Hopatcong State Park
- Status
- Open (per official listing)Daily sunrise – sunset
- Entrance fee
- Not posted
- Day-use reservations
- None mentioned
- Dogs
- Not stated — check with park
- Camping
- None listed
- Official site
- dep.nj.gov(973) 398-7010
Official page last checked Oct 29, 2026. How we keep this current
Overview

Hopatcong State Park is a 1,092-acre park in Morris & Sussex Counties County, in Mount Arlington.
Visitors come for historic sites, boating, fishing, picnicking, and hiking. On the water side, there is a swimming beach and a boat ramp.
Hours
Park, gate, office and facility hours are listed separately because they often differ. Alerts above override normal hours.
| Facility | Days | Hours | Season |
|---|---|---|---|
| Park | Daily | sunrise – sunset | — |
Official wording
Open daily sunrise to sunset.
Source: official park page, checked Oct 29, 2026. Times are local to the park (America/New York).
Things to do
BoatingFishingPicnickingHikingHistoric sites and tours
Trails
| Trail | Length | Difficulty | Notes |
|---|---|---|---|
| Paved Path | 1.15 mi | Easy | Blaze: GrayHikingPaved surfaceAccessible |
| White Trail | 0.25 mi | Easy | Blaze: WhiteHikingLoose Aggregate surface |
Trail descriptions from the park
Paved Path – 1.15 mi – Easy – hiking
White Trail – 0.25 mi – Easy – hiking
Swimming
Swimming status: Off Season
Open Wednesday - Sunday
Amenities
Facilities
- Restrooms
- Showers
- Picnic areas
- Picnic shelters
- Playground
- Visitor center
- Nature center or museum
- Park or camp store
- Parking
Water
- Swimming beach
- Boat ramp
✓ listed by the park · ✕ the park says it is not available. Anything not shown here isn’t mentioned by the official source — that means unknown, not unavailable.
Getting there
- Address
- P.O. Box 8519
Landing, NJ 07850 - Nearest town
- Mount Arlington
- Coordinates
- 40.9161, -74.6641
- Phone
- (973) 398-7010
Entrances
- Park Entrance
Nearby state parks
Sources and freshness
- New Jersey State Parks, Forests & Historic Sites — park page — last checked Oct 29, 2026; page says updated Aug 22, 2026
- NJDEP Open Space (State Owned) Facility layer, filtered to LAND_MANAGER 'State Parks, Forests and Historic Sites' with a FACILITY_URL park page
- Wikidata
- USGS PAD-US 4.1 (boundary and acreage)
- Photo: Lake Hopatcong State Park NJ beach scene houses in distance.jpg — CC0 1.0 (public domain dedication), Tomwsulcer
“Last checked” is when our system last read the official source. No change has been detected since this page was first published. Hours, fees and rules can change without notice — confirm with the park before you go. Methodology