| ZIP Codes: | 12 ZIP Codes (11 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Code: | 262 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:21 PM |
| Population: | 138,353 [See All] |
| FIPS: | 55131 |
| CBSA: | Milwaukee-Waukesha, WI |
| Land Area: | 458 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 43.3492, -88.2066 |
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138,353 residents live across 12 ZIPs covering 458 sq mi, served by 11 distinct USPS-recognized cities.
Population moved from 132,075 to 138,353 from 2014 to 2024 — a +4.8% change. 8 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 53017 (Colgate, $153,917 median) and poorest ZIP 53095 (West Bend, $80,830) are 13.1 miles apart — a 1.9× income gap across local geography.
Median home values vary 1.8× across this county — from $282,600 in 53090 (West Bend) to $521,700 in 53017 (Colgate).
Density varies 11× across the county — from 65 people/sq mi in 53002 (Allenton) to 714 in 53022 (Germantown).
Educational attainment ranges from 23.3% bachelor's+ in 53040 (Kewaskum) to 55.9% in 53017 (Colgate) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #10 most populous of 73 counties and ranks #2 for median household income .
Weighted by population, the typical household earns about $96,736 across the county — reflecting what a typical resident sees, not a simple ZIP average.
35.2% of adults age 25+ hold a bachelor's degree or higher (34,908 of 99,123 reporting).
11 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 53095 | West Bend | Standard | 27,817 | $80,830 | 72.7 | 2.2% |
| 53027 | Hartford | Standard | 23,118 | $91,150 | 93.0 | 4.5% |
| 53090 | West Bend | Standard | 21,625 | $86,152 | 58.3 | -1.5% |
| 53022 | Germantown | Standard | 20,046 | $100,890 | 28.1 | 4.5% |
| 53037 | Jackson | Standard | 10,254 | $97,611 | 23.0 | 11.5% |
| 53086 | Slinger | Standard | 9,426 | $103,426 | 21.7 | 16.5% |
| 53040 | Kewaskum | Standard | 8,630 | $96,096 | 65.7 | 7.7% |
| 53033 | Hubertus | Standard | 6,286 | $136,786 | 16.2 | 35.2% |
| 53017 | Colgate | Standard | 5,458 | $153,917 | 17.1 | -7.4% |
| 53076 | Richfield | Standard | 3,109 | $107,414 | 22.4 | -3.3% |
| 53002 | Allenton | Standard | 2,584 | $117,500 | 39.8 | 1.1% |
| 53060 | Newburg | PO Box | — | — | 0.0 | — |