Marshall County, IA ZIP codes
There are 13 ZIP codes in Marshall County, IA, in 13 towns, from 50005 to 50247. The largest are 50158 (Marshalltown), 50247 (State Center) and 50162 (Melbourne).
The county seat is Marshalltown.
- ZIP codes
- 13
- Towns
- 13
- County seat
- Marshalltown
- County FIPS
19127- State
- Iowa
- Population
- 40,114
- Median household income
- $73,315
- Land area
- 573 sq mi
- Area code
- 641
- Metro area
- Marshalltown
Marshall County ZIP codes by town
- Marshalltown (county seat)
- 50158
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 Marshall County ZIP codes
The ZIP codes of Marshall 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.
Marshall County in numbers
About 40,114 people live in Marshall County, in 15,496 households, the 15th most populous of Iowa's 99 counties. The median household income is $73,315 a year, about the same as the Iowa median of $75,059 (US: $80,734). The median owner-occupied home is valued at $145,500 (30% below the Iowa median), and median gross rent is $885 a month. The median age is 38.5; 22.6% of adults 25 and over hold a bachelor's degree or higher (31.4% across Iowa); the average commute takes 20 minutes.
| Population | 40,114 |
|---|---|
| Households | 15,496 |
| Median age | 38.5 |
| Median household income | $73,315 |
| Median home value | $145,500 |
| Median gross rent | $885 |
| Bachelor's degree or higher | 22.6% |
| Mean commute | 19.9 min |
| Population density | 70 / 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 Marshall County
| Town | ZIP codes | Population |
|---|---|---|
| Marshalltown | 1 | 27,626 |
| State Center | 1 | 1,412 |
| Melbourne | 1 | 804 |
| Le Grand | 1 | 720 |
| Gilman | 1 | 623 |
| Albion | 1 | 622 |
| Liscomb | 1 | 298 |
| Laurel | 1 | 278 |
| Rhodes | 1 | 265 |
| Haverhill | 1 | 142 |
| Clemons | 1 | 108 |
| St. Anthony | 1 | 92 |
| Ferguson | 1 | 85 |
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 Marshall County.
- Story County (16)
- Jasper County (12)
- Poweshiek County (8)
- Tama County (12)
- Hardin County (12)
- Grundy County (9)
Not sure you are in Marshall County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Marshall County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
50005 | Albion , IA | Standard | 812 | $76,696 | $137,500 |
50051 | Clemons , IA | Standard | 224 | $60,000 | $207,000 |
50078 | Ferguson , IA | Standard | 85 | $52,500 | $75,600 |
50106 | Gilman , IA | Standard | 1,163 | $101,193 | $118,900 |
50120 | Haverhill , IA | Standard | 428 | $142,662 | $177,000 |
50141 | Laurel , IA | Standard | 587 | $77,500 | $139,500 |
50142 | Le Grand , IA | Standard | 720 | $76,250 | $145,700 |
50148 | Liscomb , IA | Standard | 406 | $84,083 | $97,200 |
50158 | Marshalltown , IA | Standard | 31,396 | $70,367 | $140,700 |
50162 | Melbourne , IA | Standard | 1,164 | $71,417 | $176,600 |
50234 | Rhodes , IA | Standard | 559 | $78,750 | $195,800 |
50239 | Saint Anthony , IA | Standard | 354 | $151,250 | $354,200 |
50247 | State Center , IA | Standard | 2,004 | $91,875 | $181,300 |
Cite this page
zipcodes.pro. “Marshall County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ia/county/marshall
Underlying data is public domain or openly licensed — sources, vintages and licences.