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Sussex County, NJ: population growth, jobs and income

Sussex County gained 618 residents between 2024 and 2025 (+0.4%).

Sussex County had an estimated 148,063 residents in 2025, up 2.9% (4,186 more people) since 2020. That is slower than New Jersey as a whole (+3.0%), and the 10th fastest growth of 21 counties in New Jersey.

Data as of 2025 · updated

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In the Sussex County report

One-time $99 PDF: everything on this page for Sussex County, ranked against New Jersey and the U.S., plus these figures that are not on the free page:

  • Median gross rent$1,585/mo2020–24
  • Vacant homes, incl. seasonal and second homes8.1%2020–24
  • New homes permitted, last 12 months1772025-10/2026-09
  • Rent growth, 5 yearsIn the report
  • Permits in 5+ unit buildingsIn the report
  • IRS income moving in (net AGI)In the report
  • Neighbouring-county comparison tableIn the report

What's inside: 5 pages

  1. 1 Summary, headline numbers and ranks (free preview)
  2. 2 Ranks and the neighbouring-county table
  3. 3 Migration, with IRS mover and income flows
  4. 4 Rent, vacant homes, permits and employers
  5. 5 Every source and the methods
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Headline numbers

What the numbers say

Net domestic migration added 419 people in 2025: more people moved in from other U.S. counties than moved out.

Private employers had 32,211 paid employees in mid-March 2023, +1.9% since 2018 (County Business Patterns).

Unemployment averaged 5.0% in 2025, 1.7 points higher than in 2019 (before the pandemic).

Builders were authorized to start 96 new homes in 2025, or 0.6 per 1,000 residents.

Median household income was $116,186 in the 2020–24 American Community Survey, +20.7% since 2016–20.

Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 1,005th.

Part of the New York-Newark-Jersey City, NY-NJ metro area.

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Sussex County population by year

Resident population, July 1 estimate (Census Bureau)
YearPopulationChange
2025148,063+618
2024147,445+1,117
2023146,328+660
2022145,668−38
2021145,706+1,829
2020143,877–

Census Bureau population estimates, July 1 of each year.

What drove the change in Sussex County

Sussex County grew by 4,186 people since 2020; the largest part came from domestic migration (+3,321).

Components of population change, people (Census Bureau)
Component20252020–25Share
Natural changebirths minus deaths+107+129
International migrationfrom and to other countries+92+878
Domestic migrationfrom and to other U.S. counties+419+3,321
Census adjustmentbalancing residual+0−142
Total change+618+4,186

Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.

How it ranks

MeasureIn New JerseyAmong U.S. counties
Population growth10th of 211,005th of 3,107
Net domestic migration per 1,000 residents6th of 211,424th of 3,108
Private-sector job growth14th of 211,613th of 3,092
Median household income6th of 2166th of 3,107
Lowest unemployment rate8th of 212,528th of 3,108
New homes permitted per 1,000 residents21st of 212,319th of 3,005

1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.

Get the county report — $99

The County Growth and Demographics Report for Sussex County, NJ as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.

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Neighbouring counties

Over 2020–25, Sussex County's population change (+2.9%) was ahead of 2 of its 6 neighbouring counties and behind 4.

Only Morris County had a higher median household income (2020–24) among its 6 neighbouring counties; Sussex County's was $116,186.

Sussex County, NJ and its 6 neighbouring counties: public federal figures
CountyPopulation2025Population change2020–25Net domestic migration per 1,000 residents2025Homes permitted per 1,000 residents2025Median household income2020–24
Sussex County, NJ This county148,063+2.9%2.80.6$116,186
Morris County, NJ524,251+3.2%0.12.5$137,326
Warren County, NJ112,953+3.2%3.63.0$100,869
Pike County, PA62,808+7.2%11.82.7$81,323
Passaic County, NJ531,624+1.6%−11.31.1$87,522
Orange County, NY417,669+4.2%−3.44.0$97,178
Monroe County, PA167,179−0.7%3.41.5$83,565

Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.

All 21 New Jersey counties · Every state

Questions

Is Sussex County growing?

Yes. Its population grew 2.9% between 2020 and 2025, about 4,186 more people (Census Bureau population estimates). New Jersey as a whole changed +3.0% over the same years. That ranks 10th of 21 counties in New Jersey for population growth.

How many people moved to Sussex County?

On net, about 419 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).

What is the unemployment rate in Sussex County?

It averaged 5.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).

What is the population of Sussex County?

About 148,063 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.

How many jobs are in Sussex County?

Private employers there had 32,211 paid employees in mid-March 2023, +1.9% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).

What Beacon CRE covers in New Jersey

Map, parcel and listing layers cover North and South Carolina only for now. This page and the other New Jersey county pages carry the public federal growth figures.

Sussex County data alerts

Email me when Sussex County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.

We use your address only to email you when new data for Sussex County is out: what changed, with a link to that county's report. No newsletter, no other sales emails. Delete it any time with the link in every email. We'll email you a link to confirm first; nothing starts until you click it. Privacy notice.

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.

Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.