The typical owner-occupied home in St. Clair County is worth about $157,100, 32% below the Missouri median of $230,300 and 53% below the national median of $332,700. Owners pay a median $966 a year in property taxes, about 0.61% of their home's value, lower than the Missouri rate of 0.85%. The median household earns $53,043 a year, so the median home costs 3.0 times the median income (3.3 times for Missouri). 76% of occupied homes here are lived in by their owners, and 44% of those owners still have a mortgage.
St. Clair County at a glance
| St. Clair County | Missouri | U.S. | |
|---|---|---|---|
| Median home value | $157,100 | $230,300 | $332,700 |
| Median property tax paid per year | $966 | $1,948 | $3,119 |
| Property tax as a share of value | 0.61% | 0.85% | 0.94% |
| Median household income | $53,043 | $70,702 | $80,734 |
| Homes lived in by their owners | 76% | 68% | 65% |
| Owner homes with a mortgage | 44% | 60% | 61% |
| Median monthly costs, owners with a mortgage | $1,190 | $1,524 | $1,963 |
| Those costs as a share of the owners' income | 19.7% | 19.0% | 21.0% |
| Median rent | $622 | $1,033 | $1,413 |
| Rent as a share of renters' income | 28.0% | 28.1% | 30.6% |
| Median year homes were built | 1979 | 1978 | 1980 |
| Vacant homes | 23.0% | 11.2% | 10.1% |
| Population | 9,587 | 6,191,814 | 334,922,499 |
What a typical home costs per month in St. Clair County
At this week's average 30-year rate of 7.11%, buying the median St. Clair County home of $157,100 with 20% down costs about $991 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $1,252, because the loan is bigger and FHA adds mortgage insurance.
Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $42,462 for the 20%-down payment. That payment is 22% of the median St. Clair County household income of $53,043; at that income and 20% down, the 28% guideline points to a home of about $196,000.
The median rent here is $622 a month, so owning the median home costs about $369 a month more than renting, before you count the equity you build and any tax benefits.
| Down payment | $31,420 |
|---|---|
| Loan amount | $125,680 |
| Principal and interest | $845 |
| Property taxes (0.61% a year) | $80 |
| Homeowners insurance (our estimate, 0.5% a year) | $65 |
| PMI | $0 |
| Total per month | $991 |
Change the numbers in the calculator
| Down payment | $5,498 |
|---|---|
| Loan amount | $154,255 |
| Principal and interest | $1,038 |
| Property taxes (0.61% a year) | $80 |
| Homeowners insurance (our estimate, 0.5% a year) | $65 |
| FHA mortgage insurance | $69 |
| Total per month | $1,252 |
Change the numbers in the calculator
Questions about home buying in St. Clair County
What is the median home value in St. Clair County?
About $157,100 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.
How much are property taxes in St. Clair County?
Homeowners pay a median $966 a year, which is about 0.61% of the median home value. Your bill depends on your home's assessed value and local rates.
What income do you need to buy a home in St. Clair County?
For the median home with 20% down at 7.11%, the payment is about $991 a month. Keeping that under 28% of gross income takes about $42,462 a year.
More about St. Clair County
- Mortgage Refinance in St. Clair County
- Debt Relief in St. Clair County
- Home Equity Loans in St. Clair County
- Guides and quotes for mortgage refinance on our sister site, MortgageRefinance.com
Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data