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What are the fastest-growing counties in New Jersey?

Ocean County (+5.6%), Union County (+4.9%) and Burlington County (+4.3%) grew fastest in New Jersey between 2020 and 2025.

New Jersey as a whole grew 3.0% between 2020 and 2025, to 9,548,215 residents.

Data as of 2025 · updated

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All 21 New Jersey counties ranked

New Jersey counties by population growth
RankCountyResidents 2025Change 2020–25Net migration per 1,000, 2025New homes per 1,000, 2025
1Ocean County673,746+5.6%2.34.2
2Union County601,863+4.9%−9.12.0
3Burlington County481,439+4.3%5.33.4
4Essex County896,379+4.2%−7.94.1
5Somerset County356,486+3.5%−3.82.1
6Gloucester County312,638+3.3%3.12.9
7Mercer County399,289+3.3%−5.62.9
8Warren County112,953+3.2%3.63.0
9Morris County524,251+3.2%0.12.5
10Sussex County148,063+2.9%2.80.6
11Middlesex County883,335+2.6%−9.21.7
12Bergen County977,026+2.4%−3.43.0
13Camden County535,799+2.4%−0.31.5
14Hunterdon County131,781+2.3%3.54.1
15Salem County66,280+2.3%6.41.2
16Cumberland County157,148+2.2%0.90.9
17Hudson County735,033+1.8%−14.34.6
18Atlantic County278,657+1.6%−1.82.7
19Passaic County531,624+1.6%−11.31.1
20Monmouth County651,035+1.3%0.73.3
21Cape May County93,390−1.7%−1.39.1

Ranked by the change in Census Bureau population estimates, 2020–2025.

Statewide totals

More county rankings for New Jersey

Metro areas

Fastest-growing metro areas in New Jersey · Fastest-growing metro areas in the U.S. · Largest metro areas in New Jersey

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Questions

Is New Jersey growing?

New Jersey as a whole grew 3.0% between 2020 and 2025, to 9,548,215 residents. Statewide figures add up its counties.

What is the fastest-growing county in New Jersey?

Ocean County, which grew 5.6% between 2020 and 2025 to 673,746 residents (Census Bureau population estimates). Union County (+4.9%) and Burlington County (+4.3%) came next.

Which New Jersey counties are losing population?

1 of the 21 ranked counties had fewer residents in 2025 than in 2020. The steepest declines: Cape May County (−1.7%).

Where are people moving in New Jersey?

For their size, Salem County (6.4 per 1,000 residents), Burlington County (5.3 per 1,000 residents) and Warren County (3.6 per 1,000 residents) drew the most net domestic migration (people moving in from other U.S. counties minus people moving out) in 2025.

Fastest-growing counties in other states

Across the U.S.

Sources and method

Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.