St. John: Demographics & People
Census counts 286 people in St. John, in 103 households. Population grew 15.3% from 248 (2022) to 286 (2024). Median age 45.1 years. (12.6y older than Rolette County; 8.7y older than North Dakota). Children under 18 are 24% of the population. Population is 21% White (non-Hispanic) and 6% Black. 62% of households are family-led. County is losing 82 residents per year (2022-2023). County health: 45% adult obesity, 29% smoke.
- 2.8 people per household.
- 38% non-family households (singles, roommates).
Population & Trend
Population grew 15.3% from 248 (2022) to 286 (2024) — about 25.5× the recent U.S. annual rate of ~0.6%/yr. Estimated 2026 population: ~331 (extrapolated at 7.7%/yr trend). Census Bureau Vintage estimate: 398.
| Census data vintage | 2024 |
|---|---|
| Population | 12,187 people |
| Annual growth rate · Population change | 15.3% |
| Annual growth rate · Population (2022) | 248 |
| Annual growth rate · Population (2024) | 286 |
| Annual growth rate · Population growing | Yes |
| Annual growth rate · Trend category | booming |
| Population | 286 people |
| Population Estimate | 398 |
Sources: Census ACS 5-Year 2023, Table B01003 · Refreshed 2026-04-12
Age Distribution
Median age 45.1y is 6.2 years older than the U.S. median (38.9y). Children under 18 make up 24% — above the U.S. share of ~22%.
| Age Summary · Median age | 45.1 years (vs North Dakota 36.4y) |
|---|---|
| Age Summary · Children Pct | 23.8% |
| Age Summary · Character | established |
| Population under 18 | 68 |
| Median age | 45.1 years (vs North Dakota 36.4y) |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Race, Ethnicity & Diversity
Of 286 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White residents | 59 |
|---|---|
| Black residents | 16 |
| Diversity Index · Simpson Index | 41.0% |
| Diversity Index · Interpretation | moderately diverse |
| Black population | 5.6% |
| Hispanic or Latino population | 1.0% |
| White (non-Hispanic) population | 21.0% |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Ancestry
Self-reported ancestry from Census ACS — what residents report as their ethnic origin, separate from race. Counts can exceed population because people can list multiple ancestries.
Top (6)
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 0.3% are foreign-born — below the U.S. average of 13.9%.
| Residents born in this state | 277 |
|---|---|
| Residents born in another state | 8 |
| Share born in this state | 96.9% |
| Share born in another state | 3.1% |
| Native-born U.S. citizens | 2.8% |
| Foreign-born residents | 0.3% |
| Total foreign-born residents | 82 |
Households & Family Composition
103 households. Averaging 2.9 people each — larger than the U.S. average of 2.5. 62% are family households — below the U.S. share of ~65%. Of 54 families, 7% are married couples with children.
| Children under 18 | 59 |
|---|---|
| Total families | 54 |
| Married couples with children | 4 |
| Single-parent households | 3 |
| Average household size | 2.88 |
| Women who gave birth (past year) | 26.8% |
| Grandparents living with grandchildren | 20 |
| Family households | 64 households |
| Households that are families | 62.1% |
| Total households | 103 households |
Sources: Census ACS 5-Year 2023 · Refreshed 2026-04-12
Residential Stability & Migration
How long residents have lived here and where they came from. 8.5% moved within the county in the past year — the U.S. baseline is roughly 8–10%. The surrounding county is losing 82 residents per year on net (IRS migration data).
| Moved within the county (past year) | 8.5% |
|---|---|
| Migration · People moving in (annual) | 10,194 |
| Migration · People moving out (annual) | 10,276 |
| Migration · Net migration (in − out) | -82 |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2021-2022 · Refreshed 2026-04-12
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Residents with a disability | 35 |
|---|---|
| Disability rate | 16.2% |
Other
| Congressional District · District | at-large |
|---|---|
| Congressional District · Formatted | ND-AL |
| Congressional District · Congress | 118th |
| Cdc Birth Rate · Fips | 38,079 |
| Cdc Birth Rate · State Fips | 38 |
| Cdc Birth Rate · County Fips | 79 |
| Cdc Birth Rate · County | Rolette |
| Cdc Birth Rate · Birth Rate | 49.8% |
| Cdc Birth Rate · Lower Ci | 41.50 |
| Cdc Birth Rate · Upper Ci | 59.10 |
| Cdc Mortality · Fips | 38,079 |
| Cdc Mortality · County | Rolette County |
| Cdc Mortality · Urban Rural | Noncore |
| Cdc Mortality · Total Deaths 2020 2023 | 393 |
| Cdc Vaccination · Fips | 38,079 |
| Cdc Vaccination · County | Rolette County |
| Cdc Vaccination · Dose1 Pop Pct | 95.0% |
| Cdc Vaccination · Series Complete Pct | 80.5% |
| Cdc Vaccination · Booster Pct | 42.0% |
| Cdc Vaccination · Population 2019 | 14,176 |
| Cdc Vaccination · Metro Status | Non-metro |
| Family Score · Score | 7.50 |
| Family Score · Schools | 13 |
| Family Score · Children Pct | 23.8% |
| Family Score · Rating | excellent |
| Town Summary · Key Facts | population 286, booming, established, middle-class, service economy |
| Town Summary · Population | 286 people |
| Town Summary · County | Rolette County |
Sources: Census place-to-CD118 crosswalk (place_fips) · federal dataset cascade