County · Iowa · United States
Marshall County ZIP codes
13 ZIP codes · 13 cities · FIPS 19127
Key facts
- State
- Iowa (IA)
- FIPS code
- 19127
- Population
- 39,971
- Median household income
- $72,785
- Median age
- 38.7
- Land area
- 572.5 sq mi (1,482.8 km²)
- Population density
- 70 / sq mi
- Area codes
- 641, 712
Cities and ZIP codes in Marshall County (13)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.