Morris County, New Jersey Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 10th-largest in New Jersey
The population of Morris County, New Jersey is 510,375 as of the 2023 American Community Survey, making it the 10th-largest county in New Jersey. The median household income is $134,929, the median home value is $557,000, and the median age is 42.7.
The population of Morris County has grown 6.2% since 2010 (492,623 → 523,053), a +0.43% annualized rate.
510,375
Population
+0.43%
Annual growth
1107
People / sq mi
$134,929
Median Income
$557,000
Median Home Value
Morris County covers 461 sq mi of land at 1107.0 people per square mile.
About Morris County, NJ
What sets Morris County apart is money: median household income runs $134,929, above the US median of $78,538. With 510,375 residents, Morris County is a county in New Jersey. It is the #10-largest of all counties in New Jersey nationally.
Households here are among the highest-earning of all US counties: median income is $134,929, above the US median of $78,538. Very few residents live in poverty — 3.4%, below the national 12.4%. Housing is expensive: the median home is worth $557,000, with typical rent around $1,860.
Degree attainment is near the top of the range for US counties: 57.2% of adults 25+ hold a bachelor’s, above the 35.0% national rate. Working from home is common here: 19.6% of workers do so, above the national 14.0%, and the average commute runs about 30 minutes each way.
Taken together, the income and housing figures place Morris County firmly in the higher-cost, higher-earning tier of US counties — a profile that tends to track dense job markets and competitive housing.
Morris County Population History (2010-2024)
The county of Morris County had a population of 492,623 in 2010 and 523,053 in 2024, a 6.2% growth over 14 years. The peak was 523,053 in 2024. Average annual growth rate: 0.43%.
523,053
Population (2024)
492,623
Population (2010)
523,053
Peak (2024)
0.43%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 492,623 |
| 2011 | 494,801 |
| 2012 | 495,623 |
| 2013 | 496,050 |
| 2014 | 494,931 |
| 2015 | 494,370 |
| 2016 | 493,831 |
| 2017 | 493,994 |
| 2018 | 493,084 |
| 2019 | 491,577 |
| 2020 | 508,472 |
| 2021 | 510,691 |
| 2022 | 512,685 |
| 2023 | 517,738 |
| 2024 | 523,053 |
Race & Ethnicity
| White | 71.0% |
| Black or African American | 3.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
42.7
Median Age
50.4%
Female
49.6%
Male
17.8%
Age 65+
Age Distribution
Children (under 15): 16.8% · Seniors (65+): 17.8%
Income & Poverty
| Median household income | $134,929+$33,879 vs state |
| Mean household income | $181,402 |
| Per-capita income | $69,226 |
| Poverty rate | 3.4%-3.6% vs state |
| Unemployment rate | 3.6% |
| Employment-to-population | 64.8% |
Top Industries by Employment
The largest employment sector in Morris County is professional & business services, accounting for 22.7% of workers.
How residents commute
3.5%
Drive alone
1.7%
Carpool
68.1%
Public transit
19.6%
Work from home
30.1 min
Avg commute
Housing
$557,000+$129,400 vs state
Median home value
$1,860
Median rent
73.9%
Homeownership rate
198,611
Total housing units
96.6%
Occupied
3.4%
Vacant
26.1%
Renter-occupied
Social & access
95.3%
With health insurance
96.7%
With broadband internet
21.3%
Foreign-born
3.5%
Veterans (18+)
8.8%
With a disability
74.1%
Speak language other than English at home
Education
95.1%
High School+
57.2%
Bachelor's+
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County rankings
Common questions about Morris County, NJ
Frequently Asked Questions
Morris County, New Jersey has a population of 510,375 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 10th-largest county in New Jersey. Population density is 1107 people per square mile.
The population of Morris County has grown 6.2% since 2010 (492,623 → 523,053), a +0.43% annualized rate.
The median household income in Morris County, New Jersey is $134,929, with mean (average) household income of $181,402 and per-capita income of $69,226. 3.4% of residents live below the federal poverty level.
In Morris County, the largest racial and ethnic groups are White (71.0%), Black or African American (3.3%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Morris County, New Jersey is 42.7 years. Residents are 50.4% female and 49.6% male.
The median home value in Morris County is $557,000 and median monthly rent is $1,860. 73.9% of occupied housing units are owner-occupied. The county has 198,611 total housing units, 3.4% of which are vacant.
The largest employment sector in Morris County, New Jersey is professional, scientific, and management services, employing 22.7% of workers. The unemployment rate is 3.6%.
Newark is among the largest cities associated with Morris County, New Jersey, with a population of 307,188.
Morris County, NJ Climate
Morris County, NJ has an average annual temperature of 9.9°C (50°F) and receives about 1302 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.9°C
Avg Temp
1302
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -3° / 26° | 100 mm |
| February | -2° / 29° | 82 mm |
| March | 3° / 38° | 105 mm |
| April | 9° / 48° | 112 mm |
| May | 15° / 59° | 121 mm |
| June | 19° / 67° | 112 mm |
| July | 22° / 72° | 123 mm |
| August | 21° / 70° | 114 mm |
| September | 17° / 63° | 119 mm |
| October | 11° / 52° | 102 mm |
| November | 6° / 42° | 113 mm |
| December | 0° / 32° | 99 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Morris County, NJ
The most comfortable months to visit Morris County, NJ are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -8°C low). July is usually the wettest month.
Where to stay near Morris County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.