Hunterdon County, New Jersey

Hunterdon County population, land area and income

Hunterdon County had 131,708 residents in the Census Vintage 2024 estimate, on 427.8 square miles of land. It ranks 18th of 21 in New Jersey by population and 8th by land area. That works out to 307.8 people per square mile, 3.2 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 Hunterdon County has 28% of the typical county's population.

Its SAIPE 2023 median household income of $136,407 is in the top tenth among 3,143 counties with an estimate.

How Hunterdon County's population changed since 2020

Hunterdon County gained 2,915 residents between the July 2020 and July 2024 estimates, a rise of 2.3%. That ranks 12th 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, Hunterdon County recorded 4,609 births and 4,512 deaths, a natural change of +97. Net international migration added +1,652 and net domestic migration, people moving to or from other US counties, came to +1,034. The largest single component was international migration, which added 1,652 people.

Where Hunterdon County is

The Census internal point of Hunterdon County is at 40.565300, -74.912000. 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 Hunterdon County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Hunterdon County

10 incorporated places of 1,000+ people have residents in Hunterdon County, 24,056 people together, or 18% of the county. Each figure counts only the part of the town inside Hunterdon County; towns marked "part" extend into another county. The largest is Flemington with 4,905.

Counties bordering Hunterdon County

The Census 2024 county adjacency file lists 5 neighbors for Hunterdon County, including 1 across a state line. The most populous is Bucks County, PA, with 650,131 residents. Distances run between Census internal points in a straight line.

• PA

  Bucks County, PA

  650,131 people

  19 mi SSW

• Morris County

  523,053 people

  28 mi NE

• Mercer County

  392,138 people

  22 mi SSE

• Somerset County

  357,467 people

  15 mi E

• Warren County

  112,031 people

  21 mi NNW

Distance to Trenton and the nearest big city

Trenton is 25.2 miles SSE of Hunterdon County's internal point in a straight line. The nearest place of 100,000 or more is Allentown, PA (population 127,138), 29.8 miles away. The nearest place of 10,000 or more is Somerville, NJ (population 14,428), 16.0 miles away.

Hunterdon County FIPS code

The FIPS code of Hunterdon County is 34019: state code 34 for New Jersey plus county code 019. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $136,407.