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. For every 100 females there are 185.4 males.
Data after 2023 is projected based on recent change
The racial composition of King Arthur Park includes 92.02% White, and smaller percentages for other race and multiracial populations.
White (92.02%)
Two or more races (7.47%)
Other race (0.51%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 2,156 | 92.02% |
| Two or more races | 175 | 7.47% |
| Other race | 12 | 0.51% |
Married
Widowed
Divorced
Separated
Never Married
King Arthur Park's average per capita income is $57,083. Household income levels show a median of $107,341. The poverty rate stands at 5.41%.
Name | Median | Mean |
|---|---|---|
| Families | $110,927 | $103,340 |
| Households | $107,341 | $122,661 |
| Non Families | $107,059 | $121,847 |
| Married Families | - | - |
Average Income
Median Household Income
Poverty Rate