Mountain Plains vs St. Onge
A side-by-side comparison of Mountain Plains and St. Onge: population, income, housing, and more.
Mountain Plains and St. Onge are places in South Dakota. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
Mountain Plains has the higher population (412 vs 46 in St. Onge). Since 2019, Mountain Plains's population has grown faster (+4.6% vs -58.9%).
Population, income & housing
| Mountain Plains | St. Onge | |
|---|---|---|
| Population | 412 | 46 |
| Median age | 62.6 yrs | — |
| Median household income | $166,641 | — |
| Median home value | $606,100 | — |
| Housing units | 168 | 46 |
| Homeownership rate | 100.0% | 100.0% |
| Bachelor's degree or higher | 44.4% | 100.0% |
| Unemployment rate | 8.5% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| Mountain Plains | St. Onge | |
|---|---|---|
| Population | 394 → 412 (+4.6%) | 112 → 46 (-58.9%) |
| Median household income | $102,569 → $166,641 (+62.5%) | — |
| Median home value | $452,700 → $606,100 (+33.9%) | — |
Mountain Plains
394412
$102,569$166,641
$452,700$606,100
St. Onge
11246
Age & race/ethnicity
Age distribution (share)
| Mountain Plains | St. Onge | |
|---|---|---|
| Under 5 | 0.0% | 0.0% |
| 5 to 17 | 4.1% | 0.0% |
| 18 to 24 | 12.9% | 0.0% |
| 25 to 34 | 3.9% | 0.0% |
| 35 to 44 | 2.2% | 0.0% |
| 45 to 54 | 5.8% | 0.0% |
| 55 to 64 | 35.7% | 100.0% |
| 65 to 74 | 25.5% | 0.0% |
| 75 and over | 10.0% | 0.0% |
Race & ethnicity (share)
| Mountain Plains | St. Onge | |
|---|---|---|
| White (non-Hispanic) | 89.3% | 100.0% |
| Black or African American | 0.0% | 0.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 4.4% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 5.6% | 0.0% |
| Hispanic or Latino | 0.7% | 0.0% |
Educational attainment (age 25+)
Share of adults 25+
| Mountain Plains | St. Onge | |
|---|---|---|
| No high school diploma | 3.8% | 0.0% |
| High school graduate | 17.0% | 0.0% |
| Some college or associate's | 34.8% | 0.0% |
| Bachelor's degree | 42.7% | 100.0% |
| Graduate or professional degree | 1.8% | 0.0% |
Commute to work
How workers get to work (share)
| Mountain Plains | St. Onge | |
|---|---|---|
| Drove alone | 95.5% | 100.0% |
| Carpooled | 0.0% | 0.0% |
| Public transit | 0.0% | 0.0% |
| Walked | 0.0% | 0.0% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 4.5% | 0.0% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| Mountain Plains | St. Onge | |
|---|---|---|
| 1-unit, detached | 100.0% | 100.0% |
| 1-unit, attached | 0.0% | 0.0% |
| 2 to 4 units | 0.0% | 0.0% |
| 5 to 19 units | 0.0% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 0.0% | 0.0% |
Poverty & households
| Mountain Plains | St. Onge | |
|---|---|---|
| Poverty rate | 0.0% | 0.0% |
| Average household size | 2.45 | — |
| Mean commute (minutes) | 18 | — |
| Median year structure built | 2003 | — |
Full profiles
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