Boise City
- County:
- Cimarron County
- County Seat:
- Yes
- Area (mi²):
- 1.476
- State:
- Oklahoma
Boise City is a city located in Cimarron County, Oklahoma. Boise City has a 2026 population of 1,077. It is also the county seat of Cimarron County. Boise City is currently declining at a rate of -2.62% annually and its population has decreased by -7.39% since the most recent census, which recorded a population of 1,163 in 2020.