
King Arthur Park
- County:
- Gallatin County
- County Seat:
- No
- Area (mi²):
- 0.463
- State:
- Montana
King Arthur Park is a CDP located in Gallatin County, Montana. King Arthur Park has a 2025 population of 2,357. King Arthur Park is currently growing at a rate of 4.8% annually and its population has increased by 21.93% since the most recent census, which recorded a population of 1,933 in 2020.
The average household income in King Arthur Park is $122,661 with a poverty rate of 5.41%. The median age in King Arthur Park is 34.6 years: 34.8 years for males, and 34.5 years for females.