
Arnett
- County:
- Ellis County
- County Seat:
- Yes
- Area (mi²):
- 0.516
- State:
- Oklahoma
Arnett is a town located in Ellis County, Oklahoma. Arnett has a 2025 population of 474. It is also the county seat of Ellis County. Arnett is currently declining at a rate of -1.04% annually and its population has decreased by -4.82% since the most recent census, which recorded a population of 498 in 2020.
The average household income in Arnett is $63,886 with a poverty rate of 17.18%. The median age in Arnett is 53.8 years: 38.9 years for males, and 58.6 years for females.