Waukesha County, Wisconsin

Waukesha County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF WAUKESHA GUS Population: 417,029 (2024) ID: 136514	County	Official County Government	Contact: BUDGET MANAGEMENT SPECIALIST 515 W MORELAND BLVD, STE G72, WAUKESHA WI 53188-2428
CITY OF WAUKESHA GUS Population: 71,461 (2024) ID: 184097	Municipal	Municipal Government Within County	Contact: MAYOR 201 DELAFIELD ST, WAUKESHA WI 53188-3646
CITY OF BROOKFIELD GUS Population: 41,268 (2024) ID: 115121	Municipal	Municipal Government Within County	Contact: ADMINISTRATIVE SPECIALIST 2000 N CALHOUN RD, BROOKFIELD WI 53005-5095
VILLAGE OF MENOMONEE FALLS GUS Population: 40,700 (2024) ID: 177270	Municipal	Municipal Government Within County	Contact: PRESIDENT W156N8480 PILGRIM RD, MENOMONEE FALLS WI 53051-3140
CITY OF NEW BERLIN GUS Population: 40,302 (2024) ID: 188022	Municipal	Municipal Government Within County	Contact: MAYOR 3805 S CASPER DR, NEW BERLIN WI 53151-5009
CITY OF MUSKEGO GUS Population: 25,759 (2024) ID: 177277	Municipal	Municipal Government Within County	Contact: MAYOR W182S8200 RACINE AVE, MUSKEGO WI 53150
CITY OF OCONOMOWOC GUS Population: 20,002 (2024) ID: 136603	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 27, OCONOMOWOC WI 53066-0027
CITY OF PEWAUKEE GUS Population: 16,437 (2024) ID: 140778	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR W240N3065 PEWAUKEE RD, PEWAUKEE WI 53072-4098
VILLAGE OF SUSSEX GUS Population: 12,607 (2024) ID: 177273	Municipal	Municipal Government Within County	Contact: CLERK-TREASURER N64W23760 MAIN ST, SUSSEX WI 53089-3120
VILLAGE OF LISBON GUS Population: 11,127 (2024) ID: 184101	Municipal	Municipal Government Within County	Contact: KATHY NICKOLAUS W234N8676 WOODSIDE RD, LISBON WI 53089-1545
VILLAGE OF HARTLAND GUS Population: 10,203 (2024) ID: 177268	Municipal	Municipal Government Within County	Contact: VILLAGE CLERK 210 COTTONWOOD AVE, HARTLAND WI 53029-2017
TOWN OF OCONOMOWOC GUS Population: 8,855 (2024) ID: 115300	Township	Municipal Government Within County	Contact: CLERK/TREASURER W359N6812 BROWN ST, OCONOMOWOC WI 53066-1199
VILLAGE OF WAUKESHA GUS Population: 8,573 (2024) ID: 194266	Municipal	Municipal Government Within County	Contact: CHAIRPERSON W250S3567 CENTER RD, WAUKESHA WI 53189-7365
VILLAGE OF MUKWONAGO GUS Population: 8,512 (2024) ID: 115123	Municipal	Municipal Government Within County	Contact: VILLAGE ADMINISTRATOR PO BOX 206, MUKWONAGO WI 53149-0206
TOWN OF MERTON GUS Population: 8,341 (2024) ID: 209926	Township	Municipal Government Within County	Contact: CLERK/DEPUTY TREASURER PO BOX 128, NORTH LAKE WI 53064-0128
VILLAGE OF PEWAUKEE GUS Population: 8,230 (2024) ID: 177272	Municipal	Municipal Government Within County	Contact: VILLAGE ADMINISTRATOR 235 HICKORY ST, PEWAUKEE WI 53072-3592
TOWN OF DELAFIELD GUS Population: 8,093 (2024) ID: 140817	Township	Municipal Government Within County	Contact: CLERK/TREASURER W302N1254 MAPLE AVE, DELAFIELD WI 53018-7000
TOWN OF MUKWONAGO GUS Population: 7,826 (2024) ID: 177795	Township	Municipal Government Within County	W320S8315 BEULAH RD, MUKWONAGO WI 53149-9235
VILLAGE OF VERNON GUS Population: 7,505 (2024) ID: 177797	Municipal	Municipal Government Within County	Contact: CLERK/ADMINISTRATOR W249S8910 CENTER DR, BIG BEND WI 53103-8900
