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Where am ILOCATED

Poweshiek County, Iowa

Poweshiek County, Iowa, has 18,368 residents (July 2025 estimate). Its county seat is Montezuma. It uses Central Time and covers 585 sq mi (1,515 km²) of land.

Des MoinesCedar RapidsDavenport
Poweshiek County in Iowa
GrinnellBrooklynMontezumaVictorHoliday Lake
Poweshiek County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
18,368
Land area
585 sq mi (1,515 km²)
County seat or government
Montezuma
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$67,391 ± $5,210
Median home value
$209,300 ± $13,672
Median rent, with utilities
$883 ± $40
Homes lived in by their owners
71.2% ± 3.2 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Oskaloosa, IA micro area, Marshalltown, IA micro area, Cedar Rapids, IA metro area, and Des Moines-West Des Moines, IA metro area
Water area
1.13 sq mi (2.94 km²)
State
Iowa
County code (FIPS)
19157
Coordinates (central point)
41.684642, -92.522934
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 Poweshiek 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. 5011211,862 people
  2. 523394,326 people
  3. 522082,877 people
  4. 522112,795 people
  5. 501712,524 people
  6. 502072,325 people
  7. 523471,386 people
  8. 501061,163 people
  9. 52215960 people
  10. 50153890 people
  11. 52222631 people
  12. 50157473 people
All 17
  1. 52221332 people
  2. 50242326 people
  3. 52232277 people
  4. 50027148 people
  5. 50104103 people

17 ZIP Code areas overlap Poweshiek 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

Poweshiek County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Poweshiek County, largest first

  1. Bear Creek Township1,772 people
  2. Jackson Township1,733 people
  3. Madison Township648 people
  4. Union Township600 people
  5. Malcom Township597 people
  6. Warren Township545 people
  7. Deep River Township490 people
  8. Jefferson Township404 people
  9. Grant Township395 people
  10. Sugar Creek Township361 people
  11. Lincoln Township328 people
  12. Washington Township326 people
All 16
  1. Chester Township264 people
  2. Pleasant Township196 people
  3. Scott Township194 people
  4. Sheridan Township187 people

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

School districts in Poweshiek County, largest first

  1. Grinnell-Newburg Community School District12,729 people
  2. South Tama County Community School District8,233 people
  3. East Marshall Community School District3,780 people
  4. Brooklyn-Guernsey-Malcom Community School District3,318 people
  5. Belle Plaine Community School District3,225 people
  6. Montezuma Community School District3,136 people
  7. Lynnville-Sully Community School District2,975 people
  8. English Valleys Community School District2,811 people
  9. North Mahaska Community School District2,675 people
  10. H-L-V Community School District2,259 people
  11. 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. Grinnell, Iowa (city)9,505 people
  2. Brooklyn, Iowa (city)1,459 people
  3. Montezuma, Iowa (city)1,410 people
  4. Victor, Iowa (city)987 people
  5. Holiday Lake, Iowa (CDP)397 people
  6. Deep River, Iowa (city)335 people
  7. Malcom, Iowa (city)221 people
  8. Barnes City, Iowa (city)117 people
  9. Hartwick, Iowa (city)114 people
  10. Searsboro, Iowa (city)109 people
  11. Guernsey, Iowa (city)50 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Iowa County, Iowa24 mi east
  2. Mahaska County, Iowa25 mi south
  3. Tama County, Iowa27 mi north
  4. Jasper County, Iowa27 mi west
  5. Keokuk County, Iowa31 mi southeast
  6. Marshall County, Iowa34 mi northwest
  7. Benton County, Iowa37 mi northeast

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.