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Where am ILOCATED

Iowa County, Iowa

Iowa County, Iowa, has 16,504 residents (July 2025 estimate). Its county seat is Marengo. It uses Central Time and covers 586 sq mi (1,519 km²) of land.

Des MoinesCedar RapidsDavenport
Iowa County in Iowa
WilliamsburgMarengoVictorNorth EnglishAmana
Iowa County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
16,504
Land area
586 sq mi (1,519 km²)
County seat or government
Marengo
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$71,223 ± $4,147
Median home value
$193,900 ± $8,995
Median rent, with utilities
$686 ± $42
Homes lived in by their owners
76.6% ± 3.0 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Iowa City, IA metro area and Cedar Rapids, IA metro area
Water area
1.04 sq mi (2.69 km²)
State
Iowa
County code (FIPS)
19095
Coordinates (central point)
41.683918, -92.059123
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 Iowa 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. 523614,582 people
  2. 523014,028 people
  3. 522082,877 people
  4. 523562,664 people
  5. 523222,266 people
  6. 522032,231 people
  7. 523161,597 people
  8. 523471,386 people
  9. 522091,158 people
  10. 523181,099 people
  11. 52222631 people
  12. 52236564 people
All 21
  1. 52251544 people
  2. 52325477 people
  3. 50136376 people
  4. 52221332 people
  5. 52355283 people
  6. 52220199 people
  7. 52334181 people
  8. 52308129 people
  9. 5230763 people

21 ZIP Code areas overlap Iowa 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 Iowa County, largest first

  1. Troy Township3,611 people
  2. Marengo Township2,647 people
  3. Lenox Township2,312 people
  4. English Township1,463 people
  5. Hartford Township1,219 people
  6. Washington Township1,047 people
  7. Fillmore Township696 people
  8. Sumner Township598 people
  9. Iowa Township596 people
  10. Hilton Township581 people
  11. York Township409 people
  12. Pilot Township378 people
All 16
  1. Greene Township264 people
  2. Honey Creek Township253 people
  3. Lincoln Township236 people
  4. Dayton Township197 people

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

School districts in Iowa County, largest first

  1. Clear Creek-Amana Community School District18,491 people
  2. Mid-Prairie Community School District9,768 people
  3. Benton Community School District9,691 people
  4. Williamsburg Community School District5,872 people
  5. Iowa Valley Community School District3,628 people
  6. Belle Plaine Community School District3,225 people
  7. English Valleys Community School District2,811 people
  8. H-L-V Community School District2,259 people
  9. Tri-County Community School District1,711 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. Williamsburg, Iowa (city)3,360 people
  2. Marengo, Iowa (city)2,725 people
  3. Victor, Iowa (city)987 people
  4. North English, Iowa (city)852 people
  5. Amana, Iowa (CDP)755 people
  6. Middle Amana, Iowa (CDP)683 people
  7. Parnell, Iowa (city)303 people
  8. Homestead, Iowa (CDP)252 people
  9. Ladora, Iowa (city)240 people
  10. Conroy, Iowa (CDP)199 people
  11. Millersburg, Iowa (city)129 people
  12. West Amana, Iowa (CDP)124 people
All 15
  1. South Amana, Iowa (CDP)121 people
  2. East Amana, Iowa (CDP)91 people
  3. High Amana, Iowa (CDP)36 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Poweshiek County, Iowa24 mi west
  2. Johnson County, Iowa24 mi east
  3. Keokuk County, Iowa25 mi south
  4. Benton County, Iowa28 mi north
  5. Washington County, Iowa30 mi southeast
  6. Linn County, Iowa36 mi northeast
  7. Tama County, Iowa36 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.