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Morris County, NJ Demographics
Morris County, NJ is the 10th most populous of 21 counties in New Jersey, with 509,308 residents across 461 square miles. That is about 1,105 people per square mile.
At the 2020 census
| Population | 509,308 |
|---|---|
| Land area | 461 sq mi |
| Density | 1,105 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Morris County compares to the US
We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: Morris County, NJ
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Morris County, NJ — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Morris County, NJ
Showing the 100 most populous of 110 — the rest are shown on the map.
Related places
Other counties nearby
Nearest counties
Metro areas containing Morris County
About this page
This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.
Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.