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Williamsville, IL
Full City Profile · Illinois · Sangamon County County
3.8
/5.0
B+
Good
1,519
Population
980/sq mi density
$104,135
Median Income
$57,915 per capita
$187,000
Home Value
$244,339 Zillow
$1,055
Median Rent
19.3% income on rent
54°F
Avg Temperature
302 sunny days/yr
576
Violent Crime/100K
1,009 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$104,135 median income, 1.2% unemployment
A+
Affordability
5.0 / 5.0
$187,000 home value, $1,055/mo rent
F
Safety
1.0 / 5.0
576 violent crimes/100K (52% above avg)
A
Education
4.2 / 5.0
39.5% bachelor's degree or higher
Housing Overview
Median Home Value
$187,000
34% below
US avg: $281,900
Median Rent
$1,055/mo
9% below
US avg: $1,163/mo
Homeownership Rate
86.2%
32% above US avg (65.4%)
Total Housing Units
596
Median year built: 1975
Home Value by Source
Census Median
$187,000
Zillow (ZHVI)
$244,339
Median Sale Price
$240,000
Median List Price
$209,900
Census ACS, Zillow ZHVI, Redfin median sale price
Ownership vs. Renting
86.2%
Owner-Occupied
13.8%
Renter-Occupied
US avg: 65.4% owner-occupied
Fair Market Rents (HUD FY2026)
Studio
$774/mo
1 Bedroom
$854/mo
2 Bedroom
$1,063/mo
3 Bedroom
$1,370/mo
4 Bedroom
$1,561/mo
Census median rent:
$1,055/mo
Market Indicators (Redfin)
Median Days on Market
205 days
Sale-to-List Ratio
1.0%
Buyers market
Homes Sold
1
Price Drops
66.7%
of listings with price reduction
Price Per Sq Ft
$87
Active Inventory
3
homes for sale
Affordability & Housing Stock
Rent Burden
19.3%
of renters spending 30%+ of income on housing
38% below US avg (31.0%)
Median Year Built
1975
Average age of housing stock: 51 years
Homeownership Rate
86.2%
Complete Housing Data
Home Values
| Census Median Value | $187,000 |
| Zillow Home Value (ZHVI) | $244,339 |
| Median Sale Price | $240,000 |
| Median List Price | $209,900 |
| Price Per Sq Ft | $87 |
Rent
| Census Median Rent | $1,055 |
| FMR Studio | $774 |
| FMR 1-Bedroom | $854 |
| FMR 2-Bedroom | $1,063 |
| FMR 3-Bedroom | $1,370 |
| FMR 4-Bedroom | $1,561 |
Market
| Days on Market | 205 |
| Sale-to-List Ratio | 1.0% |
| Price Drops | 66.7% |
| Homes Sold | 1 |
| Active Inventory | 3 |
| Price Per Sq Ft | $87 |
Ownership & Stock
| Owner-Occupied | 86.2% |
| Renter-Occupied | 13.8% |
| Homeownership Rate | 86.2% |
| Total Housing Units | 596 |
| Median Year Built | 1975 |
| Rent Burden | 19.3% |