, among them the Oak Hammock watershed, the Elkcam basin and the E-8 canal, and accelerated swale and culvert replacement
- Port St. Lucie approves solid waste rate increase starting in October · WQCS · retrieved Supports: A solid waste assessment of $467.33 a year, $38.94 a month, from October 2025, an increase of $20.89, 168 curbside stops a year: 52 garbage, 52 recycling, 52 yard waste and 12 bulk
- Port St. Lucie approves increase in annual trash assessment · WQCS · retrieved Supports: An annual solid waste assessment of $482.16 a dwelling unit for the fiscal year beginning 1 October 2026, an increase of $14.83, on the tax bill, Property tax credits of up to $364 on the 2026 bill, from the City's $24 million Waste Pro settlement, for residential owners who owned in 2022 and still live in the house
- Special assessment districts: summary information · City of Port St. Lucie, Finance · retrieved Supports: Sixteen City special assessment districts for water, sewer, roads and stormwater, from SAD 1 Phase 1 (1994 to 2013) to Southwest Annex District PSS1-2 (2010 to 2044), Billing complete or debt paid on the early water and sewer districts; City Center running to 2034, and St. Lucie Land Holdings and Peacock to 2026
- Resolution 24-R67: Southwest Annexation Special Assessment District No. 1, revised and updated assessment roll · City of Port St. Lucie, City Council (Legistar file 2024-874) · retrieved Supports: Special assessments for stormwater, roadway, water and wastewater improvements in the district, also known as Southern Grove, established by Resolution 10-R64 over thirty years and extended five years by Ordinance 16-41, An annual assessment for fiscal 2024-25 of $7,181,980.75 on 2,415 benefitted properties, collected through the non-ad valorem portion of the November 2024 tax bill, A final debt service payment due in fiscal 2044-45
- Community development districts · City of Port St. Lucie, GIS (ArcGIS feature service) · retrieved Supports: Forty-two mapped district polygons with forty-one distinct names across the city, Among them Tradition #1 to #10, Southern Grove #1 to #6, Verano #1 to #5 and Verano Center, Veranda #1 and #2, St Lucie West, Reserve #1, Tesoro, River Place and Portofino Isles
- Tradition Community Development Districts 1 to 11: regular board meeting and public hearing book, 2 September 2026, fiscal 2027 final budget · Tradition Community Development Districts · retrieved Supports: Fiscal 2027 operations and maintenance assessments per single-family unit of $560.85 in CDDs 1 and 2, $439.51 in CDDs 3 to 6 and $967.80 in CDDs 7 to 11, against $562.50, $455.16 and $969.46 for fiscal 2026, Series 2014 bonds of $53,170,000 maturing May 2035, assessed at $715.89 per single-family unit grossed up per the methodology, Series 2021 bonds maturing May 2052 and Series 2025 bonds maturing May 2056
- Section 190.021, Florida Statutes: taxes; non-ad valorem assessments · The Florida Legislature · retrieved Supports: A community development district's benefit special assessments for bonds, levied annually, a lien on the property enforceable in like manner as county taxes
- Section 190.048, Florida Statutes: sale of real estate within a district; required disclosure to purchaser · The Florida Legislature · retrieved Supports: A boldfaced disclosure, in each contract for the initial sale of a parcel or residential unit in a district, that the district may impose taxes or assessments in addition to county and other local taxes
- Utility customer service guide: residential rates effective 1 October 2025 (Ordinance 25-51) · City of Port St. Lucie, Utility Systems Department · retrieved Supports: An average residential water and wastewater bill of $96.31 a month for two people using 5,000 gallons, and $126.47 for three using 7,000, Conversion from a well and septic tank to City water and low-pressure sewer outside the SAD and USA areas at $18,821 paid in full, or 120 interest-free monthly payments of $150.72, Grants for income-qualified households toward the cost of connecting to City sewer, and a recorded capital charge installment payment agreement for the financing
- Zillow Home Value Index, all homes, middle tier, smoothed and seasonally adjusted, by city · Zillow Research · retrieved Supports: A typical home value of $384,593 for the city of Port St. Lucie (region 33501, St. Lucie County) in August 2026, against $389,480 in August 2025, down 1.25%
