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IL area data

Union, IL

Union, IL.

Population: 1,831 (Census ACS)

The median home value in Union, IL is $434,939 — up 7.6% over the past year. Homes sell for a median $424,750 after a median 43 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 coldwave, strongwind, tornado the top-rated hazards. Cost of living is 2.7% below the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$434,939

Median home value

+7.6%

1-year change

43

Median days on market

Relatively Moderate

Hazard risk (county)

Home values & appreciation

Median home value
$434,939
1-year appreciation
+7.6%
3-year appreciation
+18.8%
5-year appreciation
+42.5%
10-year appreciation
+96.6%
All-time peak (2026-07)
$434,939
House Price Index (state)
325.3 (+6.1% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price
$424,750
Median list price
$454,950
Median price per sqft
$197
1-year sale-price change
+31.9%
Median days on market
43 days
Homes sold (recent period)
6
For-sale inventory
6
Sale-to-list ratio
98.0%
Active listings
4
1-year forecast
+2.6%

Source: recent area sales and market data (ZIP-level)

Rents

Studio fair-market rent
$1,330/mo
1BR fair-market rent
$1,420/mo
2BR fair-market rent
$1,600/mo
3BR fair-market rent
$2,060/mo
4BR fair-market rent
$2,390/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (Average)
97.3 (100 = US avg)
Electricity rate (state-level)
17.7¢/kWh
Natural gas rate (state-level)
$11.30/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

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, 2022-23 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively Moderate
Top hazards (county)
coldWave, strongWind, tornado, hail, inlandFlooding
Notable hazard ratings (county)
coldWave: Relatively High · drought: Relatively Low · earthquake: Relatively Low · hail: Relatively Moderate · heatWave: Relatively Low · iceStorm: Relatively Low
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)
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA flood data (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
48.0°F
Average high
58.0°F
Average low
38.0°F
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)
49
Days with Good air quality
191
Days with Moderate air quality
153
Days with Unhealthy air quality
4
Highest AQI recorded (year)
230

Source: EPA air quality data (nearest monitoring station, annual)

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 nearby (~15 mi)
6
Hospitals include
ADVOCATE SHERMAN HOSPITAL, SAINT JOSEPH HOSPITAL-ELGIN, ELGIN MENTAL HEALTH CENTER
Avg hospital rating (CMS)
4.0 / 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 · DOE/NREL (proximity-based)

Migration

Net migration (county)
+54 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built
1,969
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
82,414
Average weekly wage
$1,024
Top industries (by employment)
Health Care, Accommodation & Food, Construction
Annual residential building permits (county)
858

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

UnionState medianUS median
Median home value$434,939$195,432$289,727
Median sale price$424,750$212,000$325,000
Median days on market43 days48 days51 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 median home value in Union, IL?
$434,939.
What is the median sale price in Union, IL?
$424,750.
How long do homes take to sell in Union, IL?
Median days on market: 43 days.
What is typical rent in Union, IL?
2-bedroom fair-market rent: $1,600/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: coldWave, strongWind, tornado, hail, inlandFlooding.
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, 2022-23).
Is Union, IL walkable?
Walkability index: 3.0/20 (EPA Smart Location Database).
What is the air quality in Union, IL?
Good. Median AQI: 49. (EPA AQI).
What is the cost of living in Union, IL?
Regional Price Parity: 97.3 (100 = US average) (Average) (BEA RPP, metro/state-level).

ZIP code for Union

Selling a home in Union, IL?

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Data last updated

Most recent source refresh: Sep 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents