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Where am ILOCATED

Washington County, Wisconsin

Washington County, Wisconsin, has 139,238 residents (July 2025 estimate). Its county seat is West Bend. It uses Central Time and covers 431 sq mi (1,115 km²) of land.

MilwaukeeMadisonGreen Bay
Washington County in Wisconsin
Ozaukee CountyWest BendGermantownHartfordRichfield
Washington County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
139,238
Land area
431 sq mi (1,115 km²)
County seat or government
West Bend
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$96,359 ± $2,602
Median home value
$344,800 ± $5,406
Median rent, with utilities
$1,153 ± $34
Homes lived in by their owners
78.1% ± 1.2 points
County type
County
Metro or micro area
Milwaukee-Waukesha, WI metro areaOutlying county
Water area
5.02 sq mi (13 km²)
State
Wisconsin
County code (FIPS)
55131
Coordinates (central point)
43.391156, -88.232917
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. 5306637,558 people
  2. 5309527,817 people
  3. 5302723,118 people
  4. 5302921,778 people
  5. 5309021,625 people
  6. 5302220,046 people
  7. 5301219,183 people
  8. 5303710,254 people
  9. 530869,426 people
  10. 530408,630 people
  11. 530107,444 people
  12. 530336,286 people
All 18
  1. 530175,458 people
  2. 530214,537 people
  3. 530753,402 people
  4. 530763,109 people
  5. 530022,584 people
  6. 530912,123 people

18 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.

Towns in Washington County, largest first

  1. Town of Trenton4,579 people
  2. Town of West Bend4,405 people
  3. Town of Polk3,970 people
  4. Town of Jackson3,966 people
  5. Town of Erin3,818 people
  6. Town of Farmington3,579 people
  7. Town of Addison3,435 people
  8. Town of Hartford3,355 people
  9. Town of Barton2,766 people
  10. Town of Wayne2,199 people
  11. Town of Kewaskum997 people
  12. Town of Germantown246 people

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

School districts in Washington County, largest first

  1. West Bend School District52,724 people
  2. Hartford Union High School District32,815 people
  3. Germantown School District28,037 people
  4. Cedarburg School District21,446 people
  5. Hartford Joint No. 1 School District19,054 people
  6. Slinger School District17,085 people
  7. Kewaskum School District13,734 people
  8. Holy Hill Area School District6,350 people
  9. Random Lake School District5,862 people
  10. Erin School District2,949 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. Milwaukee, Wisconsin (city)566,973 people
  2. West Bend, Wisconsin (city)32,030 people
  3. Germantown, Wisconsin (village)20,962 people
  4. Hartford, Wisconsin (city)15,821 people
  5. Richfield, Wisconsin (village)11,755 people
  6. Jackson, Wisconsin (village)8,003 people
  7. Slinger, Wisconsin (village)6,307 people
  8. Kewaskum, Wisconsin (village)4,461 people
  9. Newburg, Wisconsin (village)1,287 people
  10. Allenton, Wisconsin (CDP)842 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Ozaukee County, Wisconsin21 mi east
  2. Dodge County, Wisconsin24 mi west
  3. Waukesha County, Wisconsin26 mi south
  4. Fond du Lac County, Wisconsin28 mi northwest
  5. Sheboygan County, Wisconsin35 mi northeast
  6. Milwaukee County, Wisconsin38 mi southeast

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.