Population
651,035
2025
+1.3% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Monmouth County, NJ: population growth, jobs and income
Monmouth County gained 2,362 residents between 2024 and 2025 (+0.4%).
Monmouth County had an estimated 651,035 residents in 2025, up 1.3% (8,650 more people) since 2020. That is slower than New Jersey as a whole (+3.0%), and the 20th fastest growth of 21 counties in New Jersey.
Data as of 2025 · updated
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In the Monmouth County report
One-time $99 PDF: everything on this page for Monmouth County, ranked against New Jersey and the U.S., plus these figures that are not on the free page:
- Median gross rent$1,827/mo2020–24
- Vacant homes, incl. seasonal and second homes6.9%2020–24
- New homes permitted, last 12 months2,5322025-10/2026-09
- 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 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
+447
2025
0.7 per 1,000 residents
−3,165 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
Unemployment rate
4.7%
2025
+1.5 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
2,138
2025
−9.0% since 2021
3.3 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$124,845
2020–24
+20.6% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
257,734
2023
+5.7% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 447 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 257,734 paid employees in mid-March 2023, +5.7% since 2018 (County Business Patterns).
Unemployment averaged 4.7% in 2025, 1.5 points higher than in 2019 (before the pandemic).
Builders were authorized to start 2,138 new homes in 2025, or 3.3 per 1,000 residents.
Median household income was $124,845 in the 2020–24 American Community Survey, +20.6% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 1,471st.
Part of the New York-Newark-Jersey City, NY-NJ metro area.
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Monmouth County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 651,035 | +2,362 |
| 2024 | 648,673 | +2,877 |
| 2023 | 645,796 | +770 |
| 2022 | 645,026 | −847 |
| 2021 | 645,873 | +3,488 |
| 2020 | 642,385 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Monmouth County
Monmouth County grew by 8,650 people since 2020 even though 3,165 more residents moved to other U.S. counties than came from them: births outnumbered deaths by 1,546, and net international migration added 10,123.
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +715 | +1,546 | |
| International migrationfrom and to other countries | +1,196 | +10,123 | |
| Domestic migrationfrom and to other U.S. counties | +447 | −3,165 | |
| Census adjustmentbalancing residual | +4 | +146 | |
| Total change | +2,362 | +8,650 |
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
| Measure | In New Jersey | Among U.S. counties |
|---|---|---|
| Population growth | 20th of 21 | 1,471st of 3,107 |
| Net domestic migration per 1,000 residents | 9th of 21 | 1,794th of 3,108 |
| Private-sector job growth | 7th of 21 | 1,132nd of 3,092 |
| Median household income | 5th of 21 | 43rd of 3,107 |
| Lowest unemployment rate | 6th of 21 | 2,314th of 3,108 |
| New homes permitted per 1,000 residents | 7th of 21 | 1,027th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
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The County Growth and Demographics Report for Monmouth 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, Monmouth County's population change (+1.3%) was ahead of 2 of its 6 neighbouring counties and behind 4.
Its median household income ($124,845, 2020–24) is higher than in all 6 of its neighbouring counties.
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Monmouth County, NJ This county | 651,035 | +1.3% | 0.7 | 3.3 | $124,845 |
| Middlesex County, NJ | 883,335 | +2.6% | −9.2 | 1.7 | $111,549 |
| Richmond County, NY | 501,290 | +1.2% | −1.8 | 1.0 | $98,333 |
| Ocean County, NJ | 673,746 | +5.6% | 2.3 | 4.2 | $89,863 |
| Mercer County, NJ | 399,289 | +3.3% | −5.6 | 2.9 | $100,645 |
| Queens County, NY | 2,358,182 | −1.1% | −16.3 | 1.4 | $86,136 |
| Burlington County, NJ | 481,439 | +4.3% | 5.3 | 3.4 | $108,111 |
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.
Questions
Is Monmouth County growing?
Yes. Its population grew 1.3% between 2020 and 2025, about 8,650 more people (Census Bureau population estimates). New Jersey as a whole changed +3.0% over the same years. That ranks 20th of 21 counties in New Jersey for population growth.
How many people moved to Monmouth County?
On net, about 447 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 Monmouth County?
It averaged 4.7% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of Monmouth County?
About 651,035 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in Monmouth County?
Private employers there had 257,734 paid employees in mid-March 2023, +5.7% 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.
Monmouth County data alerts
Email me when Monmouth County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
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.