| ZIP Codes: | 6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 353 / 608 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:20 PM |
| Population: | 15,640 [See All] |
| FIPS: | 55103 |
| Land Area: | 436 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 43.3424, -90.3597 |
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15,640 residents live across 6 ZIPs covering 436 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 16,440 to 15,633 from 2014 to 2024 — a -4.9% change. 1 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 54664 (Viola, $72,898 median) and poorest ZIP 53540 (Gotham, $61,458) are 24.8 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.7× across this county — from $127,500 in 53540 (Gotham) to $222,400 in 53924 (Cazenovia).
Density varies 88× across the county — from 18 people/sq mi in 53924 (Cazenovia) to 1,580 in 53540 (Gotham).
Educational attainment ranges from 6.3% bachelor's+ in 53540 (Gotham) to 28.4% in 54664 (Viola) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #60 most populous of 73 counties and ranks #53 for median household income .
Weighted by population, the typical household earns about $66,715 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.3% of adults age 25+ hold a bachelor's degree or higher (2,390 of 11,215 reporting).
4 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.