ZIP codes
11
Plymouth County, IA Demographics & ZIP Codes
Plymouth County, Iowa demographics and median household income by ZIP code — 11 ZIP codes — population 33,554 — avg. income $82,918 — avg. home value $196,555. Compare income, housing, and ZIP-level data on US5.
Population
33,554
Median household income (avg.)
$82,918
110% of U.S. median
Average home value
$196,555
56% of U.S. median
Average rent
$650
56% of U.S. median
Plymouth County demographics
Plymouth County, Iowa covers 11 ZIP codes, with a combined ZIP-area population of about 33,554.
Median household income in Plymouth County
The average median household income across ZIP codes in Plymouth County, Iowa is about $82,918 — about 12% above the IA ZIP average ($74,194), and about 10% above the U.S. median ($75,149).
Among ZIPs with income data, 51024 (Hinton) is near the top at about $108,892, while 51008 (Brunsville) is near the bottom at about $67,125.
Housing in Plymouth County
For housing in Plymouth County, Iowa, the average median home value is about $196,555 and the average median rent is about $650.
The most populous ZIP is 51031 (Le Mars) with about 12,785 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Plymouth County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 51031 | Le Mars | Plymouth County | IA | 12,785 | $74,978 | $208,900 |
| 51108 | Sioux City | Plymouth County | IA | 5,637 | $78,333 | $166,600 |
| 51109 | Sioux City | Plymouth County | IA | 3,731 | $70,750 | $120,400 |
| 51050 | Remsen | Plymouth County | IA | 2,909 | $101,691 | $219,100 |
| 51001 | Akron | Plymouth County | IA | 2,292 | $67,639 | $177,700 |
| 51024 | Hinton | Plymouth County | IA | 2,048 | $108,892 | $317,100 |
| 51028 | Kingsley | Plymouth County | IA | 2,047 | $74,655 | $195,000 |
| 51038 | Merrill | Plymouth County | IA | 1,512 | $88,864 | $181,800 |
| 51062 | Westfield | Plymouth County | IA | 338 | — | $284,200 |
| 51008 | Brunsville | Plymouth County | IA | 180 | $67,125 | $136,300 |
| 51045 | Oyens | Plymouth County | IA | 75 | $96,250 | $155,000 |
Frequently asked questions
What are the demographics of Plymouth County?
Plymouth County, Iowa has a combined ZIP-area population of about 33,554 across 11 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Plymouth County?
The average median household income across ZIP codes in Plymouth County, Iowa is about $82,918, about 12% above the state ZIP average ($74,194), and about 10% above the U.S. median ($75,149). Average median home value is about $196,555. Among ZIPs with data, 51024 (Hinton) is near the top ($108,892) and 51008 (Brunsville) is near the bottom ($67,125).
How many ZIP codes are in Plymouth County?
Plymouth County, Iowa includes 11 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Plymouth County?
This page lists ZIP codes in Plymouth County, Iowa with population, median household income, and home value. Select a ZIP for a full demographics profile.