Photo: AEMoreira042281 · CC BY-SA 3.05% of Dunellen’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. 0.9 miles of mapped trail cross Dunellen, 0.8 per square mile of land. The biggest trail networks: Columbia Park (0.7 mi).
Ahead of 75% of U.S. towns · #309 of 468 in New Jersey. What drives it
What kind of outdoors town is Dunellen?
Read from the map. The page puts what stands out first.
How much outdoors does Dunellen have?
On conserved land, trails, park land and how close residents live to a park, Dunellen is ahead of 75% of U.S. towns, #309 of 468 in New Jersey. The share of residents near a park holds the grade up; park acres per resident pull it down.
New Jersey towns conserve more land than most (a typical one, 11%; the U.S., 4%), so Dunellen’s 5% is ahead of 25% of New Jersey towns, while its trails per square mile lead 59% 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 Columbia Park, with 0.7 miles. Directions go to the nearest trailhead or public parking.
All 5 parks & preserves
33 conserved acres
5% of Dunellen’s land. Who manages Dunellen’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Columbia Park Local Park | Town or city | 13 | Open |
| Unknown Park Local Park | Town or city | 11 | Open |
| Middlesex County Park Local Park | County | 10 | Open |
5 places to go in Dunellen
Beaches, playgrounds, peaks, falls and more. Pick a kind.
5 playgrounds without a name on the map. Tap “Show all on map” to see them.
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.
The best walking months in Dunellen: April to June and August
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) | 9.6 | 10.6 | 11.8 | 13.2 | 14.4 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.9 | 9.3 |
| High (°F) | 40 | 43 | 51 | 63 | 73 | 82 | 87 | 85 | 78 | 66 | 55 | 45 |
| Rain (in) | 3.5 | 2.9 | 4.2 | 3.8 | 4.1 | 4.4 | 5.0 | 4.5 | 4.3 | 4.3 | 3.3 | 4.3 |
February is the driest month (2.9 in) and July the warmest (highs of 87 °F). 5.0 inches fall in July, the wettest month. Summer highs reach 87 °F, too hot for the outline. The climate in Dunellen →
Dunellen and its neighbors
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 |
|---|---|---|---|---|---|
| Dunellen | 5% | 0.8 | 5 | 99%+ | A− |
| Green Brook Township | 5% | 0.2 | 24 | 85% | B |
| Middlesex | 1% | 0.2 | 13 | 99%+ | B |
| Piscataway Township | 3% | 0.7 | 20 | 93% | B+ |
| Plainfield | 7% | 0.3 | 5 | 99% | B |
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Dunellen
Where can I hike in Dunellen?
The longest trail networks: Columbia Park, 0.7 miles; Washington Park, 0.2 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Dunellen is conserved land?
5% of its land, against a typical 11% for a New Jersey town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Dunellen’s trails?
Columbia Park and McCoy Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Dunellen?
26,869 acres of parks and open public land lie inside Dunellen or within 10 miles of it (PAD-US), 41 of them inside the town line.
How much outdoors does Dunellen have?
Ahead of 75% of U.S. towns on the Outdoors grade, #309 of 468 in New Jersey. 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 Dunellen 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 →