Each edition grades its towns against each other only.
Among 769 Illinois towns, just 1 have a higher January low than Belknap. 36% of the land in Belknap is conserved, against 3.7% in Illinois’ towns and 4.3% across U.S. towns. The biggest park or preserve is Cache River State Natural Area, at 216 acres. Belknap has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Belknap beats most towns.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 358 in 1890, a peak of 424 in 1920, 88 in 2020. The archive holds 12 old photos and papers going back to 2010 and 3 maps from 1918 on.
Who provides power, water and the rest in Belknap, 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 Belknap.
The typical Belknap home is worth about $153,000, about the same as a year ago, 48% below the Illinois typical home.
Zillow Home Value Index · Redfin Data Center
0.7 miles of trail in 1 park or preserve. Belknap’s trail density is 0.6 miles per square mile, where Illinois’ towns sit at 0.3 and U.S. towns at 0.4.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Cache River State Natural Area | — | 216 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Expected storm and flood damage is higher than in 81% of U.S. communities.
FEMA National Risk Index · OpenFEMA
Belknap’s July high is 89°F. Belknap has chilly winters and warm summers, with plenty of rain.
NOAA U.S. Climate Normals, 1991–2020
18% of adults report frequent physical distress in Belknap. Belknap beats the Illinois average on 1 of 32 CDC measures and trails it on 17. 27% of adults say their health is fair or poor in Belknap.
| Belknap | Illinois towns | U.S. towns | |
|---|---|---|---|
| Frequent physical distress (CDC PLACES) | 18% | 13% | 14% |
| Diabetes (CDC PLACES) | 17% | 11% | 12% |
| High blood pressure (CDC PLACES) | 44% | 35% | 35% |
| Smoke cigarettes (CDC PLACES) | 20% | 13% | 14% |
| What stands out | Belknap | IL |
|---|---|---|
| More adults treating high blood pressure | 81% | 75.7% |
| More adults with COPD | 13.2% | 6.3% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
1 within 15 miles of the center of Belknap
About 0 of every 100 Belknap residents are enrolled in college, against 6 across Illinois.
Village in Illinois, United States
Belknap is a village in Johnson County, Illinois, United States. The population was 88 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.
Belknap has fewer than 1,000 residents, too few for fair grades; the figures below are still real.