Each edition grades its towns against each other only.
Home to 3 places on the National Register of Historic Places.
3.7% of residents live below the poverty line in Andover, below both Illinois’ towns (8.4%) and U.S. towns (9.6%). Its National Register listings include Andover Chapter House and August and Margaretha Rehnstrom House. Andover has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
Where Andover beats most towns.
In a town this size, neighbors are the best guide. Ask them anything.
Census counts: 302 in 1880, a low of 197 in 1930, 555 in 2020. The archive holds 4 old photos and papers going back to 1851 and 3 maps from 1937 on.
3 places on the National Register of Historic Places.
Who provides power, water and the rest in Andover, 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 Andover.
Most working residents leave Andover for work: only 2% work in town. At 30 minutes, Andover’s average trip to work is above both the Illinois town median (26 minutes) and the median of U.S. towns (25 minutes). Jobs based in Andover grew to 48 in 2023, 38 more than in 2013.
| Andover | Illinois towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 30 minutes | 26 minutes | 25 minutes |
| Working residents who work in town | 2.2% | 8.3% | 8% |
Census LEHD 2023 · ACS
Andover has cold winters and warm summers. July afternoons reach 84°, January nights drop to 14° and about 27 inches of snow falls in a winter.
NOAA U.S. Climate Normals, 1991–2020
Expected storm and flood damage is lower than in 61% of U.S. communities.
FEMA National Risk Index · OpenFEMA
Andover beats the Illinois average on 6 of 32 CDC measures and trails it on 1. 20% of Andover adults binge drink.
| Andover | Illinois towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 20% | 18% | 16% |
| Food insecurity (CDC PLACES) | 11% | 13% | 14% |
| Get no exercise (CDC PLACES) | 22% | 23% | 25% |
| Diabetes (CDC PLACES) | 11% | 11% | 12% |
| What stands out | Andover | IL |
|---|---|---|
| Fewer adults facing food insecurity | 10.6% | 15.9% |
| Fewer adults facing housing insecurity | 8.9% | 13.2% |
| More adults who have had cancer | 9.5% | 7.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
0.0 miles of trail in 1 park or preserve.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Lake Park | — | 12 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
Museums, parks, gardens and other places to visit around Andover. Close and well known come first.
20 mi Ancient siteRock Island Arsenal
19 mi MuseumBlack Hawk State Historic Site
22 mi MuseumFigge Art Museum77K visitors a year13 mi Zoo & aquariumNiabi Zoo
23 mi MuseumPutnam Museum
23 mi GardenVander Veer Botanical ParkRock Island Arsenal: Robert A, Ryan, J. Ceronia, and Bruce A. Harms, Photographers, Public domain · Black Hawk State Historic Site: Bill Whittaker (talk). Original uploader was Billwhittaker at English Wikipedia, CC BY-SA 3.0 · Figge Art Museum: Ctjf83, CC BY-SA 3.0 · Putnam Museum: Ctjf83 of English Wikipedia (log), Public domain · Vander Veer Botanical Park: David Wilson, CC BY 2.0
1 within 15 miles of the center of Andover
About 4 of every 100 Andover residents are enrolled in college, against 6 across Illinois.
Where Andover’s working residents go each day. Line width shows the share.
Census LEHD 2023
3 places in Andover on the National Register of Historic Places.
Village in Illinois, United States
Andover is a village in Henry County, Illinois, United States. The population was 555 at the 2020 census, down from 578 in 2010 census.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Andover has fewer than 1,000 residents, too few for fair grades; the figures below are still real. Home to 3 places on the National Register of Historic Places.
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