St. Johns: Housing & Real Estate
Homes in St. Johns carry a median value of $80,000 (estimated market value runs 12% higher at $89,710), with median rent $720 (1.1× higher than Perry County median $656; 1.7× below Illinois median $1,193). Homeownership rate: 58.7%. That's 1.3× below the Perry County median ($102,000); 3.1× below the Illinois median ($250,113). Market is warm. Vacancy rate 23.6%. New construction makes up 14.2% of stock. A municipal building code is in effect.
- 1.3× annual income — home value vs. household income (vs Illinois 2.9×).
- 9.3 years to break even renting at the median (vs Illinois 17y).
- 4-BR rent is 2.4× a studio — rent gradient by unit size.
- Median rent 21% below HUD 2-BR FMR — local market vs federal subsidy benchmark.
Home Values & Rent
Median home value $80,000 — 0.3× the Illinois median ($250,113). Median rent $720/month. homeownership rate 58.7% — below the U.S. share of ~65%.
| Affordability · Home Price To Income | 1.3× |
|---|---|
| Affordability · Home Affordability | affordable |
| Affordability · Rent Pct Income | 14.6% |
| Affordability · Rent Affordability | affordable |
| Affordability · Pct Severely Rent Burdened | 10.5% |
| Affordability · Poverty Rate | 14.4% |
| Affordability · Property Tax Pct Income | 1.7% |
| Fair Market Rent · Studio rent | $632 |
| Fair Market Rent · One-bedroom rent | $698 |
| Fair Market Rent · Two-bedroom rent | $916 |
| Fair Market Rent · Three-bedroom rent | $1,148 |
| Fair Market Rent · Four-bedroom rent | $1,537 |
| Fair Market Rent · HUD FMR area | Perry County, IL |
| Fair Market Rent · Fiscal year | FY2026 |
| Home Value Estimate | $89,710 |
| Median Home Value | $80,000 (vs Illinois $250,113) |
| Median Rent | $720 (vs Illinois $1,193) |
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 temperature | warm |
|---|---|
| Housing Market · Vacancy rate | 23.6% |
| Housing Market · New construction (% of stock) | 14.2% |
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)
| Broadband · % of premises with 25/3 Mbps broadband | 100.0% |
|---|---|
| Broadband · % of premises with 100/20 Mbps broadband | 100.0% |
| Broadband · % of premises with 250/25 Mbps broadband | 100.0% |
| Broadband · % of premises with 1 Gbps / 100 Mbps broadband | 89.0% |
| Broadband · Broadband-capable premises | 136 |
| Electricity · Electricity rate (¢/kWh) | 15.87¢/kWh |
| Electricity · Customers | 5,392,477 |
| Electricity · Revenue Millions | $7,118 |
| Electricity · Year | 2024 |
| Mobile Broadband · 3G mobile coverage | 0% |
| Mobile Broadband · 4G mobile coverage | 100% |
| Mobile Broadband · 5G mobile coverage | 100% |
| Mobile Home Parks Detail · County total | 1 |
Sources: FCC BDC Jun 2025 · EIA Annual Retail Sales 2023 · FCC BDC Mobile 2024 · HIFLD / IRS BMF · Refreshed 2026-04-12
Other
| Homeownership Rate | 58.7% |
|---|---|
| Median Year Built | 1977 |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12