County · New Jersey
Sussex County, New Jersey
Sussex County, New Jersey. Sussex County had 148,063 residents in 2025 by the Census Bureau's estimate, up 2.7% since 2020, in line with New Jersey (+2.8%). It holds 33 places (9 cities, villages and boroughs, 15 towns and townships and 9 census-designated) and 42 census tracts. GEOID 34037.
Sussex County is one of the 22 counties of the New York-Newark-Jersey City, NY-NJ metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
148,063
Census Bureau estimate (no margin published)
2020 Census count: 144,221 · ACS 2020-2024: 145,807
Median household income
$116,186
±$2,466 (90% margin)
New Jersey: $103,556
Median home value
$369,400
±$4,606 (90% margin)
New Jersey: $454,400
Median gross rent
$1,585
±$67 (90% margin)
New Jersey: $1,720
How many people live in Sussex County, and is it growing?
The 2020 Census counted 144,221 residents in Sussex County. The Census Bureau estimates 148,063 for July 1, 2025, up 2.7% since 2020, in line with New Jersey (+2.8%). The 2020-2024 American Community Survey puts the population at 145,807 over 518 square miles of land.
| Measure | Sussex County | New Jersey | Change since 2015-2019 |
|---|---|---|---|
| Total population | 145,807 | 9,343,809 | +4,324 |
| Households | 57,767±572 | 3,507,701 | +4,445 |
| Average household size | 2.50±0.02 | 2.62 | −0.11 |
| Housing units | 62,865±76 | 3,791,354 | +447 |
Sussex County's population since 2000
From 144,166 in 2000 to 148,063 in 2025: up 2.7%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Sussex County?
Sussex County holds 33 places: 9 cities, villages and boroughs (incorporated places), 15 towns and townships (county subdivisions with their own government) and 9 census-designated places. The largest is Vernon Township with 22,965 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Vernon Township | 22,358 | $115,873 |
|---|---|---|
| Sparta Township | 19,600 | $167,963 |
| Hopatcong | 14,362 | $115,758 |
| Wantage Township | 10,811 | $99,599 |
| Lake Mohawk | 9,759 | $149,135 |
| Newton | 8,374 | $76,221 |
| Hardyston Township | 8,125 | $120,392 |
| Byram Township | 8,028 | $138,854 |
| Andover Township | 5,996 | $142,225 |
| Frankford Township | 5,302 | $117,286 |
| Franklin | 4,912 | $92,744 |
| Hampton Township | 4,893 | $109,676 |
| Highland Lakes | 4,816 | $109,000 |
| Stillwater Township | 4,004 | $123,134 |
| Montague Township | 3,792 | $101,250 |
| Green Township | 3,627 | $141,875 |
| Stanhope | 3,526 | $139,205 |
| Hamburg | 3,266 | $86,975 |
| Fredon Township | 3,235 | $142,903 |
| Lafayette Township | 2,358 | $129,038 |
| Ogdensburg | 2,258 | $105,551 |
| Byram Center | 2,232 | $132,857 |
| Sussex | 2,024 | $75,500 |
| Sandyston Township | 1,977 | $104,219 |
| Vernon Center | 1,743 | $74,338 |
| Vernon ValleyGEOID 3475750 | 1,491 | $121,250 |
| Crandon LakesGEOID 3415610 | 1,120 | $94,167 |
| Branchville | 791 | $126,458 |
| LaytonGEOID 3439600 | 692 | $130,313 |
| Andover | 595 | $92,750 |
| Ross CornerGEOID 3464860 | 120 | not published |
| Upper Greenwood Lake | 3,687 | $111,466 |
| Walpack TownshipGEOID 3403776640 | 7 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Sussex County?
The median resident of Sussex County is 43.8 years old; 19.5% are under 18 and 19.0% are 65 or older. The largest group is non-Hispanic white residents at 79.7%, then Hispanic or Latino residents (of any race) at 11.9%. 8.7% of residents were born outside the United States.
