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Where am ILOCATED

Washington County, Iowa

Washington County, Iowa, has 22,667 residents (July 2025 estimate). Its county seat is Washington. It uses Central Time and covers 569 sq mi (1,473 km²) of land.

Des MoinesCedar RapidsDavenport
Washington County in Iowa
WashingtonKalonaWellmanKeotaRiverside
Washington County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
22,667
Land area
569 sq mi (1,473 km²)
County seat or government
Washington
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$75,647 ± $2,941
Median home value
$203,900 ± $13,093
Median rent, with utilities
$879 ± $63
Homes lived in by their owners
74% ± 2.0 points
County type
County
Metro or micro area
Iowa City, IA metro areaOutlying county
Water area
2.06 sq mi (5.34 km²)
State
Iowa
County code (FIPS)
19183
Coordinates (central point)
41.329401, -91.725052
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 Washington 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. 5264112,428 people
  2. 523539,241 people
  3. 522475,914 people
  4. 523273,796 people
  5. 527383,398 people
  6. 523562,664 people
  7. 526541,884 people
  8. 522481,675 people
  9. 522011,148 people
  10. 525401,088 people
  11. 52585838 people
  12. 52621604 people
All 13
  1. 52359308 people

13 ZIP Code areas overlap Washington 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 Washington County, largest first

  1. Washington Township7,864 people
  2. English River Township4,610 people
  3. Iowa Township2,593 people
  4. Lime Creek Township2,186 people
  5. Oregon Township988 people
  6. Brighton Township759 people
  7. Marion Township720 people
  8. Jackson Township614 people
  9. Crawford Township591 people
  10. Franklin Township430 people
  11. Dutch Creek Township391 people
  12. Cedar Township215 people
All 15
  1. Highland Township210 people
  2. Clay Township208 people
  3. Seventy-Six Township182 people

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

School districts in Washington County, largest first

  1. Fairfield Community School District14,124 people
  2. Washington Community School District10,287 people
  3. Mid-Prairie Community School District9,768 people
  4. Highland Community School District3,855 people
  5. Pekin Community School District3,530 people
  6. WACO Community School District2,931 people
  7. Keota Community School District1,980 people
  8. Winfield-Mount Union Community School District1,685 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. Washington, Iowa (city)7,290 people
  2. Kalona, Iowa (city)2,692 people
  3. Wellman, Iowa (city)1,454 people
  4. Keota, Iowa (city)891 people
  5. Riverside, Iowa (city)890 people
  6. Ainsworth, Iowa (city)633 people
  7. Brighton, Iowa (city)588 people
  8. Crawfordsville, Iowa (city)312 people
  9. West Chester, Iowa (city)178 people
  10. Coppock, Iowa (city)29 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Keokuk County, Iowa23 mi west
  2. Johnson County, Iowa25 mi north
  3. Louisa County, Iowa25 mi east
  4. Henry County, Iowa26 mi south
  5. Jefferson County, Iowa26 mi southwest
  6. Iowa County, Iowa30 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.