IL area data
Union, IL
Union, IL.
Population: 1,831 (Census ACS)
The typical home value in Union, IL is $431,869 — up 8.1% over the past year. Homes sell for a median $507,500 after a median 19 days on market. 1 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively Moderate, with cold wave, strong wind, tornado the top-rated hazards. Cost of living is at the US average (BEA, metro/state-level).
$431,869
Typical home value
+8.1%
1-year change
19
Median days on market
Relatively Moderate
Hazard risk (county)
Home values & appreciation
- Typical home value
- $431,869
- 1-year appreciation
- +8.1%
- 3-year appreciation
- +18.8%
- 5-year appreciation
- +41.7%
- 10-year appreciation
- +98.7%
- Peak value since 2000 (Aug 2026)
- $431,869
- House Price Index (state)
- 340.3 (+5.5% YoY)
Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)
Market activity
- Median sale price
- $507,500
- Median list price
- $475,000
- Median price per sqft
- $201
- 1-year sale-price change
- +75.0%
- Median days on market
- 19 days
- Homes sold (recent period)
- 4
- For-sale inventory
- 6
- Sale-to-list ratio
- 99.5%
- Active listings
- 1
- 1-year forecast
- +3.7%
Source: recent area sales and market data (ZIP-level)
Rents
- Studio fair-market rent
- $1,678/mo
- 1BR fair-market rent
- $1,780/mo
- 2BR fair-market rent
- $2,011/mo
- 3BR fair-market rent
- $2,586/mo
- 4BR fair-market rent
- $2,954/mo
Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)
Affordability
- Cost of living index (Above Average)
- 100.0 (100 = US avg)
- Electricity rate (state-level)
- 17.7¢/kWh
- Natural gas rate (state-level)
- $11.30/MCF
- 30-year mortgage rate (national)
- 7.40%
- 15-year mortgage rate (national)
- 6.73%
Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)
Schools
- Total schools
- 1
- Elementary schools
- 0
- Middle schools
- 0
- High schools
- 1
- Schools include
- Evergreen Academy
Source: NCES school directory, 2024-25 (school-address-based)
Natural hazards & flood risk
- Overall hazard risk (county)
- Relatively Moderate
- Top hazards (county)
- cold wave, strong wind, tornado, hail, inland flooding
- Notable hazard ratings (county)
- tornado: Relatively High · cold wave: Relatively High · strong wind: Relatively High · hail: Relatively Moderate · lightning: Relatively Moderate · winter weather: Relatively Moderate
- Wildfire risk to homes (county)
- Higher than 14% of US counties
- Buildings in wildfire direct-exposure zone
- 26.8%
- Radon potential (county)
- Moderate radon potential — EPA Zone 2 of 3
- EPA Superfund (NPL) sites within 5 mi
- None
- Nearest Superfund site
- Woodstock Municipal Landfill (6.3 mi)
Sources: FEMA National Risk Index (county-level) · FEMA NFIP flood-insurance claims (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL
Climate (30-year normals)
- Average annual temperature
- 49.0°F
- Average high
- 58.0°F
- Average low
- 39.0°F
- Annual precipitation
- 37.3 in
- Annual snowfall
- 33.1 in
- USDA plant hardiness zone
- 5b (extreme annual low -15 to -10°F)
Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)
Air quality
- Air quality rating
- Good
- Median AQI (annual)
- 42
- Days with Good air quality
- 247
- Days with Moderate air quality
- 105
- Days with Unhealthy air quality
- 1
- Highest AQI recorded (year)
- 165
Source: EPA annual air quality index (county-level)
Walkability & transit
- Walkability index
- 3.0 / 20
- Transit service frequency
- -99,999
- Jobs reachable by car (30 min)
- 43,002
- Jobs reachable by transit (45 min)
- 46,432
Source: EPA Smart Location Database (metropolitan block groups)
Amenities
- National parks within ~60 mi
- 1
- Nearest national park
- Pullman National Historical Park (60 mi)
- Airports within 30 mi
- 70
- Nearest airport
- Funny Farm Airport (1 mi)
- Nearest major airport
- Dupage Airport (DPA) (26 mi)
- Hospitals in or near this ZIP
- 49
- Hospitals include
- LOYOLA GOTTLIEB MEMORIAL HOSPITAL, COPLEY MEMORIAL HOSPITAL, ADVOCATE SHERMAN HOSPITAL
- Avg hospital rating (CMS)
- 3.7 / 5
- Best hospital rating nearby (CMS)
- 5.0 / 5
- Solar radiation rating
- Fair (3.9 kWh/m²/day)
Sources: National Park Service · FAA airport data · CMS hospital data (same ZIP, else within ~40 mi) · DOE/NREL (proximity-based)
Migration
- Net migration (county)
- +54 tax filers
Source: IRS SOI county-to-county migration (county-level; published with a multi-year lag)
Housing stock
- Median year housing built
- 1969
- Housing built before 1970
- 50.3%
- Housing built 2000 or later
- 28.2%
- Median annual property tax
- $7,952
- Mean commute to work
- 21 min
- Households with broadband internet
- 46.4%
Source: Census ACS 5-year estimates (ZIP-level)
Employment & development
- Total county employment
- 83,397
- Average weekly wage
- $1,091
- Top industries (by employment)
- Health Care, Accommodation & Food, Administrative Services
- Annual residential building permits (county)
- 1,393
Sources: BLS QCEW (county-level) · Census Building Permits (county-level)
How it compares
| Union | State median | US median | |
|---|---|---|---|
| Typical home value | $431,869 | $194,869 | $288,527 |
| Median sale price | $507,500 | $212,000 | $325,000 |
| Median days on market | 19 days | 48 days | 51 days |
| Median annual property tax | $7,952 | $2,696 | $2,006 |
State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.
Area data compiled from public government, academic, and industry research feeds. Data sources →
Common questions
- What is the typical home value in Union, IL?
- $431,869.
- What is the median sale price in Union, IL?
- $507,500.
- How long do homes take to sell in Union, IL?
- Median days on market: 19 days.
- What is typical rent in Union, IL?
- 2-bedroom fair-market rent: $2,011/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
- What is the natural-hazard risk in Union, IL?
- Overall risk: Relatively Moderate (FEMA NRI, county-level). Top hazards: cold wave, strong wind, tornado, hail, inland flooding.
- What is the wildfire risk in Union, IL?
- Risk to homes is higher than 14% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
- What is the radon potential in Union, IL?
- Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
- Are there Superfund sites near Union, IL?
- No current or proposed National Priorities List sites within 5 miles (EPA).
- How many schools serve Union, IL?
- 1 schools (1 high) (NCES, 2024-25).
- Is Union, IL walkable?
- Walkability index: 3.0/20 (EPA Smart Location Database).
- What is the air quality in Union, IL?
- Good. Median AQI: 42. (EPA AQI).
- What is the cost of living in Union, IL?
- Regional Price Parity: 100.0 (100 = US average) (Above Average) (BEA RPP, metro/state-level).
ZIP code for Union
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Data last updated
Most recent source refresh: Oct 2026. See all data sources →