Clayton County, IA ZIP codes
Clayton County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Clayton County ZIP codes
The ZIP codes of Clayton County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Clayton County in numbers
About 17,013 people live in Clayton County, in 7,509 households, the 41st most populous of Iowa's 99 counties. The median household income is $67,242 a year, 10% below the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $168,500 (19% below the Iowa median), and median gross rent is $790 a month. The median age is 46.4; 14.5% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 23 minutes.
| Population | 17,013 |
|---|---|
| Households | 7,509 |
| Median age | 46.4 |
| Median household income | $67,242 |
| Median home value | $168,500 |
| Median gross rent | $790 |
| Bachelor's degree or higher | 14.5% |
| Mean commute | 23.1 min |
| Population density | 22 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Clayton County
| Town | ZIP codes | Population |
|---|---|---|
| Guttenberg | 1 | 1,782 |
| Mc Gregor | 1 | 1,451 |
| Elkader | 1 | 1,293 |
| Strawberry Point | 1 | 1,267 |
| Garnavillo | 1 | 816 |
| Edgewood | 1 | 752 |
| Colesburg | 1 | 545 |
| Marquette | 1 | 443 |
| Farmersburg | 1 | 375 |
| Luana | 1 | 317 |
| Volga | 1 | 216 |
| North Buena Vista | 1 | 139 |
| Garber | 1 | 105 |
| St. Olaf | 1 | 76 |
| Elkport | 1 | 22 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Clayton County.
Not sure you are in Clayton County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Clayton County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
52035 | Colesburg , IA | Standard | 1,331 | $62,109 | $138,500 |
52042 | Edgewood , IA | Standard | 1,804 | $95,833 | $234,300 |
52043 | Elkader , IA | Standard | 2,058 | $76,705 | $165,000 |
52044 | Elkport , IA | Standard | 297 | $75,792 | $97,000 |
52047 | Farmersburg , IA | Standard | 462 | $59,250 | $95,800 |
52048 | Garber , IA | Standard | 201 | $56,477 | $65,800 |
52049 | Garnavillo , IA | Standard | 1,370 | $61,964 | $170,800 |
52052 | Guttenberg , IA | Standard | 2,999 | $61,528 | $197,400 |
52066 | North Buena Vista , IA | Standard | 124 | $51,563 | $104,200 |
52072 | Saint Olaf , IA | Standard | 454 | $62,250 | $121,000 |
52076 | Strawberry Point , IA | Standard | 2,258 | $72,857 | $150,700 |
52077 | Volga , IA | Standard | 313 | $77,188 | — |
52156 | Luana , IA | Standard | 769 | $99,554 | $225,700 |
52157 | Mc Gregor , IA | Standard | 1,451 | $52,625 | $193,500 |
52158 | Marquette , IA | Standard | 290 | $47,188 | $161,300 |
Cite this page
zipcodes.pro. “Clayton County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ia/county/clayton
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