ZIP 57021 vs ZIP 57031
A side-by-side comparison of ZIP Code 57021 and ZIP Code 57031: population, income, housing, and more.
ZIP 57021 and ZIP 57031 are ZIP Code areas in South Dakota. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 57031 has the higher population (670 vs 356 in ZIP 57021). ZIP 57021 has the higher median household income ($74,594 vs $73,487 in ZIP 57031). Since 2019, ZIP 57021's population has grown faster (+40.7% vs -17.8%).
Population, income & housing
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| Population | 356 | 670 |
| Median age | 45.8 yrs | 43.3 yrs |
| Median household income | $74,594 | $73,487 |
| Median home value | — | $138,000 |
| Median gross rent | — | $533 |
| Housing units | 145 | 379 |
| Homeownership rate | 84.9% | 92.9% |
| Bachelor's degree or higher | 55.0% | 18.1% |
| Unemployment rate | 2.1% | 0.0% |
Trends (ACS 5-year, 2019–2023)
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| Population | 253 → 356 (+40.7%) | 815 → 670 (-17.8%) |
| Median household income | $71,250 → $74,594 (+4.7%) | $70,938 → $73,487 (+3.6%) |
| Median home value | — | $133,000 → $138,000 (+3.8%) |
| Median gross rent | — | $625 → $533 (-14.7%) |
ZIP 57021
253356
$71,250$74,594
ZIP 57031
815670
$70,938$73,487
$133,000$138,000
$625$533
Age & race/ethnicity
Age distribution (share)
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| Under 5 | 4.8% | 3.3% |
| 5 to 17 | 19.7% | 11.9% |
| 18 to 24 | 0.0% | 4.8% |
| 25 to 34 | 13.5% | 8.8% |
| 35 to 44 | 7.6% | 23.6% |
| 45 to 54 | 9.3% | 12.1% |
| 55 to 64 | 32.6% | 18.5% |
| 65 to 74 | 7.0% | 10.6% |
| 75 and over | 5.6% | 6.4% |
Race & ethnicity (share)
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| White (non-Hispanic) | 92.1% | 91.9% |
| Black or African American | 0.0% | 0.0% |
| American Indian & Alaska Native | 0.0% | 0.4% |
| Asian | 7.0% | 0.3% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.3% |
| Two or more races | 0.8% | 2.4% |
| Hispanic or Latino | 0.0% | 4.6% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| No high school diploma | 4.5% | 3.4% |
| High school graduate | 20.8% | 28.2% |
| Some college or associate's | 19.7% | 50.4% |
| Bachelor's degree | 55.0% | 13.4% |
| Graduate or professional degree | 0.0% | 4.7% |
Commute to work
How workers get to work (share)
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| Drove alone | 76.3% | 84.0% |
| Carpooled | 14.7% | 4.8% |
| Public transit | 0.9% | 0.0% |
| Walked | 5.2% | 1.1% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 3.0% | 9.3% |
| Other means | 0.0% | 0.9% |
Housing
Units in structure (share)
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| 1-unit, detached | 91.7% | 94.7% |
| 1-unit, attached | 0.0% | 0.0% |
| 2 to 4 units | 1.4% | 3.4% |
| 5 to 19 units | 0.0% | 0.3% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 6.9% | 1.6% |
Poverty & households
| ZIP 57021 | ZIP 57031 | |
|---|---|---|
| Poverty rate | 6.6% | 1.8% |
| Average household size | 2.56 | 1.90 |
| Mean commute (minutes) | 34 | 20 |
| Median year structure built | 1938 | 1964 |