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Where am ILOCATED

Waukesha County, Wisconsin

Waukesha County, Wisconsin, has 417,210 residents (July 2025 estimate). Its county seat is Waukesha. It uses Central Time and covers 550 sq mi (1,424 km²) of land.

MilwaukeeMadisonGreen Bay
Waukesha County in Wisconsin
Milwaukee CountyMilwaukeeWaukeshaBrookfieldNew BerlinMenomonee Falls
Waukesha County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
417,210
Land area
550 sq mi (1,424 km²)
County seat or government
Waukesha
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$106,076 ± $1,512
Median home value
$398,200 ± $3,967
Median rent, with utilities
$1,356 ± $22
Homes lived in by their owners
76% ± 0.7 points
County type
County
Metro or micro area
Milwaukee-Waukesha, WI metro areaCentral county
Water area
30.8 sq mi (79.8 km²)
State
Wisconsin
County code (FIPS)
55133
Coordinates (central point)
43.018368, -88.304240
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 Waukesha 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. 5305139,559 people
  2. 5306637,558 people
  3. 5318834,892 people
  4. 5318633,374 people
  5. 5315132,824 people
  6. 5318926,855 people
  7. 5315026,259 people
  8. 5307226,200 people
  9. 5322525,187 people
  10. 5304523,329 people
  11. 5322722,885 people
  12. 5302921,778 people
All 31
  1. 5300521,675 people
  2. 5308920,588 people
  3. 5314919,614 people
  4. 5318518,560 people
  5. 530188,201 people
  6. 531187,554 people
  7. 531467,285 people
  8. 531226,508 people
  9. 531195,803 people
  10. 530175,458 people
  11. 531033,762 people
  12. 530363,730 people
  13. 530583,405 people
  14. 531833,111 people
  15. 531532,548 people
  16. 530071,859 people
  17. 530461,482 people
  18. 53069671 people
  19. 5312779 people

31 ZIP Code areas overlap Waukesha 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 Waukesha County, largest first

  1. Town of Oconomowoc8,832 people
  2. Town of Merton8,278 people
  3. Town of Delafield8,079 people
  4. Town of Mukwonago7,792 people
  5. Town of Genesee7,193 people
  6. Town of Brookfield6,459 people
  7. Town of Ottawa3,644 people
  8. Town of Eagle3,507 people

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

School districts in Waukesha County, largest first

  1. Waukesha School District94,232 people
  2. West Allis School District66,316 people
  3. Elmbrook School District48,049 people
  4. Oconomowoc Area School District38,139 people
  5. New Berlin School District36,729 people
  6. Arrowhead Union High School District35,132 people
  7. Menomonee Falls School District31,107 people
  8. Hamilton School District30,459 people
  9. Mukwonago School District30,328 people
  10. Muskego-Norway School District29,978 people
  11. Kettle Moraine School District24,417 people
  12. Waterford Union High School District19,190 people
All 23
  1. Pewaukee School District18,646 people
  2. Hartland-Lakeside Joint No. 3 School District11,655 people
  3. Palmyra-Eagle Area School District7,895 people
  4. Merton Community School District6,719 people
  5. Lake Country School District4,352 people
  6. Swallow School District3,391 people
  7. Richmond School District3,250 people
  8. North Lake School District2,989 people
  9. Stone Bank School District2,776 people
  10. Washington-Caldwell School District1,735 people
  11. Norris School District43 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. Waukesha, Wisconsin (city)71,233 people
  3. Brookfield, Wisconsin (city)41,273 people
  4. New Berlin, Wisconsin (city)40,270 people
  5. Menomonee Falls, Wisconsin (village)39,539 people
  6. Muskego, Wisconsin (city)25,406 people
  7. Oconomowoc, Wisconsin (city)19,080 people
  8. Pewaukee, Wisconsin (city)16,211 people
  9. Sussex, Wisconsin (village)12,066 people
  10. Lisbon, Wisconsin (village)10,736 people
  11. Hartland, Wisconsin (village)9,972 people
  12. Waukesha, Wisconsin (village)8,514 people
All 32
  1. Mukwonago, Wisconsin (village)8,415 people
  2. Pewaukee, Wisconsin (village)8,196 people
  3. Vernon, Wisconsin (village)7,481 people
  4. Delafield, Wisconsin (city)7,202 people
  5. Elm Grove, Wisconsin (village)6,459 people
  6. Summit, Wisconsin (village)5,114 people
  7. Okauchee Lake, Wisconsin (CDP)4,733 people
  8. Merton, Wisconsin (village)3,550 people
  9. Wales, Wisconsin (village)2,902 people
  10. Dousman, Wisconsin (village)2,479 people
  11. North Prairie, Wisconsin (village)2,385 people
  12. Eagle, Wisconsin (village)2,054 people
  13. Butler, Wisconsin (village)1,859 people
  14. Lannon, Wisconsin (village)1,482 people
  15. Nashotah, Wisconsin (village)1,354 people
  16. Big Bend, Wisconsin (village)1,291 people
  17. Chenequa, Wisconsin (village)742 people
  18. Oconomowoc Lake, Wisconsin (village)669 people

See all 32 cities, towns and communities in Waukesha County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Milwaukee County, Wisconsin24 mi east
  2. Jefferson County, Wisconsin24 mi west
  3. Washington County, Wisconsin26 mi north
  4. Walworth County, Wisconsin27 mi southwest
  5. Racine County, Wisconsin32 mi southeast
  6. Dodge County, Wisconsin35 mi northwest
  7. Ozaukee County, Wisconsin41 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.