County · Iowa · United States
Linn County ZIP codes
23 ZIP codes · 18 cities · FIPS 19113
Key facts
- State
- Iowa (IA)
- FIPS code
- 19113
- Population
- 229,463
- Median household income
- $76,421
- Median age
- 38.5
- Land area
- 717.1 sq mi (1,857.2 km²)
- Population density
- 320 / sq mi
- Area codes
- 319
Cities and ZIP codes in Linn County (18)
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.