Cities in Washington County, Wisconsin by Population (2024)

There are 31 cities in Washington County, Wisconsin.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Milwaukee1Wisconsin556,111577,207-0.94%5,78296.17
West Bend2Wisconsin31,94631,7060.19%2,05115.57
Germantown3Wisconsin21,06620,8820.22%61334.38
Oconomowoc4Wisconsin18,82718,2450.78%1,60111.76
Hartford5Wisconsin15,95815,7000.4%1,7828.95
Grafton6Wisconsin12,78212,0841.38%2,4405.24
Cedarburg7Wisconsin12,64612,1690.95%2,5704.92
Richfield8Wisconsin11,87211,7460.26%33135.91
Hartland9Wisconsin10,2519,5071.85%1,8775.46
Jackson10Wisconsin8,0507,8480.63%2,0843.86
Delafield11Wisconsin7,2067,1930.04%7669.41
Slinger12Wisconsin6,4676,0491.63%1,1785.49
Summit13Wisconsin5,4414,8242.91%26320.66
Okauchee Lake14Wisconsin4,8904,3732.09%1,3103.73
Kewaskum15Wisconsin4,4744,3170.88%1,9012.35
Merton16Wisconsin3,6023,4571.01%1,0863.32
Dousman17Wisconsin2,4142,429-0.17%8102.98
Fredonia18Wisconsin2,2872,2750.13%1,0232.24
Campbellsport19Wisconsin1,9441,9040.52%1,4231.37
Random Lake20Wisconsin1,5781,5620.25%1,0511.50
Nashotah21Wisconsin1,3071,319-0.23%8031.63
Theresa22Wisconsin1,2571,2520.08%1,7030.74
Newburg23Wisconsin1,1281,144-0.35%1,1730.96
Allenton24Wisconsin9117594.35%5841.56
Ashippun25Wisconsin8831,027-3.92%8591.03
Oconomowoc Lake26Wisconsin5885720.69%3061.92
Chenequa27Wisconsin5445280.74%1573.46
Adell28Wisconsin488499-0.61%8750.56
Waubeka29Wisconsin432624-10%1762.45
Lac La Belle30Wisconsin2832780.36%2561.11
North Lake31Wisconsin118300-27.61%4940.24
showing: 31 rows

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Washington County, Wisconsin?

Milwaukee is the largest city in Washington County.

What is the smallest city in Washington County, Wisconsin?

North Lake is the smallest city in Washington County.

How many cities are in Washington County?

There are 31 cities in Washington County, Wisconsin.

Frequently Asked Questions