ZIP 51231 vs ZIP 51238
A side-by-side comparison of ZIP Code 51231 and ZIP Code 51238: population, income, housing, and more.
ZIP 51231 and ZIP 51238 are ZIP Code areas in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 51238 has the higher population (1,483 vs 543 in ZIP 51231). ZIP 51231 has the higher median household income ($105,388 vs $82,634 in ZIP 51238). ZIP 51231 has the higher median home value ($179,600 vs $176,000 in ZIP 51238).
Population, income & housing
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| Population | 543 | 1,483 |
| Median age | 16.3 yrs | 34.1 yrs |
| Median household income | $105,388 | $82,634 |
| Median home value | $179,600 | $176,000 |
| Median gross rent | — | $698 |
| Housing units | 154 | 548 |
| Homeownership rate | 93.4% | 87.2% |
| Bachelor's degree or higher | 34.9% | 21.2% |
| Unemployment rate | 0.5% | 2.1% |
Trends (ACS 5-year, 2019–2023)
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| Population | 386 → 543 (+40.7%) | 1,220 → 1,483 (+21.6%) |
| Median household income | $56,667 → $105,388 (+86.0%) | $61,635 → $82,634 (+34.1%) |
| Median home value | $85,000 → $179,600 (+111.3%) | $125,600 → $176,000 (+40.1%) |
| Median gross rent | — | $592 → $698 (+17.9%) |
ZIP 51231
386543
$56,667$105,388
$85,000$179,600
ZIP 51238
1,2201,483
$61,635$82,634
$125,600$176,000
$592$698
Age & race/ethnicity
Age distribution (share)
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| Under 5 | 16.8% | 5.3% |
| 5 to 17 | 35.5% | 29.3% |
| 18 to 24 | 1.3% | 6.3% |
| 25 to 34 | 18.6% | 10.3% |
| 35 to 44 | 12.0% | 14.2% |
| 45 to 54 | 3.1% | 7.7% |
| 55 to 64 | 4.2% | 10.7% |
| 65 to 74 | 6.4% | 9.3% |
| 75 and over | 2.0% | 6.9% |
Race & ethnicity (share)
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| White (non-Hispanic) | 99.8% | 80.4% |
| Black or African American | 0.0% | 1.9% |
| American Indian & Alaska Native | 0.0% | 0.5% |
| Asian | 0.0% | 0.0% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 0.0% | 2.2% |
| Hispanic or Latino | 0.2% | 15.1% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| No high school diploma | 2.0% | 6.7% |
| High school graduate | 23.0% | 36.2% |
| Some college or associate's | 40.1% | 35.8% |
| Bachelor's degree | 32.9% | 16.9% |
| Graduate or professional degree | 2.0% | 4.3% |
Commute to work
How workers get to work (share)
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| Drove alone | 88.7% | 79.7% |
| Carpooled | 5.4% | 7.5% |
| Public transit | 0.0% | 0.0% |
| Walked | 1.0% | 4.4% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 4.9% | 7.0% |
| Other means | 0.0% | 1.4% |
Housing
Units in structure (share)
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| 1-unit, detached | 98.7% | 92.7% |
| 1-unit, attached | 0.6% | 0.9% |
| 2 to 4 units | 0.0% | 2.6% |
| 5 to 19 units | 0.0% | 3.3% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 0.6% | 0.5% |
Poverty & households
| ZIP 51231 | ZIP 51238 | |
|---|---|---|
| Poverty rate | 28.0% | 9.0% |
| Average household size | 3.57 | 2.75 |
| Mean commute (minutes) | 26 | 14 |
| Median year structure built | 1956 | 1957 |