Each edition grades its towns against each other only.
A town of 322, settled in 1851.
7.2% of adults 25 and older hold a bachelor’s degree or more in Flat Rock, below both the Illinois town median (29%) and the median of U.S. towns (29%). Flat Rock has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 140 in 1880, a peak of 840 in 1910, 323 in 2020. The archive holds 3 old photos and papers going back to 2020 and 3 maps from 1917 on.
Who provides power, water and the rest in Flat Rock, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
Ordered by what stands out in Flat Rock.
Most working residents leave Flat Rock for work: only 0% work in town. Flat Rock’s median household income is $52,000, against $83,000 in Illinois’ towns and $80,000 across U.S. towns. 12% of residents live below the poverty line in Flat Rock.
| Flat Rock | Illinois towns | U.S. towns | |
|---|---|---|---|
| Median household income | $52,000 | $83,000 | $80,000 |
| Below the poverty line | 12% | 8.4% | 9.6% |
Census LEHD 2023 · ACS
Flat Rock has chilly winters and warm summers. The July high in Flat Rock is 87°F.
NOAA U.S. Climate Normals, 1991–2020
Flat Rock beats the Illinois average on 2 of 32 CDC measures and trails it on 9. 40% of Flat Rock adults have high blood pressure.
| Flat Rock | Illinois towns | U.S. towns | |
|---|---|---|---|
| High blood pressure (CDC PLACES) | 40% | 35% | 35% |
| Frequent physical distress (CDC PLACES) | 15% | 13% | 14% |
| Obesity (CDC PLACES) | 40% | 37% | 35% |
| Smoke cigarettes (CDC PLACES) | 16% | 13% | 14% |
| What stands out | Flat Rock | IL |
|---|---|---|
| More adults screened for colon cancer | 65.8% | 60.2% |
| More adults treating high blood pressure | 79.1% | 75.7% |
| More adults with COPD | 9.7% | 6.3% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Expected storm and flood damage is higher than in 58% of U.S. communities.
FEMA National Risk Index · OpenFEMA
0.2 miles of trail in 1 park or preserve.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Flat Rock Village Park | 0.2 mi | 1 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Museums, parks, gardens and other places to visit around Flat Rock. Close and well known come first.
17 mi National Historical ParkGeorge Rogers Clark National Historical Park113K visitors a year18 mi MuseumIndiana Military Museum
17 mi MuseumIndiana Territorial CapitolGeorge Rogers Clark National Historical Park: The original uploader was Agentmoose at English Wikipedia. on 2006-07-08., CC BY-SA 2.5 · Indiana Territorial Capitol: Nyttend, Public domain
None within 15 miles of Flat Rock; the nearest are
About 2 of every 100 Flat Rock residents are enrolled in college, against 6 across Illinois.
Where Flat Rock’s working residents go each day. Line width shows the share.
Census LEHD 2023
City in Illinois, United States
Flat Rock is a village in Crawford County, Illinois, United States. The population was 323 at the 2020 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Flat Rock has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
