ZIP 51631 vs ZIP 51640
A side-by-side comparison of ZIP Code 51631 and ZIP Code 51640: population, income, housing, and more.
ZIP 51631 and ZIP 51640 are ZIP Code areas in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 51640 has the higher population (1,445 vs 331 in ZIP 51631). ZIP 51640 has the higher median household income ($62,241 vs $45,000 in ZIP 51631). ZIP 51631 has the higher median home value ($123,800 vs $120,400 in ZIP 51640).
Population, income & housing
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| Population | 331 | 1,445 |
| Median age | 60.0 yrs | 43.1 yrs |
| Median household income | $45,000 | $62,241 |
| Median home value | $123,800 | $120,400 |
| Median gross rent | $853 | $728 |
| Housing units | 209 | 756 |
| Homeownership rate | 78.1% | 79.3% |
| Bachelor's degree or higher | 8.8% | 15.1% |
| Unemployment rate | 0.6% | 1.1% |
Trends (ACS 5-year, 2019–2023)
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| Population | 290 → 331 (+14.1%) | 1,569 → 1,445 (-7.9%) |
| Median household income | $41,316 → $45,000 (+8.9%) | $47,813 → $62,241 (+30.2%) |
| Median home value | $99,200 → $123,800 (+24.8%) | $86,500 → $120,400 (+39.2%) |
| Median gross rent | $706 → $853 (+20.8%) | $652 → $728 (+11.7%) |
ZIP 51631
290331
$41,316$45,000
$99,200$123,800
$706$853
ZIP 51640
1,5691,445
$47,813$62,241
$86,500$120,400
$652$728
Age & race/ethnicity
Age distribution (share)
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| Under 5 | 2.7% | 2.6% |
| 5 to 17 | 7.3% | 21.7% |
| 18 to 24 | 3.9% | 7.3% |
| 25 to 34 | 10.6% | 10.6% |
| 35 to 44 | 13.3% | 11.8% |
| 45 to 54 | 9.7% | 10.8% |
| 55 to 64 | 16.3% | 13.6% |
| 65 to 74 | 23.3% | 11.0% |
| 75 and over | 13.0% | 10.7% |
Race & ethnicity (share)
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| White (non-Hispanic) | 95.2% | 93.1% |
| Black or African American | 2.1% | 0.0% |
| American Indian & Alaska Native | 0.0% | 0.0% |
| Asian | 0.0% | 0.9% |
| Native Hawaiian & Pacific Islander | 0.0% | 0.0% |
| Some other race | 0.0% | 0.0% |
| Two or more races | 2.1% | 3.5% |
| Hispanic or Latino | 0.6% | 2.4% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| No high school diploma | 2.5% | 3.2% |
| High school graduate | 34.4% | 37.7% |
| Some college or associate's | 54.4% | 44.0% |
| Bachelor's degree | 7.7% | 12.6% |
| Graduate or professional degree | 1.1% | 2.4% |
Commute to work
How workers get to work (share)
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| Drove alone | 73.2% | 82.9% |
| Carpooled | 17.2% | 10.5% |
| Public transit | 0.0% | 0.0% |
| Walked | 0.0% | 4.3% |
| Bicycle | 0.0% | 0.0% |
| Worked from home | 9.6% | 2.4% |
| Other means | 0.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| 1-unit, detached | 92.8% | 93.5% |
| 1-unit, attached | 0.0% | 0.0% |
| 2 to 4 units | 0.0% | 5.8% |
| 5 to 19 units | 0.0% | 0.0% |
| 20 or more units | 0.0% | 0.0% |
| Mobile home & other | 7.2% | 0.7% |
Poverty & households
| ZIP 51631 | ZIP 51640 | |
|---|---|---|
| Poverty rate | 14.7% | 11.2% |
| Average household size | 1.86 | 2.29 |
| Mean commute (minutes) | 25 | 23 |
| Median year structure built | 1944 | 1952 |