St. Clair: Housing & Real Estate

St. Clair's median home value is $157,700 (estimated market value runs 13% higher at $177,583), with median rent $1,011 (1.2× higher than Franklin County median $831; 1.1× higher than Missouri median $956). Homeownership rate: 56.0%. That's 1.3× below the Franklin County median ($201,700); 1.3× below the Missouri median ($199,832). Market is warm. Vacancy rate 12.6%. New construction makes up 6.6% of stock. A municipal building code is in effect.

Home Values & Rent

Median home value $157,700 — 0.8× the Missouri median ($199,831). Median rent $1,011/month. homeownership rate 56.0% — below the U.S. share of ~65%.

Affordability · Home Price To Income3.8×
Affordability · Home Affordabilitymoderate
Affordability · Rent Pct Income25.1%
Affordability · Rent Affordabilitymoderate
Affordability · Pct Severely Rent Burdened39.4%
Affordability · Poverty Rate15.1%
Affordability · Property Tax Pct Income3.1%
Fair Market Rent · Studio rent$955
Fair Market Rent · One-bedroom rent$995
Fair Market Rent · Two-bedroom rent$1,218
Fair Market Rent · Three-bedroom rent$1,568
Fair Market Rent · Four-bedroom rent$1,812
Fair Market Rent · HUD FMR areaSt. Louis, MO-IL HUD Metro FMR Area
Fair Market Rent · Fiscal yearFY2026
Home Value Estimate$177,583
Median Home Value$157,700 (vs Missouri $199,832)
Median Rent$1,011 (vs Missouri $956)

Sources: HUD FMR FY2026 · Census ACS 5-Year 2023, B25077 · Census ACS 5-Year 2023  ·  Refreshed 2026-04-12

Tenure & Occupancy

Owner-occupied vs renter-occupied housing units, plus vacancy rates.

Housing Market · Market temperaturewarm
Housing Market · Vacancy rate12.6%
Housing Market · New construction (% of stock)6.6%
Housing Market · Price Appreciation 2Yr17.6%

Utilities

Electricity, water, and broadband infrastructure serving residents. Broadband percentages reflect the share of premises that can subscribe to service at the listed speed (FCC Form 477).

Systems (5)

Gerald Pws
MO6010303
Foxboro Subdivision
MO6036323
Union Pws
MO6010801
Argyle Estates Water Supply
MO6036126
Spring Meadows Mhp
MO6048249
Broadband · % of premises with 25/3 Mbps broadband100.0%
Broadband · % of premises with 100/20 Mbps broadband100.0%
Broadband · % of premises with 250/25 Mbps broadband100.0%
Broadband · % of premises with 1 Gbps / 100 Mbps broadband84.9%
Broadband · Broadband-capable premises2,276
Electricity · Electricity rate (¢/kWh)12.91¢/kWh
Electricity · Customers2,933,914
Electricity · Revenue Millions$4,548
Electricity · Year2024
Mobile Broadband · 3G mobile coverage0%
Mobile Broadband · 4G mobile coverage100%
Mobile Broadband · 5G mobile coverage100%
Mobile Home Parks Detail · County total2

Sources: FCC BDC Jun 2025 · EIA Annual Retail Sales 2023 · FCC BDC Mobile 2024 · HIFLD / IRS BMF  ·  Refreshed 2026-04-12

Other

Homeownership Rate56.0%
Median Year Built1974

Sources: Census ACS 5-Year 2023  ·  Refreshed 2026-04-12