| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 507 / 924 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:40 PM |
| Population: | 19,181 [See All] |
| FIPS: | 27161 |
| Land Area: | 449 sq mi |
| Water Area: | 11 sq mi |
| Coordinates: | 43.9860, -93.6230 |
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19,181 residents live across 4 ZIPs covering 449 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 19,501 to 19,181 from 2014 to 2024 — a -1.6% change. 0 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 56048 (Janesville, $85,532 median) and poorest ZIP 56091 (Waldorf, $56,250) are 11.6 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.5× across this county — from $154,800 in 56091 (Waldorf) to $238,600 in 56048 (Janesville).
Density varies 5× across the county — from 14 people/sq mi in 56091 (Waldorf) to 71 in 56093 (Waseca).
Educational attainment ranges from 19.0% bachelor's+ in 56091 (Waldorf) to 26.4% in 56048 (Janesville) — the breadth of educational profiles across the area.
Within Minnesota, this is the #51 most populous of 93 counties and ranks #56 for median household income .
Weighted by population, the typical household earns about $76,293 across the county — reflecting what a typical resident sees, not a simple ZIP average.
21.2% of adults age 25+ hold a bachelor's degree or higher (2,809 of 13,246 reporting).
4 Standard delivery, 0 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.