Photo: Iracaz · CC BY-SA 3.097% of residents live within a half mile of a park in Port Jefferson
33 acres are parks and preserves, 4.0 per 1,000 residents. 2% of Port Jefferson’s land is conserved, about 35 acres. 1.2 miles of mapped trail cross Port Jefferson, 0.4 per square mile of land.
Ahead of 51% of U.S. towns · #539 of 758 in New York. What drives it
What kind of outdoors town is Port Jefferson?
Read from the map. The page puts what stands out first.
How much outdoors does Port Jefferson have?
On conserved land, trails, park land and how close residents live to a park, Port Jefferson is ahead of 51% of U.S. towns, #539 of 758 in New York. The share of residents near a park holds the grade up; park acres per resident pull 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
Directions go to the nearest trailhead or public parking.
35 conserved acres
2% of Port Jefferson’s land. Who manages Port Jefferson’s conserved land, from the USGS Protected Areas Database. Approximate, because parcels can overlap.
Conserved doesn’t always mean open to visitors. Public access isn’t recorded for 6 of 10 parcels. The walks above are places people visit.
| Parcel (PAD-US) | Managed by | Acres | Public access |
|---|---|---|---|
| TOWN OF BROOKHAVENC/O DEPT OF FINANCE Land Local Park | Town or city | 7 | Unknown |
| Unknown Park Local Park | Town or city | 5 | Open |
| Harborfront Park Local Park | Town or city | 5 | Open |
| SUFFOLK COUNTYWATER AUTHORITY Land Local Other or Unknown | Regional Water Districts | 4 | Unknown |
| Clifton H. Lee Memorial Parkland Local Park | Town or city | 4 | Open |
| PT JEFFERSON VILLAGE OF Land Local Park | Town or city | 3 | Unknown |
| Port Jefferson Village Lands Local Park | Other or Unknown Local Government | 3 | Open |
| PT JEFFERSON VILLAGEDRAINAGE Land Local Park | Town or city | 1 | Unknown |
| BELLE TERRE VILLAGE OF(PARK) Land Local Park | Town or city | 1 | Unknown |
| PT JEFFERSON VILLAGE OFRECHARGE BASIN Land Local Park | Town or city | 1 | Unknown |
7 places to go in Port Jefferson
Beaches, playgrounds, peaks, falls and more. Pick a kind.
2 beaches without a name on the map. Tap “Show all on map” to see them.
Plus 1 playground without a name on the map. Tap “Show all on map” to see it.
Plus 2 boat launches without a name on the map.
1 lakes & rivers
0.6 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 Port Jefferson: May to September
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 | 10.6 | 11.8 | 13.3 | 14.5 | 15.1 | 14.8 | 13.8 | 12.4 | 11.0 | 9.8 | 9.2 |
| High (°F) | 39 | 41 | 48 | 59 | 68 | 77 | 83 | 82 | 75 | 64 | 54 | 44 |
| Rain (in) | 3.6 | 3.2 | 4.5 | 4.2 | 3.6 | 4.1 | 3.4 | 3.8 | 4.0 | 4.4 | 3.6 | 4.6 |
February is the driest month (3.2 in) and July the warmest (highs of 83 °F). 4.6 inches fall in December, the wettest month. The climate in Port Jefferson →
Port Jefferson 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 |
|---|---|---|---|---|---|
| Port Jefferson | 2% | 0.4 | 4 | 97% | B− |
| Mount Sinai | — not graded: under 1,000 residents or part of its town | ||||
| Belle Terre | — not graded: under 1,000 residents or part of its town | ||||
| East Setauket | — not graded: under 1,000 residents or part of its town | ||||
| Port Jefferson Station | — 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 Port Jefferson
How much of Port Jefferson is conserved land?
2% of its land, against a typical 5% for a New York town and 4% nationally (PAD-US). Conserved doesn’t always mean open to visitors: easements are usually private land.
Are dogs allowed on Port Jefferson’s trails?
Joe Erland Field and Harborfront Park don’t have dog rules recorded on the map; check the signs at the trailhead.
Where can I bike in Port Jefferson?
0.6 miles of bike routes are on the map: 0.6 of painted or protected lanes and 0.1 of off-road paths.
Is there public land near Port Jefferson?
18,725 acres of parks and open public land lie inside Port Jefferson or within 10 miles of it (PAD-US), 33 of them inside the town line.
How much outdoors does Port Jefferson have?
Ahead of 51% of U.S. towns on the Outdoors grade, #539 of 758 in New York. 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 Port Jefferson 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 →