Sussex County, New Jersey
Sussex County, New Jersey, has 148,063 residents (July 2025 estimate). Its county seat is Newton. It uses Eastern Time and covers 518 sq mi (1,343 km²) of land.
- Resident population, July 2025
- 148,063
- Land area
- 518 sq mi (1,343 km²)
- County seat or government
- Newton
- Time zone
- Eastern TimeUTC-05:00 in January; UTC-04:00 in July
- Median household income
- $116,186 ± $2,466
- Median home value
- $369,400 ± $4,606
- Median rent, with utilities
- $1,585 ± $67
- Homes lived in by their owners
- 83.7% ± 0.9 points
- County type
- County
- Metro or micro area
- New York-Newark-Jersey City, NY-NJ metro areaOutlying county
- Water area
- 16.9 sq mi (43.9 km²)
- State
- New Jersey
- County code (FIPS)
- 34037
- Coordinates (central point)
- 41.137461, -74.691914
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Sussex County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Eastern TimeAmerica/New_York | UTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 0786026,047 people
- 0787121,437 people
- 0746118,731 people
- 0784311,098 people
- 074199,693 people
- 078219,662 people
- 078259,210 people
- 078748,752 people
- 078498,380 people
- 074627,195 people
- 074216,977 people
- 078265,967 people
All 22
22 ZIP Code areas overlap Sussex County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Sussex County, largest first
- Vernon Township22,605 people
- Sparta Township20,077 people
- Wantage Township10,941 people
- Hardyston Township8,322 people
- Byram Township8,119 people
- Andover Township5,801 people
- Frankford Township5,322 people
- Hampton Township4,912 people
- Stillwater Township4,052 people
- Montague Township3,833 people
- Green Township3,657 people
- Fredon Township3,281 people
All 15
- Lafayette Township2,344 people
- Sandyston Township1,928 people
- Walpack Township4 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in New Jersey, by county
School districts in Sussex County, largest first
- Vernon Township School District22,605 people
- High Point Regional School District21,566 people
- Sparta Township School District20,077 people
- Wallkill Valley Regional School District18,758 people
- Lenape Valley Regional School District15,330 people
- Hopatcong Borough School District14,565 people
- Kittatinny Regional School District14,177 people
- Sussex-Wantage Regional School District13,086 people
- Newton Town School District8,369 people
- Hardyston Township School District8,322 people
- Byram Township School District8,119 people
- Andover Regional School District6,529 people
All 24
- Frankford Township School District6,136 people
- Franklin Borough School District4,968 people
- Hampton Township School District4,912 people
- Stillwater Township School District4,052 people
- Montague Township School District3,833 people
- Green Township School District3,657 people
- Stanhope Borough School District3,552 people
- Hamburg Borough School District3,308 people
- Fredon Township School District3,281 people
- Lafayette Township School District2,344 people
- Ogdensburg Borough School District2,160 people
- Sandyston-Walpack Township School District1,932 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Hopatcong, New Jersey (borough)14,565 people
- Lake Mohawk, New Jersey (CDP)9,508 people
- Newton, New Jersey (town)8,369 people
- Franklin, New Jersey (borough)4,968 people
- Highland Lakes, New Jersey (CDP)3,852 people
- Stanhope, New Jersey (borough)3,552 people
- Upper Greenwood Lake, New Jersey (CDP)3,319 people
- Hamburg, New Jersey (borough)3,308 people
- Byram Center, New Jersey (CDP)2,188 people
- Ogdensburg, New Jersey (borough)2,160 people
- Sussex, New Jersey (borough)2,145 people
- Vernon Valley, New Jersey (CDP)1,532 people
All 18
- Vernon Center, New Jersey (CDP)1,503 people
- Crandon Lakes, New Jersey (CDP)1,293 people
- Layton, New Jersey (CDP)967 people
- Branchville, New Jersey (borough)814 people
- Andover, New Jersey (borough)728 people
- Ross Corner, New Jersey (CDP)24 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Morris County, New Jersey21 mi south
- Passaic County, New Jersey22 mi east
- Pike County, Pennsylvania22 mi northwest
- Warren County, New Jersey26 mi southwest
- Orange County, New York27 mi northeast
- Monroe County, Pennsylvania34 mi west
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.