- Zillow Home Value Index, single-family and condominium series, by city · Zillow Research · retrieved Supports: A typical single-family value of $390,325 in the city of Port St. Lucie in August 2026, against $395,301 a year earlier, down 1.26%, A typical condominium value of $188,371 in the same month, against $200,740, down 6.16%, from the condominium file at https://files.zillowstatic.com/research/public_csvs/zhvi/City_zhvi_uc_condo_tier_0.33_0.67_sm_sa_month.csv
- Zillow Observed Rent Index, all homes plus multifamily, smoothed, by city · Zillow Research · retrieved Supports: An observed rent index of $2,396 for the city of Port St. Lucie in August 2026, against $2,353 a year earlier, up 1.86%
- Zillow Observed Rent Index, single-family homes, smoothed, by metro · Zillow Research · retrieved Supports: A single-family observed rent index of $2,681 for the Port St. Lucie metro area (region 394995) in August 2026, against $2,608 a year earlier
- Rent estimates summary, September 2026 · Apartment List · retrieved Supports: For St. Lucie County, September 2026: $1,393 overall, $1,097 for one bedroom and $1,271 for two, with rents up 0.36% on the month and down 0.10% on the year, For the Port St. Lucie metro area: $1,396 overall, $1,102 and $1,322, down 0.22% on the year, No row for the City of Port St. Lucie among the file's cities
- Apartments for rent in Port St. Lucie, FL: average rent · Apartment List · retrieved Supports: Average listed rents of $1,635 and up for a studio, $1,772 and up for one bedroom, $2,145 and up for two, and $2,505 and up for three or more
- Median household income, median home value, median gross rent and tenure, tables B19013, B25077, B25064 and B25003, 2024 American Community Survey 1-year estimates · United States Census Bureau, via the Census Reporter API · retrieved Supports: A median household income of $86,241 in Port St. Lucie city, against $73,811 in St. Lucie County and $77,735 for Florida, A median owner-occupied home value of $420,600 in Port St. Lucie city, against $396,900 for Florida, 77,663 of Port St. Lucie's 94,324 occupied homes owner-occupied, and a median gross rent of $2,133 against $1,812 for Florida
- Median gross rent by bedrooms, table B25031, 2024 American Community Survey 1-year estimates, Port St. Lucie city · United States Census Bureau, via the Census Reporter API · retrieved Supports: A median gross rent of $1,637 for one bedroom, $1,872 for two, $2,247 for three and $2,645 for four
- Monthly homeowners' association and condominium fee, tables B25142 and B25143, 2024 American Community Survey 1-year estimates, Port St. Lucie city · United States Census Bureau, via the Census Reporter API · retrieved Supports: 19,945 of 77,663 owner-occupied units, or 26%, paying a homeowners' association or condominium fee, A median monthly fee of $346 among them, and 3,570 paying $500 or more a month
- Primary Mortgage Market Survey, 24 September 2026 · Freddie Mac · retrieved Supports: A 30-year fixed-rate mortgage averaging 7.03%, up from 6.95% the week before and 6.30% a year earlier
- Documentary stamp tax · Florida Department of Revenue · retrieved Supports: 70 cents on each $100 of consideration on a deed in every county except Miami-Dade, 35 cents per $100 on a promissory note, capped at $2,450, All parties to a document liable for the tax regardless of which party agrees to pay it
- Rule 69O-186.003, Florida Administrative Code: title insurance rates · Florida Department of State, Florida Administrative Code · retrieved Supports: An owner's title insurance premium of $5.75 per $1,000 of liability to $100,000 and $5.00 per $1,000 from $100,000 to $1 million
- Florida homeowners insurance · NerdWallet · retrieved Supports: An average Port St. Lucie premium of $4,630 a year, $386 a month, against $3,765 in Orlando, $4,160 in West Palm Beach and $8,345 in Miami, A Florida average of $3,390 a year, on a sample policy with $500,000 of dwelling cover and $300,000 of liability, updated 20 February 2026
