| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 507 / 924 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:38 PM |
| Population: | 33,670 [See All] |
| FIPS: | 27103 |
| CBSA: | Mankato, MN |
| Land Area: | 356 sq mi |
| Water Area: | 17 sq mi |
| Coordinates: | 44.3163, -94.1993 |
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33,670 residents live across 5 ZIPs covering 356 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 32,095 to 33,670 from 2014 to 2024 — a +4.9% change. 3 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 56021 (Courtland, $96,563 median) and poorest ZIP 56082 (Saint Peter, $71,456) are 16.5 miles apart — a 1.4× income gap across local geography.
Median home values vary 1.5× across this county — from $198,200 in 56054 (Lafayette) to $293,700 in 56074 (Nicollet).
Density varies 24× across the county — from 15 people/sq mi in 56054 (Lafayette) to 352 in 56003 (Mankato).
Educational attainment ranges from 25.3% bachelor's+ in 56054 (Lafayette) to 40.9% in 56003 (Mankato) — the breadth of educational profiles across the area.
Within Minnesota, this is the #34 most populous of 93 counties and ranks #17 for median household income .
Weighted by population, the typical household earns about $79,026 across the county — reflecting what a typical resident sees, not a simple ZIP average.
36.6% of adults age 25+ hold a bachelor's degree or higher (8,000 of 21,848 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.