Each edition grades its towns against each other only.
A city of 96,101, settled in 1856. Public schools that outperform most of Missouri.
Trash & recyclingO'Fallon grades A overall, 23rd of 247 graded towns in Missouri, with clear strengths and some subjects that lag. The median household earns $110K and its schools rank ahead of 89% of Missouri towns. On the other side, FEMA rates its natural-hazard risk higher than 70% of U.S. communities, with inland flooding at the top. Only 15 of Missouri’s 213 towns score higher on safety. O'Fallon’s median household income is $110,000, above both Missouri’s towns ($62,000) and U.S. towns ($80,000). O'Fallon has 3 places on the National Register of Historic Places, among them St. Mary's Institute of O'Fallon and Sage Chapel Cemetery.
Where O'Fallon beats most towns.
| School | Grades | Students |
|---|---|---|
| Crossroads Elem. | K–5 | 757 |
| Progress South Elem. | K–5 | 642 |
| Discovery Ridge Elementary | PK–5 | 590 |
79,329 counted in 2010 and 91,316 in 2020; an estimated 96,101 in 2025.
Growth hasn’t slowed: 5.2% since 2020, after 15.1% in the decade before.
U.S. Census 2010 & 2020 counts · Census Bureau estimate, July 1, 2025
Each subject compared with towns across the country (schools within Missouri), ordered by how far O'Fallon is from typical.
How TownRatings grades towns →
Census counts: 295 in 1880, 91,316 in 2020. The archive holds 11 old photos and papers going back to 2008 and 5 maps from 1954 on.
3 places on the National Register of Historic Places.
Who provides power, water and the rest in O'Fallon, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
Ordered by what stands out in O'Fallon.
O'Fallon fares better on crime within Missouri than nationally, has less tooth loss than most of Missouri and has household incomes well above the Missouri norm.
Its public schools are run by the Fort Zumwalt School District. Three of its 28 schools are below, each with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| Frontier MiddleLargest public middle schoolGrades 6–8 | Grades 6–8 | 1,243 | A− |
| Liberty High SchoolLargest public high schoolGrades 9–12 | Grades 9–12 | 1,647 | A |
| FT. Zumwalt West HighTop results in townGrades 9–12 | Grades 9–12 | 1,643 | A+ |
NCES · EDFacts · graded within MO on state tests and graduation
The median property tax bill is $3,609, against $1,948 across Missouri, another input to its cost-of-living grade.
The typical O'Fallon home is worth about $378,000, up 1.9% in a year, 42% above the Missouri typical home. The median rent in O'Fallon is $1,443 a month.
| O'Fallon | Missouri towns | U.S. towns | |
|---|---|---|---|
| Households that own their home | 81% | 64% | 73% |
| Median rent | $1,443 a month | $970 a month | $1,185 a month |
Census ACS, 2020–24 · Zillow Home Value Index · Redfin Data Center
16 miles of trail in 16 parks and preserves. The biggest park or preserve is Westoff park, at 56 acres.
| O'Fallon | Missouri towns | U.S. towns | |
|---|---|---|---|
| Miles of trail per square mile | 0.5 miles per square mile | 0.3 | 0.4 |
| Conserved land | 2.9% | 2.1% | 4.3% |
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Civic Park | 0.9 mi | 17 |
| 2. Boardwalk Springs Park | 0.5 mi | 5 |
| 3. Dames Park | 0.4 mi | 54 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
At 8.9 crimes per 1,000 residents a year, it reports less crime than 94% of Missouri’s graded towns. Reported crimes fell from 741 to 596 over the last three FBI years, a drop beyond ordinary year-to-year swings.
O'Fallon’s property crime rate is 5.2 per 1,000 residents.
| O'Fallon | Missouri towns | U.S. towns | |
|---|---|---|---|
| Property crimes per 1,000 (2025) | 5.2 per 1,000 residents | 12.5 | 9.9 |
| Violent crimes per 1,000 (2025) | 1 per 1,000 residents | 2.3 | 1.6 |
FBI crime data, 2025 · crimes reported to police
Its widest gap with Missouri is tooth loss: 10.2% of those 65+ have lost all their teeth, against 15.8% statewide. Against the 7,070 U.S. towns with household incomes like O'Fallon’s, it is healthier than 56%, a smaller edge than it has nationally: part of it comes with its incomes.
