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Sussex County, New Jersey Demographics 2026

Sussex County, New Jersey has a population of 145,807, the 17th most populous county in New Jersey. The median household income is $116,186 and the median home value is $369,400. The poverty rate is 5.5%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Sussex County Quick Facts

Population 145,807
Median Household Income $116,186
Median Home Value $369,400
Poverty Rate 5.5%
Unemployment Rate 5.1%
Median Age 43.8 years
Homeownership Rate 83.7%
Affordability Ratio 3.2x
Bachelor's Degree+ 40.3%
High School Graduation 95.4%
Cities/Places 17
Population 145,807 17th of 21
Median Income $116,186 12% higher than state
Poverty Rate 5.5%
Unemployment 5.1%

How Sussex County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population145,117145,807+0.5%
Median household income$114,316$116,186+1.6%
Median home value$342,800$369,400+7.8%

Economy & Housing

Household Income Distribution

Under $25K 7.4%
$25K-$50K 10.0%
$50K-$100K 25.2%
$100K+ 57.3%
Detailed income brackets
Under $10K
2.8%
$10K-$15K
1.2%
$15K-$20K
1.4%
$20K-$25K
2.0%
$25K-$30K
2.0%
$30K-$35K
2.0%
$35K-$40K
1.9%
$40K-$45K
2.0%
$45K-$50K
2.1%
$50K-$60K
4.1%
$60K-$75K
8.0%
$75K-$100K
13.2%
$100K-$125K
11.4%
$125K-$150K
10.2%
$150K-$200K
14.9%
$200K+
20.8%

Employment

5.1% Unemployment Rate State: 6.3%|National: 5.2%
68.3% Labor Force Participation

Housing Overview

Owner 83.7%
Renter 16.3%
Affordability Index Affordable
3.2x home value to income ratio
Median gross rent $1,585/mo 16.4% of median household income annually

People & Demographics

Diversity Index

35out of 100
Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 66 | National average: 61

Education

Cities & Places in Sussex County

CityPopulationMedian IncomePovertyHome Value
Hopatcong14,565$115,7584.2%$340,700
Lake Mohawk9,508$149,1352.1%$441,700
Newton8,369$76,22115.1%$302,700
Franklin4,968$92,7448.0%$272,600
Highland Lakes3,852$109,0002.7%$295,300
Stanhope3,552$139,2052.9%$376,700
Hamburg3,308$86,9753.4%$280,900
Byram Center2,188$132,8570.6%$366,900
Ogdensburg2,160$105,5517.0%$324,500
Sussex2,145$75,50010.3%$275,500
Vernon Valley1,532$121,2505.2%$373,500
Vernon Center1,503$74,3386.7%$173,500
Crandon Lakes1,293$94,1674.0%$284,300
Layton967$130,3130.0%$376,300
Branchville814$126,4582.7%$381,800
Andover728$92,7504.5%$400,000
Ross Corner24N/A0.0%N/A

Population Overview

Sussex County is located in New Jersey with a total population of 145,807. It is the 17th most populous county out of 21 in New Jersey. The county encompasses 17 Census-designated places.

Age Demographics

The median age in Sussex County is 43.8 years. This is 9% higher than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Sussex County is $116,186. This is 12% higher than the state median of $103,556. It is also 44% higher than the national median of $80,734. The poverty rate stands at 5.5%. This is 43% lower than the state poverty rate of 9.7%. The unemployment rate is 5.1%. This is 19% lower than the state rate of 6.3%. The median home value is $369,400. Housing costs are 19% lower than the state median of $454,400. The home-value-to-income ratio is 3.2x. 83.7% of occupied housing units are owner-occupied. This homeownership rate is 31% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Sussex County is White (non-Hispanic), making up 79.7% of the population. Hispanic or Latino residents account for 11.9%. The White (non-Hispanic) population is significantly higher than the state average (79.7% vs 50.9%). The Black or African American population (1.7%) is well below the state average of 12.2%. The Asian population (2.0%) is well below the state average of 10.1%.

Education

40.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 8% lower than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.4%.

Data Sources & Methodology

All figures for Sussex County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against New Jersey and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Sussex County, New Jersey?

Sussex County has a population of 145,807, making it the 17th most populous county in New Jersey.

What is the median income in Sussex County?

The median household income in Sussex County is $116,186 with a poverty rate of 5.5%.

How many cities are in Sussex County, New Jersey?

Sussex County contains 17 Census-designated places.