Photo: Nyttend · Public domainSullivan has 86 acres of parks, 20 for every 1,000 residents
The biggest trail networks: Tabor Park (1.6 mi). 1.7 miles of mapped trail cross Sullivan, 0.6 per square mile of land. 50% of residents live within a half mile of a park.
Ahead of 62% of U.S. towns · #385 of 768 in Illinois. What drives it
How much outdoors does Sullivan have?
On conserved land, trails, park land and how close residents live to a park, Sullivan is ahead of 62% of U.S. towns, #385 of 768 in Illinois. Trail miles hold the grade up; the share of residents near a park pulls it down.
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 Tabor Park, with 1.6 miles. Directions go to the nearest trailhead or public parking.
76 conserved acres
4% of Sullivan’s land. Who manages Sullivan’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Wyman Park Local Park | Town or city | 41 | Open |
| Tabor Park Local Park | Town or city | 36 | Open |
0.0 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.
1 place on the National Register
The country’s official list of places worth saving (National Park Service).
August is the best month for walking in Sullivan
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 | 10.6 | 11.8 | 13.2 | 14.3 | 15.0 | 14.7 | 13.7 | 12.4 | 11.1 | 9.9 | 9.4 |
| High (°F) | 35 | 40 | 52 | 64 | 74 | 83 | 86 | 85 | 79 | 67 | 52 | 40 |
| Rain (in) | 2.4 | 2.1 | 2.8 | 4.4 | 4.4 | 4.6 | 4.2 | 3.1 | 3.0 | 3.4 | 3.4 | 2.4 |
February is the driest month (2.1 in) and July the warmest (highs of 86 °F). 4.6 inches fall in June, the wettest month. The climate in Sullivan →
Questions about parks and trails in Sullivan
Where can I hike in Sullivan?
The longest trail networks: Tabor Park, 1.6 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Sullivan is conserved land?
4% of its land, against a typical 4% for an Illinois town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Sullivan’s trails?
Tabor Park and Wyman Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Sullivan?
2,150 acres of parks and open public land lie inside Sullivan or within 10 miles of it (PAD-US), 86 of them inside the city line.
How much outdoors does Sullivan have?
Ahead of 62% of U.S. towns on the Outdoors grade, #385 of 768 in Illinois. 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 Sullivan 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 →