Best PlacesO'Fallon, IL Best Neighborhoods
2026–2027 edition · Data updated July 2026
Every neighborhood in and around O'Fallon, scored on 40 measures of daily life and ranked to fit what matters to you. Costs and crime both read low, and the nearest big city is a drive away. To work out which city fits you best, start with the best places to live tool.
O'Fallon ranks 619th of 2,098 U.S. cities on the BestNeighborhood index. It scores highest on a stable housing market by a wide margin, and the weather ranks lowest.
The best neighborhoods in O'Fallon
BestNeighborhood is the only ranking that scores 40 measures of daily life neighborhood by neighborhood and lets you re-weight every one of them yourself.
O'Fallon's strengths and weaknesses
Where O'Fallon ranks high
- Housing crash safetyBetter than 95% of cities
- Cost of living vs incomeBetter than 90% of cities
- Educational attainmentBetter than 84% of cities
- Voter turnoutBetter than 83% of cities
- Local economyBetter than 83% of cities
Where O'Fallon ranks low
- Nice weatherabout 50 pleasant days a year, better than only 1% of cities
- Low income/sales/gas taxBetter than only 5% of cities
- State fiscal healthBetter than only 6% of cities
- Low property taxBetter than only 12% of cities
- Air qualityBetter than only 18% of cities
What it costs to buy a home in O'Fallon
A household needs to earn about $82,000 a year to comfortably buy the median O'Fallon home, at 20% down and today's 30-year rate. That is below the area's own median income of $115,899, so a typical household can afford the median home outright.
Where the monthly payment goes
Assumes a 20% down payment, a 6.6% 30-year fixed rate, and a 28% share of income going to the payment. The rate is the 2026-07-23 30-year fixed average, series MORTGAGE30US from the St. Louis Fed, which publishes Freddie Mac's weekly survey. Against the median home value, property tax uses O'Fallon's effective rate of 1.79%, and insurance is estimated at 0.4% of home value a year.
Renting versus buying
At today's prices, buying tends to cost more than renting for about the first 7 years, then pulls ahead as rent keeps rising and the mortgage builds equity. The chart tracks the running cost of each.
Who lives in O'Fallon
O'Fallon's age mix sits close to the national median.
Residents by age
Racial and ethnic makeup has its own map. See the race and diversity map for O'Fallon.
Who works in O'Fallon, and how
Work in O'Fallon centers on health care & social and professional & technical. Unemployment is low, and jobs are growing.
Largest industries
How people get to work
- Drive or carpool 76%
- Work from home 19%
- Transit, walk, or bike 4%
Life in O'Fallon
O'Fallon has more restaurants and bars per resident than 79% of cities and more parkland per resident than 95% of cities. Dining, parks, and nightlife concentrates in some parts of O'Fallon and thins out in others, which the map shows.
What the weather is like in O'Fallon, month by month
O'Fallon sees roughly 50 pleasant days a year. July highs average about 89 degrees. January highs sit near 42, with lows near 25. The comfortable stretch runs April, May, September, and October.
Show the monthly temperatures
| Month | Avg high | Avg | Avg low |
|---|---|---|---|
| January | 42° | 32° | 25° |
| April | 69° | 56° | 46° |
| July | 89° | 79° | 70° |
| October | 71° | 59° | 48° |
Flying in and out of O'Fallon
The nearest airport, Scott AFB/Midamerica St Louis, is about 6 miles away and is a small airport. The nearest major hub is St Louis Lambert International, about 26 miles away.
The best schools in and around O'Fallon
Schools across O'Fallon average a C+, better than 32% of cities.
Top elementary schools
- J Emmett Hinchcliffe Sr Elem SchB+ · 53% proficient
- Scott Elem SchoolB · 49% proficient
- Mascoutah Elem SchoolB · 46% proficient
Top middle schools
- Mascoutah Middle SchoolB · 46% proficient
- Fulton Jr High SchoolC+ · 38% proficient
- Amelia V Carriel Jr HighC · 35% proficient
Top high schools
- Mascoutah High SchoolB− · 43% proficient
- O Fallon High SchoolC+ · 36% proficient
- Belleville High School-eastC− · 27% proficient
Grades come from K-12 test scores, with scores projected for schools missing data. See every O'Fallon school and its grade on SchoolGrade.