| Measure | Sussex County | New Jersey | Change since 2015-2019 |
|---|---|---|---|
| Median age | 43.8±0.2 | 40.1 | −0.9 |
| Under 18 years | 19.5% | 21.8% | – |
| 65 years and over | 19.0% | 17.2% | – |
| Hispanic or Latino (any race) | 11.9% | 22.5% | +3.7 pts |
| White alone, not Hispanic | 79.7%±0.4 pts | 50.9% | −6.6 pts |
| Black or African American alone, not Hispanic | 1.7%±0.2 pts | 12.2% | −0.4 pts |
| Asian alone, not Hispanic | 2.0%±0.2 pts | 10.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.0%±0.5 pts | 3.5% | – |
| Some other race alone, not Hispanic | 0.6%±0.2 pts | 0.8% | – |
| Born outside the United States | 8.7%±0.6 pts | 23.9% | +1.1 pts |
| Speak a language other than English at home (age 5+) | 12.2%±0.7 pts | 33.1% | – |
| Civilian veterans (age 18+) | 4.8%±0.4 pts | 3.7% | – |
| With a disability | 11.7%±0.7 pts | 10.8% | – |
| No health insurance coverage | 3.8%±0.4 pts | 7.5% | no clear change |
| High school graduate or higher (age 25+) | 95.4%±0.4 pts | 90.7% | – |
| Bachelor's degree or higher (age 25+) | 40.3%±1.1 pts | 43.6% | +4.2 pts |
| Graduate or professional degree (age 25+) | 14.5%±0.8 pts | 17.6% | – |
| Moved from another state in the past year | 1.5%±0.4 pts | 1.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Sussex County earn?
Half of Sussex County's 57,767 households earn less than $116,186 a year (±$2,466), against $103,556 in New Jersey. In 2015-2019 it was $116,325 in 2024 dollars; the margins of error cannot tell the two periods apart. 5.5% of residents live below the poverty line.
| Measure | Sussex County | New Jersey | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $116,186±$2,466 | $103,556 | no clear change |
| Mean household income | $144,531±$4,349 | $143,363 | – |
| Per capita income | $57,252±$1,610 | $54,253 | +$2,206 |
| People below the poverty line | 5.5%±0.7 pts | 9.7% | no clear change |
| Children under 18 below the poverty line | 7.3%±1.9 pts | 13.0% | no clear change |
| Households receiving SNAP | 3.1%±0.5 pts | 9.1% | – |
| Households with a broadband subscription | 94.5%±0.7 pts | 92.8% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Sussex County?
Owners occupy 83.7% of Sussex County's occupied homes and renters 16.3%. The median owner-occupied home is valued at $369,400 by its owner (±$4,606). The median renter pays $1,585 a month including utilities, and 46.0% of renters pay 35% or more of their income on rent.
| Measure | Sussex County | New Jersey | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $369,400±$4,606 | $454,400 | +$40,189 |
| Median gross rent | $1,585±$67 | $1,720 | no clear change |
| Renters paying 35% or more of income on rent | 46.0%±4.1 pts | 42.7% | +7.3 pts |
| Median monthly owner costs, with a mortgage | $2,473±$39 | $2,829 | – |
| Owner-occupied homes | 83.7%±1.0 pts | 63.8% | no clear change |
| Housing units | 62,865±76 | 3,791,354 | +447 |
| Homeowner vacancy rate | 0.9%±0.3 pts | 0.7% | – |
| Rental vacancy rate | 4.4%±1.8 pts | 3.5% | – |
| Single-family detached homes | 78.0%±1.1 pts | 52.6% | – |
| Mobile homes | 1.7%±0.4 pts | 0.9% | – |
| Built 2020 or later | 0.7%±0.2 pts | 1.1% | – |
| Built 1939 or earlier | 14.1%±1.2 pts | 17.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Sussex County building?
Builders took permits for 96 new housing units across Sussex County in 2025 (64 single-family), 0.6 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Sussex County get to work?
76.3% of Sussex County's workers drive alone and 14.9% work from home. The average trip to work takes 36.3 minutes. The unemployment rate in 2020-2024 averaged 5.1%.
| Measure | Sussex County | New Jersey | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.3%±0.8 pts | 66.4% | – |
| Unemployment rate | 5.1%±0.6 pts | 6.3% | no clear change |
| Drove alone to work | 76.3%±1.2 pts | 62.2% | – |
| Carpooled | 6.2%±0.7 pts | 7.7% | – |
| Public transportation | 0.9%±0.3 pts | 8.1% | – |
| Walked | 0.8%±0.3 pts | 2.6% | – |
| Worked from home | 14.9%±1.1 pts | 16.8% | +9.4 pts |
| Mean travel time to work | 36.3 min±0.8 | 30.5 min | −1.5 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Sussex County's census tracts?
Sussex County is divided into 42 census tracts. Among those with a reliable estimate, median household income runs from $64,619 (Tract 3737) to $211,065 (Tract 3732).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Sussex County compare with New Jersey's other counties?
| Measure | Rank |
|---|---|
| Population | 17th of 21 |
| Growth 2020-2025 | 10th of 21 |
| Residents per square mile | 20th of 21 |
| Median household income | 6th of 21 |
| Median home value | 14th of 21 |
| Median gross rent | 13th of 21 |
| Poverty rate | 18th of 21 |
| Bachelor's degree or higher | 10th of 21 |
| Median age | 4th of 21 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Sussex County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.