Morris County Population

1790–2026

527.15K

2026 projection

3.7% since 2020 (increase)

0100K200K300K400K500K600K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Morris County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026527,147+2,8960.55%
2025524,251+2,8960.56%
2024521,355+4,4530.86%
2023516,902+5,0420.99%
2022511,860+1,6200.32%
2021510,240+2,0290.40%
2020508,211+16,6343.38%
2019491,577-1,5070.31%
2018493,084-9100.18%
2017493,994+1630.03%

Showing 10 of 38 years.

Morris County Demographics

42.6median age

Median age

Female43.8 yrs
Male41.5 yrs

Adults

408,317
93,627 seniors (65+) · 23% of adults314,690 other adults

Sex

Female 50.4% · 259,484Male 49.6% · 255,044

Population by age

MaleFemale85+ years, male: 5,10685+ years, female: 8,04280–84 years, male: 4,57780–84 years, female: 6,66175–79 years, male: 7,35775–79 years, female: 9,58870–74 years, male: 11,19670–74 years, female: 12,10765–69 years, male: 13,77165–69 years, female: 15,22260–64 years, male: 18,11360–64 years, female: 18,64455–59 years, male: 20,00555–59 years, female: 19,81850–54 years, male: 18,71750–54 years, female: 18,94545–49 years, male: 16,57245–49 years, female: 16,75740–44 years, male: 16,79540–44 years, female: 16,07835–39 years, male: 17,16035–39 years, female: 17,15530–34 years, male: 15,24130–34 years, female: 14,78025–29 years, male: 14,43625–29 years, female: 13,69820–24 years, male: 15,00520–24 years, female: 14,85815–19 years, male: 16,82915–19 years, female: 15,69010–14 years, male: 16,24310–14 years, female: 14,8775–9 years, male: 14,5885–9 years, female: 14,0330–4 years, male: 13,3330–4 years, female: 12,53185+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K15K15K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 5,145 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Morris County Income

$137,326median household income

Median household income

$137,326

Half of households earn more, half earn less

Median earnings

$79,901

Typical yearly pay for a worker 25 or older.

Poverty rate

4.9%

About 1 in 20 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Morris County Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%59%54%
Never married30%32%28%
Divorced8%6%10%
Widowed5%2%8%
Separated<1%1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year