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ZIP CODE TABULATION AREA

51031

Iowa · 12,808 residents · 234 sq mi
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With 12,808 people, ZIP 51031 is a ZIP code in Plymouth County. Four-year degrees are less common here than nationally, at 22% of adults. The average commute runs 17 minutes. The typical home is worth $222,800. The foreign-born share is 6%. Median rent is $928 a month. Among the 10 ZIP codes in Plymouth County, 51031 ranks 8th by median household income.

$76,525
US average: $82,259
$38,599
US average: $44,673
$222,800
US average: $376,019
21.9%
US average: 35.6%
Land area
234 sq mi
Age, sex & households
Under 18
25.5%
Age 65+
17.2%
49.7%
50.3%
2.41 people
Race & ethnicity · 2024
2024
White, non-Hispanic83.5%(10,699)
Black4.6%(590)
Hispanic / Latino9.5%(1,215)
Asian0.1%(19)
Other2.2%(285)
36
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Housing
2.9
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Within Plymouth County
Income rank vs other ZIPs
LOWEST8TH OF 10HIGHEST
Adjacent ZIPs
51001$75,404
51008$45,000
51024$114,219
51028$78,000
Frequently asked

How many people live in ZIP code 51031?

ZIP code 51031 has about 12,808 residents according to the 2024 American Community Survey.

What is the median household income in ZIP code 51031?

The typical household in ZIP code 51031 earns about $76,525 a year. Half of households make more than that, and half make less.

Is ZIP code 51031 expensive?

In ZIP code 51031, the median home is worth about $222,800, and the typical rent is about $928 a month.

How educated are people in ZIP code 51031?

About 21.9% of adults age 25 and over in ZIP code 51031 hold a bachelor's degree or higher.

What is the poverty rate in ZIP code 51031?

About 8.3% of people in ZIP code 51031 live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR · ZCTA · UPDATED 2024