Merchants' National Bank · Photo: Einar Einarsson Kvaran aka Carptrash · CC BY-SA 3.06% of Grinnell’s land is conserved, and virtually every resident lives within a half mile of a park
Virtually every resident lives within a half mile of a park. 5.1 miles of mapped trail cross Grinnell, 0.9 per square mile of land. The biggest trail networks: Ahrens/Paschall Memorial Park (2.2 mi), Arbor Lake Park (0.8 mi).
Ahead of 88% of U.S. towns · #12 of 140 in Iowa. What drives it
What kind of outdoors town is Grinnell?
Read from the map. The page puts what stands out first.
How much outdoors does Grinnell have?
On conserved land, trails, park land and how close residents live to a park, Grinnell is ahead of 88% of U.S. towns, #12 of 140 in Iowa. All four inputs are above most U.S. towns; the share of residents near a park ranks highest, conserved land lowest.
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 Ahrens/Paschall Memorial Park, with 2.2 miles. Directions go to the nearest trailhead or public parking.
Arbor Lake Park
Central Park
Miller Park
All 10 parks & preserves
207 conserved acres
6% of Grinnell’s land. Who manages Grinnell’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Arbor Lake Park Local Park | Town or city | 79 | Open |
| Grinnell Athletic & Recreation Center Local Park | Town or city | 62 | Open |
| Miller Park Local Park | Town or city | 26 | Open |
| Merrill Park Local Park | Town or city | 8 | Open |
| Van Horne Park Local Park | Town or city | 8 | Open |
| Lions Park Local Park | Town or city | 6 | Open |
| Bailey Park Local Park | Town or city | 5 | Open |
| Jaycee Park Local Park | Town or city | 4 | Open |
| Grinnell Mutual Family Aquatic Center Local Recreation Area | Town or city | 4 | Open |
| Central Park Local Park | Town or city | 4 | Open |
1 smaller protected places aren’t shown.
24 places to go in Grinnell
Beaches, playgrounds, peaks, falls and more. Pick a kind.
22 playgrounds without a name on the map. Tap “Show all on map” to see them.
1 dog park without a name on the map. Tap “Show all on map” to see it.
2 lakes & rivers
1.4 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.
17 places on the National Register, one a National Historic Landmark
The country’s official list of places worth saving (National Park Service). The map also marks 2 historic points from OpenStreetMap: plaques, memorials and old buildings.
5 more on the History page.
September is the best month for walking in Grinnell
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) | 9.5 | 10.5 | 11.8 | 13.3 | 14.5 | 15.2 | 14.9 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 28 | 33 | 47 | 60 | 71 | 80 | 84 | 82 | 75 | 62 | 47 | 34 |
| Rain (in) | 1.0 | 1.2 | 2.1 | 3.8 | 5.1 | 5.6 | 4.3 | 4.3 | 3.7 | 2.9 | 2.0 | 1.5 |
January is the driest month (1.0 in) and July the warmest (highs of 84 °F). 5.6 inches fall in June, the wettest month. The climate in Grinnell →
Questions about parks and trails in Grinnell
Where can I hike in Grinnell?
The longest trail networks: Ahrens/Paschall Memorial Park, 2.2 miles; Arbor Lake Park, 0.8 miles; Central Park, 0.3 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Grinnell is conserved land?
6% of its land, against a typical 3% for an Iowa town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Grinnell’s trails?
Ahrens/Paschall Memorial Park and Arbor Lake Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Grinnell?
1.4 miles of bike routes are on the map: 1.4 of off-road paths.
Is there public land near Grinnell?
4,081 acres of parks and open public land lie inside Grinnell or within 10 miles of it (PAD-US), 238 of them inside the city line.
How much outdoors does Grinnell have?
Ahead of 88% of U.S. towns on the Outdoors grade, #12 of 140 in Iowa. 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 Grinnell 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 →