CITY OF DELAFIELD GUS Population: 7,275 (2024) ID: 184087	Municipal	Municipal Government Within County	Contact: MAYOR 500 GENESEE ST, DELAFIELD WI 53018-1896
TOWN OF GENESEE GUS Population: 7,254 (2024) ID: 184091	Township	Municipal Government Within County	Contact: CLERK PO BOX 242, GENESEE DEPOT WI 53127-0242
TOWN OF BROOKFIELD GUS Population: 6,468 (2024) ID: 136803	Township	Municipal Government Within County	Contact: CHAIRMAN 645 JANACEK RD, BROOKFIELD WI 53045-6052
VILLAGE OF ELM GROVE GUS Population: 6,416 (2024) ID: 184088	Municipal	Municipal Government Within County	Contact: CLERK DEPUTY TREASURER 13600 JUNEAU BLVD, ELM GROVE WI 53122-1654
VILLAGE OF SUMMIT GUS Population: 5,346 (2024) ID: 224824	Municipal	Municipal Government Within County	Contact: VILLAGE ADMINISTRATOR 2911 N DOUSMAN RD, OCONOMOWOC WI 53066-4799
TOWN OF OTTAWA GUS Population: 3,667 (2024) ID: 136804	Township	Municipal Government Within County	Contact: CLERK/TREASURER W360S3337 STATE ROAD 67, DOUSMAN WI 53118-9709
VILLAGE OF MERTON GUS Population: 3,655 (2024) ID: 209840	Municipal	Municipal Government Within County	Contact: DEPUTY CLERK TREASURER PO BOX 13, MERTON WI 53056-0013
TOWN OF EAGLE GUS Population: 3,541 (2024) ID: 177794	Township	Municipal Government Within County	Contact: TREASURER PO BOX 327, EAGLE WI 53119-0327
VILLAGE OF WALES GUS Population: 2,913 (2024) ID: 177274	Municipal	Municipal Government Within County	Contact: CLERK TREASURER PO BOX 47, WALES WI 53183-0047
VILLAGE OF DOUSMAN GUS Population: 2,551 (2024) ID: 209839	Municipal	Municipal Government Within County	Contact: PRESIDENT 118 S MAIN ST, DOUSMAN WI 53118-9557
VILLAGE OF NORTH PRAIRIE GUS Population: 2,214 (2024) ID: 177271	Municipal	Municipal Government Within County	Contact: CLERK TREASURER 130 N HARRISON ST, NORTH PRAIRIE WI 53153-9791
VILLAGE OF EAGLE GUS Population: 2,131 (2024) ID: 191847	Municipal	Municipal Government Within County	Contact: CLERK/DEPUTY TREASURER PO BOX 295, EAGLE WI 53119-0295
VILLAGE OF LANNON GUS Population: 2,048 (2024) ID: 136602	Municipal	Municipal Government Within County	Contact: VILLAGE CLERK TREASURER PO BOX 456, LANNON WI 53046-0456
VILLAGE OF BUTLER GUS Population: 1,769 (2024) ID: 136601	Municipal	Municipal Government Within County	Contact: TREASURER 12621 W HAMPTON AVE, STE 103, BUTLER WI 53007-1705
VILLAGE OF BIG BEND GUS Population: 1,502 (2024) ID: 177266	Municipal	Municipal Government Within County	Contact: TREASURER W230S9185 NEVINS ST, BIG BEND WI 53103-9722
VILLAGE OF NASHOTAH GUS Population: 1,313 (2024) ID: 177275	Municipal	Municipal Government Within County	Contact: CLERK/TREASURER PO BOX 123, NASHOTAH WI 53058-0123
VILLAGE OF OCONOMOWOC LAKE GUS Population: 569 (2024) ID: 177276	Municipal	Municipal Government Within County	Contact: DEPUTY CLERK 35328 PABST RD, OCONOMOWOC WI 53066-4516
VILLAGE OF CHENEQUA GUS Population: 534 (2024) ID: 177267	Municipal	Municipal Government Within County	Contact: VILLAGE CLERK TREASURER 31275 W COUNTY RD K, CHENEQUA WI 53029-8606
VILLAGE OF LAC LA BELLE GUS Population: 281 (2024) ID: 177269	Municipal	Municipal Government Within County	Contact: ADMINISTRATOR PO BOX 443, OCONOMOWOC WI 53066-0443