Sussex County Map, New Jersey

Written and Fact-checked by | Updated On: April 28, 2026 | 15:25 ET

Map of Sussex County - Sussex County is a county located in the U.S. state of New Jersey. Sussex County Map showing cities, highways, important places and water bodies. Get Where is Sussex County located in the map, major cities in Sussex county, population, areas, and places of interest.

Map of Sussex County, New Jersey

Map of Sussex County, New Jersey

About Sussex County Map, Alabama: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Map of Sussex County, New Jersey

Sussex County is a county located in the U.S. state of New Jersey. It's county seat is Newton. As per 2020 census, the population of Sussex County is 145543 people and population density is 279.35 square miles. According to the United States Census Bureau, the county has a total area of 521 sq mi (1,349 km2). Sussex County was established on 1753.

Sussex County Facts

ContinentNorth America
CountryUnited States
StateNew Jersey
County SeatNewton
Largest City/TownVernon Township
Established1753
Total Area535 sq mi
Land Area519 sq mi
Water Area16 sq mi
Population144,221 (Census 2020)
Population Density278 people per sq mi
Time ZoneEastern (EST)
Major HighwaysUS-206, NJ-15, NJ-23, I-80
Neighboring CountiesWarren County, Morris County, Passaic County, Orange County (NY), Pike County (PA)
Famous ForMountains, lakes, outdoor recreation, rural landscapes
Top AttractionsHigh Point State Park, Delaware Water Gap, Mountain Creek Resort
Official Websitehttps://www.sussex.nj.us

Cities and Towns in Sussex County, New Jersey

  • Newton (county seat) – 8,374 (Census 2020)
  • Vernon Township – 22,358 (Census 2020)
  • Sparta Township – 19,722 (Census 2020)
  • Hopatcong – 14,548 (Census 2020)

Roads and Highways in Sussex County, New Jersey

Sussex County is connected by key highways that provide access to North Jersey, Pennsylvania, and New York.

  • U.S. Route 206 (US-206) – Runs north-south connecting the county to central New Jersey and Pennsylvania
  • New Jersey Route 15 (NJ-15) – Major route linking Sussex County to Morris County
  • New Jersey Route 23 (NJ-23) – Connects the county to Passaic County and North Jersey
  • Interstate 80 (I-80) – Runs east-west along the southern part of the county connecting to Pennsylvania and New York

Neighboring Counties of Sussex County

  • Warren County (southwest)
  • Morris County (south)
  • Passaic County (east)
  • Orange County, NY (north)
  • Pike County, PA (west)

Top Attractions in Sussex County, New Jersey

Sussex County is known for its scenic mountains, lakes, and outdoor activities.

  • High Point State Park – Home to the highest elevation in New Jersey with scenic views
  • Delaware Water Gap – Popular area for hiking, rafting, and outdoor recreation
  • Mountain Creek Resort – Ski resort and water park offering year-round activities
  • Lake Hopatcong – Largest freshwater lake in New Jersey for boating and fishing
  • Stokes State Forest – Offers camping, hiking, and scenic nature areas
  • Space Farms Zoo & Museum – Family attraction with animals and exhibits
  • Sussex County Fairgrounds – Hosts events, fairs, and agricultural shows

Distance from Sussex County to Nearby Cities

  • Newton to New York City – 60 mi (97 km)
  • Newton to Newark – 45 mi (72 km)
  • Newton to Paterson – 40 mi (64 km)
  • Newton to Philadelphia – 90 mi (145 km)
  • Newton to Scranton, PA – 70 mi (113 km)

FAQs about Sussex County

What is Sussex County known for?

Sussex County is known for its mountains, lakes, and outdoor recreation opportunities.

What is the county seat of Sussex County?

Newton is the county seat of Sussex County.

What is the largest municipality in Sussex County?

Vernon Township is the largest municipality by population.

Is Sussex County rural?

Yes, it is one of the more rural and scenic counties in New Jersey.

What outdoor activities are available in Sussex County?

Visitors can enjoy hiking, skiing, boating, fishing, and exploring parks and forests.