All Countries
Union, IL
Full City Profile · Illinois · McHenry County County
4.1
/5.0
A
Great
753
Population
896/sq mi density
$100,104
Median Income
$44,115 per capita
$224,600
Home Value
$413,839 Zillow
48°F
Avg Temperature
260 sunny days/yr
A
Overall
4.1 / 5.0
Strong
A+
Economy
4.9 / 5.0
$100,104 median income, 2.6% unemployment
A+
Affordability
5.0 / 5.0
$224,600 home value, /mo rent
C
Education
2.3 / 5.0
15.7% bachelor's degree or higher
Housing Overview
Median Home Value
$224,600
20% below
US avg: $281,900
Homeownership Rate
89.6%
37% above US avg (65.4%)
Total Housing Units
245
Median year built: 1960
Home Value by Source
Census Median
$224,600
Zillow (ZHVI)
$413,839
Median Sale Price
$420,000
Median List Price
$290,000
Census ACS, Zillow ZHVI, Redfin median sale price
Ownership vs. Renting
89.6%
Owner-Occupied
10.4%
Renter-Occupied
US avg: 65.4% owner-occupied
Fair Market Rents (HUD FY2026)
Studio
$640/mo
1 Bedroom
$698/mo
2 Bedroom
$916/mo
3 Bedroom
$1,129/mo
4 Bedroom
$1,261/mo
Market Indicators (Redfin)
Median Days on Market
96 days
Sale-to-List Ratio
1.0%
Buyers market
Homes Sold
1
Price Drops
0.0%
of listings with price reduction
Price Per Sq Ft
$243
Active Inventory
2
homes for sale
Affordability & Housing Stock
Rent Burden
30.3%
of renters spending 30%+ of income on housing
2% below US avg (31.0%)
Median Year Built
1960
Average age of housing stock: 66 years
Homeownership Rate
89.6%
Complete Housing Data
Home Values
| Census Median Value | $224,600 |
| Zillow Home Value (ZHVI) | $413,839 |
| Median Sale Price | $420,000 |
| Median List Price | $290,000 |
| Price Per Sq Ft | $243 |
Rent
| FMR Studio | $640 |
| FMR 1-Bedroom | $698 |
| FMR 2-Bedroom | $916 |
| FMR 3-Bedroom | $1,129 |
| FMR 4-Bedroom | $1,261 |
Market
| Days on Market | 96 |
| Sale-to-List Ratio | 1.0% |
| Price Drops | 0.0% |
| Homes Sold | 1 |
| Active Inventory | 2 |
| Price Per Sq Ft | $243 |
Ownership & Stock
| Owner-Occupied | 89.6% |
| Renter-Occupied | 10.4% |
| Homeownership Rate | 89.6% |
| Total Housing Units | 245 |
| Median Year Built | 1960 |
| Rent Burden | 30.3% |