Sussex County, NJ — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
145,117
Male
72,876
50.2%
Female
72,241
49.8%
Median Age
44.1 yrs
Avg Household Size
2.5
Foreign Born
8.6%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher29.1%
High School or Higher49.3%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
4.0%
Disability
0.0%
Non-English Home
3.3%
Married
48.0%
Sussex County, NJ has a population of 145,117 according to 2023 Census Bureau estimates. The median age is 44.1 years. The largest racial or ethnic group is White at 84.8% of the population. 29.1% of residents hold a bachelor's degree or higher. 8.6% of residents are foreign-born.