| ZIP Codes: | 22 ZIP Codes (19 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 274 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:55:38 PM |
| Population: | 91,511 [See All] |
| FIPS: | 55027 |
| CBSA: | Beaver Dam, WI |
| Land Area: | 897 sq mi |
| Water Area: | 31 sq mi |
| Coordinates: | 43.4162, -88.6513 |
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91,511 residents live across 22 ZIPs covering 897 sq mi, served by 22 distinct USPS-recognized cities.
Population moved from 90,955 to 91,496 from 2014 to 2024 — a +0.6% change. 11 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 53035 (Iron Ridge, $102,449 median) and poorest ZIP 53032 (Horicon, $56,085) are 6.2 miles apart — a 1.8× income gap across local geography.
Median home values vary 1.9× across this county — from $189,000 in 53032 (Horicon) to $364,200 in 53078 (Rubicon).
Density varies 7× across the county — from 31 people/sq mi in 53922 (Burnett) to 209 in 53034 (Hustisford).
Educational attainment ranges from 15.2% bachelor's+ in 53034 (Hustisford) to 28.2% in 53922 (Burnett) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #18 most populous of 73 counties and ranks #26 for median household income .
Weighted by population, the typical household earns about $76,334 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.2% of adults age 25+ hold a bachelor's degree or higher (13,399 of 66,399 reporting).
19 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 53916 | Beaver Dam | Standard | 22,808 | $71,188 | 113.9 | 1.5% |
| 53963 | Waupun | Standard | 13,952 | $77,631 | 108.0 | 0.6% |
| 53098 | Watertown | Standard | 11,353 | $74,431 | 107.3 | -3.6% |
| 53050 | Mayville | Standard | 7,159 | $71,985 | 73.2 | 4.2% |
| 53032 | Horicon | Standard | 4,898 | $56,085 | 36.3 | 4.4% |
| 53039 | Juneau | Standard | 4,702 | $79,103 | 70.4 | -0.8% |
| 53933 | Fox Lake | Standard | 4,227 | $83,578 | 38.0 | -0.8% |
| 53956 | Randolph | Standard | 3,477 | $84,231 | 81.8 | 5.1% |
| 53048 | Lomira | Standard | 3,420 | $74,464 | 23.0 | 7.3% |
| 53035 | Iron Ridge | Standard | 2,502 | $102,449 | 35.6 | -0.3% |
| 53091 | Theresa | Standard | 2,123 | $82,750 | 25.4 | 4.2% |
| 53006 | Brownsville | Standard | 1,905 | $88,625 | 28.6 | 1.0% |
| 53059 | Neosho | Standard | 1,774 | $91,114 | 34.1 | -0.8% |
| 53078 | Rubicon | Standard | 1,734 | $94,688 | 28.2 | -9.5% |
| 53579 | Reeseville | Standard | 1,732 | $79,792 | 41.7 | 0.8% |
| 53034 | Hustisford | Standard | 1,652 | $78,661 | 7.9 | -12.5% |
| 53922 | Burnett | Standard | 1,057 | $91,500 | 34.6 | 10.3% |
| 53557 | Lowell | Standard | 446 | $91,500 | 8.5 | -5.5% |
| 53016 | Clyman | PO Box | 360 | $70,313 | 0.4 | 5.3% |
| 53003 | Ashippun | PO Box | 130 | $61,510 | 0.1 | -4.4% |
| 53047 | Lebanon | PO Box | 85 | $47,000 | 0.4 | -30.9% |
| 53099 | Woodland | Standard | 15 | — | 0.0 | — |