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Where am ILOCATED

Marion County, Iowa

Marion County, Iowa, has 34,192 residents (July 2025 estimate). Its county seat is Knoxville. It uses Central Time and covers 554 sq mi (1,436 km²) of land.

Des MoinesCedar RapidsDavenport
Marion County in Iowa
PellaKnoxvillePleasantvilleMelcher-DallasBussey
Marion County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
34,192
Land area
554 sq mi (1,436 km²)
County seat or government
Knoxville
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$78,680 ± $3,041
Median home value
$233,000 ± $9,817
Median rent, with utilities
$884 ± $35
Homes lived in by their owners
77.7% ± 1.1 points
County type
County
Metro or micro area
Pella, IA micro areaCentral county
Water area
16 sq mi (41.5 km²)
State
Iowa
County code (FIPS)
19125
Coordinates (central point)
41.331433, -93.093868
Open this point in the location finder

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 Marion County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 5021914,416 people
  2. 5013811,117 people
  3. 500496,414 people
  4. 502373,635 people
  5. 502253,364 people
  6. 501703,024 people
  7. 502282,120 people
  8. 501391,025 people
  9. 50044901 people
  10. 50062789 people
  11. 50150736 people
  12. 50214719 people
All 19
  1. 50163689 people
  2. 50256643 people
  3. 50143538 people
  4. 50119392 people
  5. 50057327 people
  6. 50116261 people
  7. 50252236 people

19 ZIP Code areas overlap Marion 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 Marion County, largest first

  1. Lake Prairie Township12,903 people
  2. Knoxville Township10,089 people
  3. Pleasant Grove Township2,951 people
  4. Summit Township1,694 people
  5. Dallas Township1,529 people
  6. Liberty Township963 people
  7. Clay Township913 people
  8. Indiana Township615 people
  9. Washington Township604 people
  10. Red Rock Township582 people
  11. Union Township513 people
  12. Franklin Township286 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county

School districts in Marion County, largest first

  1. Southeast Polk Community School District43,814 people
  2. Pella Community School District15,694 people
  3. Knoxville Community School District11,273 people
  4. Chariton Community School District8,276 people
  5. PCM Community School District5,567 people
  6. Pleasantville Community School District3,740 people
  7. Twin Cedars Community School District2,353 people
  8. Melcher-Dallas Community School District1,776 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.

  1. Pella, Iowa (city)10,720 people
  2. Knoxville, Iowa (city)7,473 people
  3. Pleasantville, Iowa (city)1,899 people
  4. Melcher-Dallas, Iowa (city)1,176 people
  5. Bussey, Iowa (city)414 people
  6. Harvey, Iowa (city)174 people
  7. Hamilton, Iowa (city)107 people
  8. Marysville, Iowa (city)70 people
  9. Swan, Iowa (city)55 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Mahaska County, Iowa24 mi east
  2. Monroe County, Iowa24 mi southeast
  3. Lucas County, Iowa24 mi southwest
  4. Jasper County, Iowa25 mi north
  5. Warren County, Iowa25 mi west
  6. Polk County, Iowa35 mi northwest

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.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.