Morris County's 2026 population is estimated at 533,683, reflecting a 1.01% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Morris County is the 10th largest county in New Jersey. The 2010 population was 492,623 and has grown 8.33% since 2010.
Data after 2023 is projected based on recent change
Overall: 42.6 years
Female: 43.8 years
Male: 41.5 years
There are 408,317 adults, (93,627 of whom are seniors) in Morris County.
Female: 259,484 (50.4%)
Male: 255,044 (49.6%)
The racial composition of Morris County includes 68.26% White, 10.78% Asian, 5.6% other race, 3.26% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 351,230 | 68.26% |
| Two or more races | 61,467 | 11.95% |
| Asian | 55,451 | 10.78% |
| Other race | 28,802 | 5.6% |
| Black or African American | 16,796 | 3.26% |
| Native American | 719 | 0.14% |
| Native Hawaiian or Pacific Islander | 63 | 0.01% |
Morris County 's average per capita income is $79,901. Household income levels show a median of $137,326. The poverty rate stands at 4.92%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $188,136 | $238,684 |
| Families | $169,844 | $220,505 |
| Households | $137,326 | $186,467 |
| Non Families | $75,865 | $99,980 |
Average Income
Median Household Income
Poverty Rate