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IL area data

Big Rock, IL

Big Rock, IL.

Population: 2,081 (Census ACS)

The typical home value in Big Rock, IL is $420,294 — up 5.7% over the past year. Homes sell for a median $285,750 after a median 91 days on market. 1 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively High, with cold wave, inland flooding, lightning the top-rated hazards. Cost of living is at the US average (BEA, metro/state-level).

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

$420,294

Typical home value

+5.7%

1-year change

91

Median days on market

Relatively High

Hazard risk (county)

Home values & appreciation

Typical home value
$420,294
1-year appreciation
+5.7%
3-year appreciation
+16.4%
5-year appreciation
+33.6%
10-year appreciation
+74.0%
Peak value since 2000 (Aug 2026)
$420,294
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
$285,750
Median list price
$350,000
Median price per sqft
$172
1-year sale-price change
-24.8%
Median days on market
91 days
Homes sold (recent period)
2
Sale-to-list ratio
108.4%
Active listings
3
1-year forecast
+3.1%

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
1
High schools
0
Avg student-teacher ratio
10.1 : 1
Schools include
Hinckley-Big Rock Middle Sch

Source: NCES school directory, 2024-25 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively High
Top hazards (county)
cold wave, inland flooding, lightning, tornado, drought
Notable hazard ratings (county)
cold wave: Very High · tornado: Relatively High · lightning: Relatively High · inland flooding: Relatively High · drought: Relatively Moderate · heat wave: Relatively Moderate
Most common flood zone among NFIP claims
Zone A
NFIP flood claims on record
4
Wildfire risk to homes (county)
Higher than 10% of US counties
Buildings in wildfire direct-exposure zone
12.5%
Radon potential (county)
High radon potential — EPA Zone 1 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
Kerr-McGee (Residential Areas) (19.6 mi)
Flood zones vary by property. Look up a specific address on the FEMA Flood Map Service Center.
EPA recommends radon testing for every home regardless of zone.

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
50.0°F
Average high
60.0°F
Average low
39.0°F
Annual precipitation
40.6 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)
45
Days with Good air quality
226
Days with Moderate air quality
130
Days with Unhealthy air quality
1
Highest AQI recorded (year)
165

Source: EPA annual air quality index (county-level)

Walkability & transit

Walkability index
4.8 / 20
Transit service frequency
-99,999
Jobs reachable by car (30 min)
22,299
Jobs reachable by transit (45 min)
26,005

Source: EPA Smart Location Database (metropolitan block groups)

Amenities

National parks within ~60 mi
1
Nearest national park
Pullman National Historical Park (49 mi)
Airports within 30 mi
74
Nearest airport
J Maddock Airport (1 mi)
Nearest major airport
Dupage Airport (DPA) (19 mi)
Hospitals in or near this ZIP
43
Hospitals include
SAINT JOSEPH MEDICAL CENTER, LOYOLA GOTTLIEB MEMORIAL HOSPITAL, CARLE HEALTH PROCTOR HOSPITAL
Avg hospital rating (CMS)
3.7 / 5
Best hospital rating nearby (CMS)
5.0 / 5
EV charging stations (within 10 mi)
40
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)
-850 tax filers

Source: IRS SOI county-to-county migration (county-level; published with a multi-year lag)

Housing stock

Median year housing built
1962
Housing built before 1970
58.3%
Housing built 2000 or later
0.8%
Median annual property tax
$7,747
Mean commute to work
13 min
Households with broadband internet
85.4%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
181,324
Average weekly wage
$1,219
Top industries (by employment)
Health Care, Accommodation & Food, Administrative Services
Annual residential building permits (county)
1,629

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

How it compares

Big RockState medianUS median
Typical home value$420,294$194,869$288,527
Median sale price$285,750$212,000$325,000
Median days on market91 days48 days51 days
Median annual property tax$7,747$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 Big Rock, IL?
$420,294.
What is the median sale price in Big Rock, IL?
$285,750.
How long do homes take to sell in Big Rock, IL?
Median days on market: 91 days.
What is typical rent in Big Rock, 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 Big Rock, IL?
Overall risk: Relatively High (FEMA NRI, county-level). Top hazards: cold wave, inland flooding, lightning, tornado, drought.
Is Big Rock, IL in a flood zone?
Flood zones vary by property within Big Rock, IL. 4 FEMA flood-insurance (NFIP) claims are on record; the most common zone among them is A. Check a specific address on the FEMA Flood Map Service Center.
What is the wildfire risk in Big Rock, IL?
Risk to homes is higher than 10% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in Big Rock, IL?
High radon potential — EPA Zone 1 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near Big Rock, IL?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve Big Rock, IL?
1 schools (1 middle) (NCES, 2024-25).
Is Big Rock, IL walkable?
Walkability index: 4.8/20 (EPA Smart Location Database).
What is the air quality in Big Rock, IL?
Good. Median AQI: 45. (EPA AQI).
What is the cost of living in Big Rock, IL?
Regional Price Parity: 100.0 (100 = US average) (Above Average) (BEA RPP, metro/state-level).

ZIP code for Big Rock

Listing a home in Big Rock, IL?

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Data last updated

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

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