- Homeowners insurance in Port St. Lucie, FL · insurance.com · retrieved Supports: An average Port St. Lucie premium of $7,901 a year for $300,000 of dwelling cover, $100,000 of liability and a $1,000 deductible, last updated 24 March 2026, The cheapest insurer in Port St. Lucie at an average of $3,194
- Best home insurance in Florida (2026) · Insurify · retrieved Supports: An estimated average annual premium of $13,752 in Port Saint Lucie for $300,000 of dwelling cover, against $4,032 in Jacksonville and $15,396 in Miami, updated 27 September 2026
- Renters insurance in Florida · NerdWallet · retrieved Supports: An average Port St. Lucie renters premium of $147 a year, $12 a month
- Section 627.701, Florida Statutes: liability of insureds; hurricane deductibles · The Florida Legislature · retrieved Supports: An insurer offering hurricane deductibles of $500, 2%, 5% and 10% of the policy dwelling limits, with the $500 option not required at $250,000 of dwelling limits or more
- Flood: Citizens' flood insurance requirements · Citizens Property Insurance Corporation · retrieved Supports: Under section 627.715, Florida Statutes, most new and renewing Citizens personal residential policies with wind coverage required to carry flood insurance by 1 January 2027, Homes in a FEMA special flood hazard area required already; outside it, dwelling values of $600,000 or more from 2024, $500,000 from 2025, $400,000 from 2026 and all policies from 2027, Condominium unit-owner, tenant and wind-excluded policies exempt
- FloodSmart · Federal Emergency Management Agency, National Flood Insurance Program · retrieved Supports: Most homeowners insurance not covering flood damage, Almost one-third of National Flood Insurance Program claims, 29%, coming from outside high-risk flood areas
- Tropical cyclone report: Hurricane Frances, 25 August to 8 September 2004 · National Hurricane Center · retrieved Supports: Landfall over the southern end of Hutchinson Island near 0430 UTC on 5 September 2004 as a Category 2 hurricane, The highest measured storm surge, 5.89 feet above mean sea level, on the Florida east coast at the St. Lucie Lock
- Tropical cyclone report: Hurricane Jeanne, 13 to 28 September 2004 · National Hurricane Center · retrieved Supports: Landfall with the center of its eye crossing the coast at the southern end of Hutchinson Island just east of Stuart at 0400 UTC on 26 September 2004, The highest wind gust reported from Florida, 111 knots, at Fort Pierce Inlet
- SB 4-D (2022): Building Safety, chapter 2022-269, Laws of Florida · The Florida Senate · retrieved Supports: Milestone inspections required of condominium and cooperative associations, and a prohibition on waiving or reducing reserves for certain items after a specified date
- Housing programs · City of Port St. Lucie, Neighborhood Services · retrieved Supports: A Homebuyer Assistance Program, funded with what remains of the federal Neighborhood Stabilization Program, and the State Housing Initiatives Partnership program listed as current programs, Contact by email to Housing@cityofpsl.com or by telephone at 772-344-4084
- Program offering up to $100K in assistance for first-time homebuyers in Port St. Lucie · WPTV · retrieved Supports: The City's revamped Homebuyer Assistance Program with the Community Land Trust of Palm Beach County and the Treasure Coast, May 2024, offering up to $100,000 in federal funds to four to six first-time buyers by lottery, Buyers living or working in the city, with household income of at least $70,000 and no more than 120% of the area median, a 620 credit score and a 1% contribution
- Florida Hometown Heroes Housing Program · Florida Housing Finance Corporation · retrieved Supports: Down payment and closing cost assistance for first-time, income-qualified buyers in eligible occupations: health care, school staff, first responders, public safety and court employees, child care workers, service members and veterans employed full time by a Florida-based employer, Up to 5% of the first mortgage, a maximum of $35,000 and a minimum of $10,000, as a 0%, non-amortizing, 30-year deferred second mortgage that is not forgivable, An HTH 2026 program
These are estimates built from published figures, not a lender quote, a pre-approval or financial advice. Rates, premiums and state and federal rules change; confirm anything you plan to act on with a mortgage professional and read the sourcing methodology.