Photo: Classiv · CC BY-SA 4.0O'Fallon has 16 miles of mapped trails, 0.5 for every square mile of land
The biggest trail networks: Civic Park (0.9 mi), Boardwalk Springs Park (0.5 mi). 594 acres are parks and preserves, 6.3 per 1,000 residents. 42% of residents live within a half mile of a park.
Ahead of 42% of U.S. towns · #147 of 247 in Missouri. What drives it
How much outdoors does O'Fallon have?
On conserved land, trails, park land and how close residents live to a park, O'Fallon is ahead of 42% of U.S. towns, #147 of 247 in Missouri. Trail miles hold the grade up; park acres per resident pull it down.
Few Missouri towns conserve much land (a typical one, 2%; the U.S., 4%), so O'Fallon’s 3% is ahead of 67% of Missouri towns, while its trails per square mile lead 68% of them.
PAD-US, OpenStreetMap (© OpenStreetMap contributors), Census 2025 Gazetteer and 2020 blocks; details in Sources below. How TownRatings grades the outdoors →
Conserved land, trails & bike routes
Tap a number to zoom to a park. Tap a layer to hide it.
Pick a walk
The longest trail network is Civic Park, with 0.9 miles. Directions go to the nearest trailhead or public parking.
Boardwalk Springs Park
Ozzie Smith Sports Complex
All 16 parks & preserves
570 conserved acres
3% of O'Fallon’s land. Who manages O'Fallon’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. 28 acres are conservation easements, usually private land. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Ofallon Sports Park Local Recreation Area | Town or city | 171 | Open |
| O'Day Park (Under Development) Local Park | Town or city | 75 | Open |
| Dames Park Local Park | Town or city | 61 | Open |
| Westhoff Park Local Park | Town or city | 55 | Open |
| Ft. Zumwalt Park Local Park | Town or city | 49 | Open |
| Ozzie Smith Complex Local Recreation Area | Town or city | 38 | Open |
| Carshield Field Local Recreation Area | Town or city | 30 | Open |
| Winterhaven Park Local Park | Town or city | 20 | Open |
| Busch (August A.) Memorial Conservation Area State Conservation Area | Not recorded | 18 | Restricted |
| Civic Park Local Park | Town or city | 16 | Open |
2 smaller protected places aren’t shown.
30 places to go in O'Fallon
Beaches, playgrounds, peaks, falls and more. Pick a kind.
Plus 22 playgrounds without a name on the map. Tap “Show all on map” to see them.
5 picnic areas without a name on the map.
1 named trail and 3 lakes & rivers
25 miles of bike routes
Bike lanes are often missing from the map in smaller towns, so that number is likely low.
Includes school and college facilities, which aren’t always open to the public.
3 places on the National Register
The country’s official list of places worth saving (National Park Service). The map also marks 1 historic points from OpenStreetMap: plaques, memorials and old buildings.
The walking year in O'Fallon
NOAA’s 1991–2020 normals for the town and the daylight at its latitude. Outlined months have long days, highs of 59 to 86 °F and little rain for the place.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 9.7 | 10.7 | 11.8 | 13.2 | 14.3 | 14.9 | 14.6 | 13.7 | 12.4 | 11.1 | 10.0 | 9.5 |
| High (°F) | 39 | 45 | 56 | 67 | 76 | 84 | 88 | 87 | 80 | 69 | 55 | 44 |
| Rain (in) | 2.5 | 2.3 | 3.6 | 4.8 | 5.0 | 4.5 | 3.8 | 3.7 | 3.4 | 3.2 | 3.5 | 2.6 |
February is the driest month (2.3 in) and July the warmest (highs of 88 °F). 5.0 inches fall in May, the wettest month. Summer highs reach 88 °F, too hot for the outline. The climate in O'Fallon →
O'Fallon and its neighbors
O'Fallon has the most mapped trails of the 7 towns around it. Tap a town to see its outdoors.
| Town | Conserved of land | Trail mi per sq mi | Park acres per 1,000 | Near a park ½ mile | Outdoors |
|---|---|---|---|---|---|
| O'Fallon | 3% | 0.5 | 6 | 42% | C+ |
| Dardenne Prairie | 3% | 0.7 | 11 | 45% | B− |
| Lake St. Louis | 2% | 1.1 | 6 | 54% | B− |
| St. Peters | 9% | 0.2 | 23 | 86% | B+ |
| Cottleville | 8% | 0.4 | 49 | 73% | A− |
| Weldon Spring | under 1% | 1.8 | 26 | 51% | B |
| Wentzville | 1% | 0.6 | 5 | 29% | C |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in O'Fallon
Where can I hike in O'Fallon?
The longest trail networks: Civic Park, 0.9 miles; Boardwalk Springs Park, 0.5 miles; Dames Park, 0.4 miles; Ozzie Smith Sports Complex, 0.3 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of O'Fallon is conserved land?
3% of its land, against a typical 2% for a Missouri town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on O'Fallon’s trails?
Civic Park and Boardwalk Springs Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in O'Fallon?
25 miles of bike routes are on the map: 10 of painted or protected lanes, 11 of off-road paths and 3.6 of shoulders and shared lanes.
Is there public land near O'Fallon?
10,451 acres of parks and open public land lie inside O'Fallon or within 10 miles of it (PAD-US), 594 of them inside the city line.
How much outdoors does O'Fallon have?
Ahead of 42% of U.S. towns on the Outdoors grade, #147 of 247 in Missouri. The grade combines the share of land that is conserved, miles of mapped trail per square mile of land, park acres per 1,000 residents and the share of residents within a half mile of a park. It’s a character grade, so it isn’t part of the overall grade. How it works.
Trail talk
Conditions, parking and favorite walks from O'Fallon neighbors.
Where this page comes from
Conserved and public land: USGS Protected Areas Database of the United States (PAD-US), service updated July 2026. Parks, trails, playgrounds, beaches and other places: OpenStreetMap (© OpenStreetMap contributors, ODbL), map data as of 2026-10-28. Land and water area: Census 2025 Gazetteer. Residents near a park: 2020 Census blocks. National Register: National Park Service. How TownRatings grades the outdoors →