US Census Data

ZIP 51521 vs ZIP 51531

A side-by-side comparison of ZIP Code 51521 and ZIP Code 51531: population, income, housing, and more.

ZIP 51521 and ZIP 51531 are ZIP Code areas in Iowa. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 51521 has the higher population (1,935 vs 943 in ZIP 51531). ZIP 51521 has the higher median household income ($71,715 vs $58,929 in ZIP 51531). ZIP 51521 has the higher median home value ($173,100 vs $132,300 in ZIP 51531).

Population, income & housing

ZIP 51521ZIP 51531
Population1,935943
Median age42.4 yrs43.0 yrs
Median household income$71,715$58,929
Median home value$173,100$132,300
Median gross rent$883$643
Housing units934408
Homeownership rate74.2%78.9%
Bachelor's degree or higher27.7%25.2%
Unemployment rate0.6%2.6%

Trends (ACS 5-year, 2019–2023)

ZIP 51521ZIP 51531
Population1,784 → 1,935 (+8.5%)762 → 943 (+23.8%)
Median household income$55,764 → $71,715 (+28.6%)$61,250 → $58,929 (-3.8%)
Median home value$130,200 → $173,100 (+32.9%)$127,600 → $132,300 (+3.7%)
Median gross rent$737 → $883 (+19.8%)$534 → $643 (+20.4%)

ZIP 51521

Population
1,7841,935
Median household income
$55,764$71,715
Median home value
$130,200$173,100
Median gross rent
$737$883

ZIP 51531

Population
762943
Median household income
$61,250$58,929
Median home value
$127,600$132,300
Median gross rent
$534$643

Age & race/ethnicity

Age distribution (share)

ZIP 51521ZIP 51531
Under 57.9%5.5%
5 to 1717.2%18.7%
18 to 248.5%8.0%
25 to 349.3%11.9%
35 to 4411.1%10.2%
45 to 5412.1%9.0%
55 to 6410.3%15.3%
65 to 7415.6%7.3%
75 and over8.0%14.2%

Race & ethnicity (share)

ZIP 51521ZIP 51531
White (non-Hispanic)96.5%95.8%
Black or African American0.0%0.0%
American Indian & Alaska Native0.1%1.0%
Asian0.4%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.5%1.3%
Two or more races1.8%1.1%
Hispanic or Latino0.7%1.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 51521ZIP 51531
No high school diploma5.5%4.4%
High school graduate30.5%35.8%
Some college or associate's36.3%34.7%
Bachelor's degree15.5%16.9%
Graduate or professional degree12.2%8.3%

Commute to work

How workers get to work (share)

ZIP 51521ZIP 51531
Drove alone90.6%75.4%
Carpooled5.6%0.5%
Public transit0.0%0.5%
Walked0.0%10.3%
Bicycle0.0%0.0%
Worked from home3.8%12.6%
Other means0.0%0.7%

Housing

Units in structure (share)

ZIP 51521ZIP 51531
1-unit, detached90.8%89.7%
1-unit, attached1.3%3.2%
2 to 4 units2.6%5.4%
5 to 19 units2.9%0.0%
20 or more units0.9%0.0%
Mobile home & other1.6%1.7%

Poverty & households

ZIP 51521ZIP 51531
Poverty rate10.5%9.5%
Average household size2.242.35
Mean commute (minutes)2223
Median year structure built19411938

Full profiles

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ZIP 51521 vs ZIP 51531: Compare Population & Demographics | US Census Data