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
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.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 145,117 | 145,807 | +0.5% |
| Median household income | $114,316 | $116,186 | +1.6% |
| Median home value | $342,800 | $369,400 | +7.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 66 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Sussex County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Hopatcong | 14,565 | $115,758 | 4.2% | $340,700 |
| Lake Mohawk | 9,508 | $149,135 | 2.1% | $441,700 |
| Newton | 8,369 | $76,221 | 15.1% | $302,700 |
| Franklin | 4,968 | $92,744 | 8.0% | $272,600 |
| Highland Lakes | 3,852 | $109,000 | 2.7% | $295,300 |
| Stanhope | 3,552 | $139,205 | 2.9% | $376,700 |
| Hamburg | 3,308 | $86,975 | 3.4% | $280,900 |
| Byram Center | 2,188 | $132,857 | 0.6% | $366,900 |
| Ogdensburg | 2,160 | $105,551 | 7.0% | $324,500 |
| Sussex | 2,145 | $75,500 | 10.3% | $275,500 |
| Vernon Valley | 1,532 | $121,250 | 5.2% | $373,500 |
| Vernon Center | 1,503 | $74,338 | 6.7% | $173,500 |
| Crandon Lakes | 1,293 | $94,167 | 4.0% | $284,300 |
| Layton | 967 | $130,313 | 0.0% | $376,300 |
| Branchville | 814 | $126,458 | 2.7% | $381,800 |
| Andover | 728 | $92,750 | 4.5% | $400,000 |
| Ross Corner | 24 | N/A | 0.0% | N/A |
Explore New Jersey Rankings
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.