St. John is a city located in Rolette County, North Dakota. St. John has a 2025 population of 310 . St. John is currently declining at a rate of -0.96% annually and its population has decreased by -4.02% since the most recent census, which recorded a population of 323 in 2020.
The median age in St. John is 44.5 years: 38.3 years for males, and 48.7 years for females. For every 100 females there are 161.1 males.
Data after 2023 is projected based on recent change
The racial composition of St. John includes 60.89% Native American, 23.79% White, 6.45% Black or African American, 5.65% other race, and smaller percentages for and multiracial populations.
Native American (60.89%)
White (23.79%)
Black or African American (6.45%)
Other race (5.65%)
Two or more races (3.23%)
Race | Population | Percentage (of total) |
|---|---|---|
| Native American | 151 | 60.89% |
| White | 59 | 23.79% |
| Black or African American | 16 | 6.45% |
| Other race | 14 | 5.65% |
| Two or more races | 8 | 3.23% |
Married
Widowed
Divorced
Separated
Never Married