Linn County, Iowa
Linn County, Iowa, has 232,028 residents (July 2025 estimate). Its county seat is Cedar Rapids. It uses Central Time and covers 717 sq mi (1,857 km²) of land.
- Resident population, July 2025
- 232,028
- Land area
- 717 sq mi (1,857 km²)
- County seat or government
- Cedar Rapids
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $77,649 ± $2,246
- Median home value
- $214,300 ± $4,605
- Median rent, with utilities
- $945 ± $39
- Homes lived in by their owners
- 73.5% ± 0.8 points
- County type
- County
- Metro or micro area
- Cedar Rapids, IA metro areaCentral county
- Water area
- 7.66 sq mi (19.8 km²)
- State
- Iowa
- County code (FIPS)
- 19113
- Coordinates (central point)
- 42.077951, -91.597674
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Linn County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 5240442,958 people
- 5240242,938 people
- 5230242,706 people
- 5240526,526 people
- 5240322,551 people
- 522058,627 people
- 524118,342 people
- 522337,000 people
- 523106,450 people
- 523146,200 people
- 522134,114 people
- 523383,934 people
All 30
30 ZIP Code areas overlap Linn County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Linn County, largest first
- Marion Township44,817 people
- Monroe Township14,053 people
- Franklin Township7,313 people
- Fairfax Township4,675 people
- Washington Township3,382 people
- Putnam Township2,846 people
- Bertram Township2,381 people
- Brown Township2,108 people
- Maine Township1,565 people
- Fayette Township1,543 people
- Jackson Township1,413 people
- Otter Creek Township1,383 people
All 19
- Grant Township1,221 people
- Linn Township817 people
- Clinton Township812 people
- Spring Grove Township764 people
- Buffalo Township694 people
- College Township568 people
- Boulder Township385 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county
School districts in Linn County, largest first
- Cedar Rapids Community School District127,262 people
- Linn-Mar Community School District43,218 people
- College Community School District28,424 people
- Marion Independent School District12,101 people
- Anamosa Community School District9,451 people
- Mount Vernon Community School District7,058 people
- Solon Community School District7,046 people
- Monticello Community School District6,887 people
- Center Point-Urbana Community School District6,059 people
- Alburnett Community School District3,478 people
- North Linn Community School District2,944 people
- Central City Community School District2,694 people
All 14
- Lisbon Community School District2,541 people
- Springville Community School District2,493 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Cedar Rapids, Iowa (city)137,264 people
- Marion, Iowa (city)41,896 people
- Hiawatha, Iowa (city)7,206 people
- Mount Vernon, Iowa (city)4,513 people
- Robins, Iowa (city)3,332 people
- Fairfax, Iowa (city)2,900 people
- Center Point, Iowa (city)2,562 people
- Ely, Iowa (city)2,186 people
- Lisbon, Iowa (city)1,714 people
- Palo, Iowa (city)1,438 people
- Central City, Iowa (city)1,356 people
- Walford, Iowa (city)1,329 people
All 18
- Springville, Iowa (city)1,172 people
- Alburnett, Iowa (city)795 people
- Coggon, Iowa (city)744 people
- Walker, Iowa (city)661 people
- Bertram, Iowa (city)239 people
- Prairieburg, Iowa (city)143 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Benton County, Iowa24 mi west
- Jones County, Iowa25 mi east
- Johnson County, Iowa28 mi south
- Delaware County, Iowa30 mi northeast
- Buchanan County, Iowa30 mi northwest
- Cedar County, Iowa32 mi southeast
- Iowa County, Iowa36 mi southwest
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
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