O'Fallon measure by measure
Cards are ordered by how much each measure matters to you, so the ones you weighted highest come first. Expand to see every measure. Percentages compare O'Fallon against the other 2,097 cities.
Who O'Fallon suits
Families
Schools land around the 32nd percentile and crime safety beats 76%.
Remote workers
Cost of living against local pay beats 90% of cities and 19% already work from home.
Common questions about living in O'Fallon
Is O'Fallon a good place to live?
Using BestNeighborhood's default rankings, O'Fallon ranks 619th of 2,098 cities. It scores highest on a stable housing market, what local pay buys, and an educated workforce, and lowest on the weather and taxes. How good it is for you depends on which of those you weight most, which the map lets you set.
Is O'Fallon expensive to live in?
The median home is worth $276,923. The overall cost of living runs about 15% below the national average. Set against a $115,899 median income, cost of living beats 90% of cities.
Is O'Fallon safe?
Yes, O'Fallon is safer than 76% of cities. Safety varies a lot by neighborhood. Crime costs an estimated $192 per resident a year.
What is the weather like in O'Fallon?
July highs average about 89 degrees, and January highs near 42 with lows near 25. That works out to about 50 pleasant days a year, more than 0% of cities.
Is O'Fallon good for families?
Schools beat 32% of cities, crime safety beats 76%, and childcare runs $957 a month.
Compare O'Fallon with other cities
Sources and methodology
Every measure on this page is scored for each neighborhood, then rolled up to O'Fallon. Scores are absolute rather than ranked, which means a 60 in O'Fallon represents the same real quantity as a 60 anywhere else, and the ranking is a weighted average of those absolutes. The map colors come from a national scale calibrated against a population weighted random sample of 5,000 neighborhoods. That absolute scoring is what no other places-to-live ranking does: it puts a single neighborhood, a town, a metro, and a state on one scale, so the same 40 measures answer both which metro to move to and which street inside it to buy on. Read the full methodology.
O'Fallon detail on BestNeighborhood maps:
- Walk Grade for O'Fallon: walkability, transit, and biking, measured on the real street network rather than by straight line distance.
- Noise in O'Fallon: road, rail, and aviation sound modeling calibrated against federal ground truth measurements.
- Conservative vs liberal map of O'Fallon: precinct level election results apportioned to neighborhoods.
- Mobile and cell coverage in O'Fallon: carrier by carrier coverage behind the cell score.
O'Fallon detail on related sites:
- CrimeGrade: neighborhood crime rates behind the crime safety score.
- ISPreports.org: provider by provider internet availability and advertised speeds.
- CoverageWatch: the car insurance premiums behind the cheap car insurance score.
Federal and public data:
- U.S. Census Bureau American Community Survey: income, home value, rent, vacancy, commute time and mode, educational attainment, home age, age structure, household type, industry, and race.
- NOAA Global Surface Summary of the Day: the daily station record behind the monthly temperatures and the pleasant-day count.
- FAA Passenger Boarding Data: airport size and annual passenger counts.
- Freddie Mac Primary Mortgage Market Survey: the 30-year fixed rate used in the cost-to-buy estimate.
- FBI Crime Data Explorer: reported offenses behind the tangible crime cost estimate.
- U.S. EPA Air Quality System: five year average air quality index.
- FEMA National Risk Index: expected annual loss from natural hazards.
- CDC PLACES: disease burden, preventable risk, and barriers to care.
- National Center for Education Statistics: school enrollment and assessment inputs behind the school grade.
- FCC National Broadband Map: internet and wireless availability.
- U.S. Bureau of Labor Statistics: employment and job growth behind the local economy score.
- Religious activity uses a proprietary religious signal measurement.
Your priorities
Move a slider to say how much a measure matters. Zero turns it off.