With about 92,697 residents, O'Fallon is a mid-sized Missouri community, and its median home value of $305,100 is above the Missouri median of $215,600. Homes here cost about 2.8× the median household income — relatively affordable by national standards. Prices sit in the range where FHA and 3%-down conventional loans are both common.
How much does it cost to buy a typical home in O'Fallon?
| Scenario | Down payment | Est. monthly payment | Income needed (28% / 36%) |
|---|---|---|---|
| FHA, 3.5% down | $10,679 | $2,519 | $108,000 / $84,000 |
| Conventional, 20% down | $61,020 | $2,008 | $87,000 / $67,000 |
Estimates use the Census median home value, a 30-year rate (see below), Missouri's 0.88% effective property tax rate, $1,589/yr insurance (NAIC state average) and FHA mortgage insurance.
Rate assumption: 7.18% (Freddie Mac PMMS 30-year fixed average, week of November 5, 2026). Change it in the payment calculator.
What are the 2026 loan limits for O'Fallon?
O'Fallon is in St. Charles County, where the single-family FHA limit is $541,287 (max price ≈ $560,000 with 3.5% down) and the conforming limit is $832,750. Loans above that are jumbo loans.
Is there down payment assistance in O'Fallon?
No applicable programs have been verified for this city yet. Check the state housing finance agency for current assistance.
What mortgage options do O'Fallon buyers have?
- Conventional Loan — Not government-backed; as little as 3% down for first-time buyers, PMI removable at 20% equity.
- FHA Loan — Government-insured; 3.5% down with a 580 credit score and flexible debt-to-income rules.
- VA Loan — For eligible veterans, service members and surviving spouses: 0% down and no monthly mortgage insurance.
- USDA Loan — 0% down for moderate-income buyers in eligible rural and suburban areas.
- Jumbo Loan — For loan amounts above the conforming limit; usually 10–20% down and 700+ credit.
- First-Time Home Buyer Loans — Low-down-payment loans plus state assistance programs designed for first-time buyers.
- Self-Employed Mortgage — Options for business owners and 1099 earners, including tax-return and bank-statement loans.
- DSCR Purchase Loan — Investment-property loans qualified on the rental income of the property, not personal income.
- New Construction Home Loans — Financing for a newly built home from a builder, or for building your own with a construction-to-permanent loan.
Home loan options in O'Fallon
- FHA loans in O'Fallon, MO
- First-time home buyer programs in O'Fallon, MO
- VA loans in O'Fallon, MO
- Conventional loans in O'Fallon, MO
- Home affordability in O'Fallon, MO
- New construction home loans in O'Fallon, MO
How much will I pay in property taxes in O'Fallon?
Homeowners in Missouri pay a median of $1,887 a year in property taxes — an effective rate of about 0.88% of the median home value, close to the national average (Census ACS). Actual rates vary by county and municipality. Ask your agent for the specific property's tax history.
Nearby cities (St. Charles County first)
O'Fallon home buying FAQs
Sources
- U.S. Census Bureau — ACS 2019–2023 5-Year Estimates
- FHFA — 2026 Conforming Loan Limit Values
- HUD — 2026 FHA Forward Mortgage Limits (county file)
- NAIC — Homeowners Insurance Report, Data for 2023 (HO-3 average premium)
Data last updated October 23, 2026.
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Get My MatchesFigures on this page are estimates for educational purposes only and are not a loan offer or commitment to lend. Rates, loan limits, fees and assistance programs change frequently and vary by lender, location and borrower profile. Confirm current terms with a licensed loan officer.