Photo: User:Ekem · Public domainGreen Brook Township has 170 acres of parks, 24 for every 1,000 residents
85% of residents live within a half mile of a park. 5% of Green Brook Township’s land is conserved, about 151 acres. 0.7 miles of mapped trail cross Green Brook Township, 0.2 per square mile of land.
Ahead of 64% of U.S. towns · #373 of 468 in New Jersey. What drives it
What kind of outdoors town is Green Brook Township?
Read from the map. The page puts what stands out first.
How much outdoors does Green Brook Township have?
On conserved land, trails, park land and how close residents live to a park, Green Brook Township is ahead of 64% of U.S. towns, #373 of 468 in New Jersey. The share of residents near a park holds the grade up; trail miles pull it down.
New Jersey towns conserve more land than most (a typical one, 11%; the U.S., 4%), so Green Brook Township’s 5% is ahead of 28% of New Jersey towns, while its trails per square mile lead 18% 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
Directions go to the nearest trailhead or public parking.
Arthur L. Lewis Park
Washington Rock State Park
151 conserved acres
5% of Green Brook Township’s land. Who manages Green Brook Township’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| Warrenbrook Golf Course Local Recreation Area | County | 99 | Open |
| Washington Rock State Park State Park | State natural resources | 50 | Open |
| unknown Local Park | Not recorded | 2 | Open |
| Middlesex County Park Local Park | County | 2 | Open |
4 places to go in Green Brook Township
Beaches, playgrounds, peaks, falls and more. Pick a kind.
1 playground without a name on the map. Tap “Show all on map” to see it.
Plus 1 scenic view without a name on the map.
1 named trail and 2 lakes & rivers
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.
2 places on the National Register
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.
The best walking months in Green Brook Township: 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 Green Brook Township →
Green Brook Township 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 |
|---|---|---|---|---|---|
| Green Brook Township | 5% | 0.2 | 24 | 85% | B |
| Middlesex | 1% | 0.2 | 13 | 99%+ | B |
| Dunellen | 5% | 0.8 | 5 | 99%+ | A− |
| Watchung | 3% | 0.1 | 19 | 95% | B |
| Plainfield | 7% | 0.3 | 5 | 99% | B |
| North Plainfield | 8% | 0.2 | 6 | 99%+ | B+ |
| Warren Township | 9% | 0.3 | 61 | 79% | A− |
| Martinsville | — not graded: under 1,000 residents or part of its town | ||||
The four inputs of the Outdoors grade, from the engine; shares are of land, not water.
Questions about parks and trails in Green Brook Township
Where can I hike in Green Brook Township?
The longest trail networks: Washington Rock State Park, 0.1 miles. Each one is on the map above, with directions to the nearest trailhead or parking.
How much of Green Brook Township 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 Green Brook Township’s trails?
Top of the World Park and Arthur L. Lewis Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Is there public land near Green Brook Township?
33,269 acres of parks and open public land lie inside Green Brook Township or within 10 miles of it (PAD-US), 170 of them inside the town line.
How much outdoors does Green Brook Township have?
Ahead of 64% of U.S. towns on the Outdoors grade, #373 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 Green Brook Township 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 →