O'Fallon beats the Missouri average on 17 of 32 CDC measures and trails it on 0. 19% of O'Fallon adults binge drink.
| O'Fallon | Missouri towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 19% | 16% | 16% |
| Feel lonely (CDC PLACES) | 29% | 32% | 33% |
| High blood pressure (CDC PLACES) | 30% | 37% | 35% |
| Frequent physical distress (CDC PLACES) | 12% | 15% | 14% |
| What stands out | O'Fallon | MO |
|---|---|---|
| Fewer older adults who have lost all their teeth | 10.2% | 15.8% |
| Fewer adults facing food insecurity | 9% | 13.7% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Since 1978, 45 flood insurance claims have been paid out in O'Fallon.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
O'Fallon has chilly winters and warm summers. July afternoons reach 88°, January nights drop to 22° and about 14 inches of snow falls in a winter.
NOAA U.S. Climate Normals, 1991–2020
Most working residents leave O'Fallon for work: only 15% work in town. 5.4% of residents live below the poverty line in O'Fallon. Since 2013, O'Fallon has added 7,044 jobs, to 38,430 in 2023.
| O'Fallon | Missouri towns | U.S. towns | |
|---|---|---|---|
| Work from home | 18% | 9% | 11% |
| Below the poverty line | 5.4% | 14% | 9.6% |
| Working residents who work in town | 15% | 13% | 8% |
| Average trip to work | 26 minutes | 22 minutes | 25 minutes |
Census LEHD 2023 · ACS
Museums, parks, gardens and other places to visit around O'Fallon. Close and well known come first.
Big draw37 mi State parkCahokia
Big draw31 mi Stadium & arenaThe Dome at America's Center
19 mi Theme parkMid America Adventure
31 mi Stadium & arenaBusch Stadium
31 mi National ParkGateway Arch National Park2.2M visitors a year
29 mi Ancient sitePiasaCahokia: Thank You (24 Millions ) views, CC BY 2.0 · The Dome at America's Center: Paul Sableman, CC BY 2.0 · Mid America Adventure: Chris Hagerman from New Port Richey, FL, US, CC BY 2.0 · Busch Stadium: Lee Ann Ratledge, CC BY 4.0 · Gateway Arch National Park: Daniel Schwen, CC BY-SA 4.0 · Piasa: Burfalcy, CC BY-SA 3.0
6 within 15 miles of the center of O'Fallon
About 5 of every 100 O'Fallon residents are enrolled in college, about the same as Missouri.
12 notable people were born in O'Fallon.
City in Missouri, United States
O'Fallon ( oh-FAL-ən) is a city in St. Charles County, Missouri, United States. It is part of the St. Louis metropolitan statistical area, along Interstates 64 and 70 between Lake St. Louis and St. Peters. As of the 2020 census, O'Fallon had a population of 91,316, making it St. Louis's most populous suburb as well as the most populous municipality in St. Charles County and the 7th-most populous in Missouri. O'Fallon's namesake in St. Clair County, Illinois, is also part of the St. Louis region. The two cities are one of the few pairs of same-named municipalities to be part of the same metro area.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
8 towns share a border with O'Fallon.
| Town | MO rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| O'Fallon | #23 | A | C | A− | A | A− |
| Dardenne Prairie | #41 | A− | C− | — | A | A− |
| Lake St. Louis | #31 | A− | C− | A− | A | A− |
| St. Paul | #26 | A | B− | — | A | B+ |
| St. Peters | #43 | A− | C+ | B− | A | B+ |
| Cottleville | #4 | A+ | C− | A+ | A+ | A− |
| Weldon Spring | #55 | A− | D | — | A+ | A |
| Josephville | — | — | — | — | — | — |
Dardenne Prairie, St. Paul and Weldon Spring report no FBI crime data of their own. Josephville isn’t graded (fewer than 1,000 residents, or not enough data). Compare O'Fallon with a neighbor →
Short answers, built from the data on this page.
By most measures, yes. O'Fallon grades A overall, better than 87% of U.S. towns and #23 of 247 in Missouri. It grades A− for health, A− for safety and A for schools. Hazard risk is its weak spot, with a C−.
That is 4.7 years of the area's median household income ($80,196 across the St. 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.
12 notable people were born here, including Josh Sargent and Megan Meier.
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