172 years in pictures
Census counts: 1,117 in 1870, 32,289 in 2020. The archive holds 6 old photos and papers going back to 1917 and 6 maps from 1907 on.
- 1854O'Fallon Township is settled
Each edition grades its towns against each other only.

A town of 26,976, settled in 1854.
O'Fallon Township grades A overall, 159th among Illinois's 767 graded towns, with clear strengths and some subjects that lag. It is healthier than 85% of U.S. towns and the median household earns $100K. It also does better than most on schools: its schools rank ahead of 80% of Illinois towns. Its lowest everyday mark is in cost of living: homes are expensive, about $281K for a typical one and 3.5 times the St. Louis metro’s $80K median household income. 50% of adults 25 and older hold a bachelor’s degree or more in O'Fallon Township, above both Illinois’ towns (29%) and U.S. towns (29%). O'Fallon Township is easier to get around on foot or by transit than 78% of U.S. towns. The biggest park or preserve is Horner Recreation Park, at 46 acres.
Where O'Fallon Township beats most towns.
| School | Grades | Students |
|---|---|---|
| Marie Schaefer Elem School | PK–5 | 598 |
| Delores Moye Elem School | PK–5 | 595 |
| Estelle Kampmeyer Elem School | PK–5 | 465 |
Where O'Fallon Township’s working residents go each day. Line width shows the share.
Census LEHD 2023
Each subject compared with towns across the country (schools within Illinois), ordered by how far O'Fallon Township is from typical.
How TownRatings grades towns →
Census counts: 1,117 in 1870, 32,289 in 2020. The archive holds 6 old photos and papers going back to 1917 and 6 maps from 1907 on.
Museums, parks, gardens and other places to visit around O'Fallon Township. Close and well known come first.
Big draw11 mi State parkCahokia
Big draw18 mi Stadium & arenaThe Dome at America's Center
18 mi Stadium & arenaBusch Stadium
11 mi LandmarkMonks Mound
17 mi National ParkGateway Arch National Park2.2M visitors a year
18 mi Stadium & arenaEnterprise CenterCahokia: Thank You (24 Millions ) views, CC BY 2.0 · The Dome at America's Center: Paul Sableman, CC BY 2.0 · Busch Stadium: Lee Ann Ratledge, CC BY 4.0 · Monks Mound: Skubasteve834, CC BY-SA 3.0 · Gateway Arch National Park: Daniel Schwen, CC BY-SA 4.0 · Enterprise Center: Haaron755, CC BY-SA 3.0
Who provides power, water and the rest in O'Fallon 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 O'Fallon Township.
Its widest gap with Illinois is no health insurance: 5.9% of those 18–64 have no health insurance, against 9.9% statewide.
20% of adults binge drink in O'Fallon Township. O'Fallon Township beats the Illinois average on 11 of 32 CDC measures and trails it on 0. 19% of adults get no exercise outside work in O'Fallon Township.
| O'Fallon Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 20% | 18% | 16% |
| Frequent physical distress (CDC PLACES) | 11% | 13% | 14% |
| Get no exercise (CDC PLACES) | 19% | 23% | 25% |
| Smoke cigarettes (CDC PLACES) | 11% | 13% | 14% |
| What stands out | O'Fallon Township | IL |
|---|---|---|
| Fewer uninsured adults | 5.9% | 9.9% |
| Fewer adults facing food insecurity | 10.6% | 15.9% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Its public schools are run by O Fallon CCSD 90. Three of its 9 schools are below, each with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| Fulton Jr High SchoolLargest public middle schoolGrades 6–8 | Grades 6–8 | 667 | A− |
| O Fallon High SchoolLargest public high schoolGrades 9–12 | Grades 9–12 | 2,540 | A− |
| J Emmett Hinchcliffe Sr Elem SchTop results in townGrades PK–5 | Grades PK–5 | 452 | A |
NCES · EDFacts · graded within IL on state tests and graduation
Most working residents leave O'Fallon Township for work: only 12% work in town. 20% of O'Fallon Township workers work from home. Jobs based in O'Fallon Township grew to 7,286 in 2023, 811 more than in 2013.
| O'Fallon Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Work from home | 20% | 11% | 11% |
| Median household income | $100,000 | $83,000 | $80,000 |
| Working residents who work in town | 12% | 8.3% | 8% |
| Below the poverty line | 7.4% | 8.4% | 9.6% |
Census LEHD 2023 · ACS
O'Fallon Township has chilly winters and warm summers. The July high in O'Fallon Township is 88°F.
NOAA U.S. Climate Normals, 1991–2020
6.3 miles of trail in 8 parks and preserves.
| O'Fallon Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Miles of trail per square mile | 0.2 miles per square mile | 0.3 | 0.4 |
| Conserved land | 4.3% | 3.6% | 4.3% |
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Horner Recreation Park | 0.2 mi | 46 |
| 2. Rock Springs Park | 0.1 mi | 43 |
| 3. O'Fallon City Park | — | 35 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Expected storm and flood damage is higher than in 59% of U.S. communities. Since 1979, 10 flood insurance claims have been paid out in O'Fallon Township.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
3 within 15 miles of the center of O'Fallon Township
About 8 of every 100 O'Fallon Township residents are enrolled in college, against 6 across Illinois.
City in Illinois, United States
O'Fallon is a city in St. Clair County, Illinois, United States. The 2020 census listed the population at 32,289. The city is the second largest city in the Metro East region and Southern Illinois. It sits 5 miles (8.0 km) from Scott Air Force Base and 18 miles (29 km) from Downtown St. Louis. Like its namesake in St. Charles County, Missouri, O'Fallon is part of the St. Louis metro area. This makes O'Fallon (along with the two Troys in Illinois and Missouri) one of the few pairs of like-named municipalities to be part of the same metro region.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
6 towns share a border with O'Fallon Township.
| Town | IL rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| O'Fallon Township | #159 | A | C | — | A− | A |
| Caseyville Township | #342 | B+ | C+ | — | B | B |
| Shiloh Valley Township | #170 | A | C− | — | A | A− |
| O'Fallon | #252 | A− | C− | B− | A− | A |
| Lebanon Township | — | — | — | — | — | — |
| Jarvis Township | #107 | A | B− | — | A | A− |
| Shiloh | #156 | A | C | B+ | A− | A− |
O'Fallon Township, Caseyville Township, Shiloh Valley Township and Jarvis Township report no FBI crime data of their own. Lebanon Township isn’t graded (fewer than 1,000 residents, or not enough data). Compare O'Fallon Township with a neighbor →
Short answers, built from the data on this page.
By most measures, yes. O'Fallon Township grades A overall, better than 86% of U.S. towns and #159 of 767 in Illinois. It grades A for health and A− for schools.
Louis, MO-IL metro area). Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades C.