Each edition grades its towns against each other only.
A town of 1,198, settled in 1867.
Illiopolis Township’s best subject grade is an A+ for cost of living; its weakest is a C for schools. On cost of living, just 67 of Illinois’ 1,284 towns do better. 25% of residents are 65 or older in Illiopolis Township, above both Illinois’ towns (19%) and U.S. towns (18%). Only 106 of Illinois’ 1,285 towns score lower on the outdoors. Illiopolis Township has fewer than 2,500 residents, so it gets subject grades but no overall grade.
In a town this size, neighbors are the best guide. Ask them anything.
Each subject compared with towns across the country (schools within Illinois), ordered by how far Illiopolis Township is from typical.
How TownRatings grades towns →
Census counts: 395 in 1870, 846 in 2020. The archive holds 2 old photos and papers going back to 2007 and 2 maps from 1954 on.
Who provides power, water and the rest in Illiopolis Township, 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 Illiopolis Township.
Most working residents leave Illiopolis Township for work: only 1% work in town. Since 2013, Illiopolis Township has added 80 jobs, to 177 in 2023. At 22 minutes, Illiopolis Township’s average trip to work is against 26 minutes in Illinois’ towns and 25 minutes across U.S. towns.
| Illiopolis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Working residents who work in town | 0.9% | 8.3% | 8% |
| Average trip to work | 22 minutes | 26 minutes | 25 minutes |
| Below the poverty line | 6.8% | 8.4% | 9.6% |
Census LEHD 2023 · ACS
Its public schools are run by Sangamon Valley CUSD 9. One of its 2 schools is below, with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| Sangamon Valley Middle SchoolLargest public middle schoolGrades 6–8 | Grades 6–8 | 145 | C |
NCES · EDFacts · graded within IL on state tests and graduation
Adults 18 to 34 are 13% of residents (23% statewide); people 65 and older are 25% of residents (17% statewide). 31% of adults 25 and older have a bachelor’s degree or more, vs 38% across Illinois.
| Illiopolis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Median age | 42.6 years | 40.7 years | 40.5 years |
| Bachelor’s degree or more, 25+ | 31% | 29% | 29% |
49% women, 51% men
That’s an even split within the survey’s margin of ±5.1 points. Across Illinois, 50.6% of residents are women.
| Illiopolis Township | IL | U.S. | |
|---|---|---|---|
| Under 10 | 15.3% | 11.5% | 11.6% |
| 10 to 17 | 9.7% | 10.4% | 10.3% |
| 18 to 24 | 5.1% | 9.1% | 9.1% |
| 25 to 34 | 7.7% | 13.6% | 13.7% |
| 35 to 44 | 14.7% | 13.3% | 13.2% |
| 45 to 54 | 6.9% | 12.4% | 12.2% |
| 55 to 64 | 15.6% | 12.8% | 12.7% |
| 65 to 74 | 19.1% | 10% | 10.2% |
| 75 and older | 6% | 7% | 7% |
| No diploma | 7.3% | 9.5% | 10.4% |
| High school | 36.5% | 25.1% | 26% |
| Some college | 15.5% | 19.2% | 19.1% |
| Associate’s | 9.7% | 8.3% | 8.8% |
| Bachelor’s | 24.3% | 22.6% | 21.6% |
| Graduate | 6.7% | 15.3% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 1,200, single groups can be off by several points
Illiopolis Township beats the Illinois average on 6 of 32 CDC measures and trails it on 2. 21% of adults get no exercise outside work in Illiopolis Township.
| Illiopolis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Get no exercise (CDC PLACES) | 21% | 23% | 25% |
| Food insecurity (CDC PLACES) | 11% | 13% | 14% |
| Obesity (CDC PLACES) | 38% | 37% | 35% |
| Sleep under 7 hours (CDC PLACES) | 34% | 35% | 36% |
| What stands out | Illiopolis Township | IL |
|---|---|---|
| Fewer uninsured adults | 6.2% | 9.9% |
| Fewer adults facing food insecurity | 10.5% | 15.9% |
| More adults who have had cancer | 9.7% | 7.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Illiopolis Township has chilly winters and warm summers. July afternoons reach 86°, January nights drop to 19° and about 19 inches of snow falls in a winter.
NOAA U.S. Climate Normals, 1991–2020
Expected storm and flood damage is lower than in 56% of U.S. communities.
FEMA National Risk Index · OpenFEMA
0.4 miles of trail in 1 park or preserve.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Wabash Park | — | 1 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
None within 15 miles of Illiopolis Township; the nearest are
About 4 of every 100 Illiopolis Township residents are enrolled in college, against 6 across Illinois.
Where Illiopolis Township’s working residents go each day. Line width shows the share.
Census LEHD 2023
Village in Illinois, United States
Illiopolis is a village in Sangamon County, Illinois, United States. As of the 2020 census, Illiopolis had a population of 846. It is part of the Springfield, Illinois Metropolitan Statistical Area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
Short answers, built from the data on this page.
Not for the area. Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades A+.