Where is Morris County?

3 Morris Counties in 3 states · 541,732 people (2025)

There are 3 counties named Morris County in the United States, in Kansas, New Jersey and Texas. The most populous is Morris County, New Jersey (county seat: Morristown), with 524,251 people in 2025.

Map of the United States showing where all 3 Morris Counties are, labeled by state
Every Morris County in the United States (red), labeled with its state. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

All 3 Morris Counties

Sorted by state. Each link opens the county's map.

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Morris County, KansasCouncil Grove5,3486951855Thomas Morris
Morris County, New JerseyMorristown524,2514611739Lewis Morris
Morris County, TexasDaingerfield12,1332521875–

Questions about Morris Counties

How many Morris Counties are there?

There are 3 Morris Counties in the United States, in Kansas, New Jersey and Texas.

Which Morris County is the largest?

By population, Morris County, New Jersey (524,251 people in 2025). By land area, Morris County, Kansas (695 sq mi).

Which Morris County is the oldest?

Morris County, New Jersey, established in 1739. The newest is Morris County, Texas (1875).

How do I find out which Morris County an address is in?

Open the county map of the state: it has a search box for cities, towns and ZIP codes. On a phone, the "what county am I in" tool on our sister site uses your location.

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Other common county names