Cumberland County, New Jersey

Cumberland County population, land area and income

Cumberland County had 155,678 residents in the Census Vintage 2024 estimate, on 483.4 square miles of land. It ranks 16th of 21 in New Jersey by population and 5th by land area. That works out to 322.1 people per square mile, 3.3 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in New Jersey has 475,515 residents, so Cumberland County has 33% of the typical county's population.

Its SAIPE 2023 median household income of $64,240 is above the national county median among 3,143 counties with an estimate.

How Cumberland County's population changed since 2020

Cumberland County gained 1,954 residents between the July 2020 and July 2024 estimates, a rise of 1.3%. That ranks 18th of 21 in New Jersey for growth. The median New Jersey county changed by +2.3%, and the state as a whole by +2.5%.

Since the April 2020 estimates base, Cumberland County recorded 7,698 births and 7,764 deaths, a natural change of -66. Net international migration added +3,274 and net domestic migration, people moving to or from other US counties, came to -1,642. The largest single component was international migration, which added 3,274 people.

Where Cumberland County is

The Census internal point of Cumberland County is at 39.328400, -75.121600. It sits in UTM zone 18N. The map shades New Jersey's 21 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Cumberland County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Cumberland County

3 incorporated places of 1,000+ people have residents in Cumberland County, 117,630 people together, or 76% of the county. Each figure counts only the part of the town inside Cumberland County; towns marked "part" extend into another county. The largest is Vineland with 62,070.

Counties bordering Cumberland County

The Census 2024 county adjacency file lists 5 neighbors for Cumberland County, including 1 across a state line. The most populous is Gloucester County, NJ, with 311,783 residents. Distances run between Census internal points in a straight line.

• Gloucester County

  311,783 people

  27 mi N

• Atlantic County

  279,114 people

  28 mi ENE

• DE

  Kent County, DE

  192,690 people

  26 mi SW

• Cape May County

  93,875 people

  22 mi SE

• Salem County

  65,874 people

  21 mi NW

Distance to Trenton and the nearest big city

Trenton is 64.7 miles NNE of Cumberland County's internal point in a straight line. The nearest place of 100,000 or more is Philadelphia, PA (population 1,573,916), 47.0 miles away. The nearest place of 10,000 or more is Millville, NJ (population 27,838), 5.5 miles away.

Cumberland County FIPS code

The FIPS code of Cumberland County is 34011: state code 34 for New Jersey plus county code 011. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $64,240.