| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 274 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:19 PM |
| Population: | 21,535 [See All] |
| FIPS: | 55061 |
| CBSA: | Green Bay, WI |
| Land Area: | 341 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 44.5546, -87.6128 |
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21,535 residents live across 4 ZIPs covering 341 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 21,123 to 21,535 from 2014 to 2024 — a +2.0% change. 2 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 54205 (Casco, $90,781 median) and poorest ZIP 54201 (Algoma, $67,542) are 6.6 miles apart — a 1.3× income gap across local geography.
Median home values vary 1.6× across this county — from $183,200 in 54201 (Algoma) to $284,700 in 54217 (Luxemburg).
Density varies 2× across the county — from 48 people/sq mi in 54205 (Casco) to 73 in 54217 (Luxemburg).
Educational attainment ranges from 18.7% bachelor's+ in 54216 (Kewaunee) to 26.8% in 54217 (Luxemburg) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #49 most populous of 73 counties and ranks #19 for median household income .
Weighted by population, the typical household earns about $82,713 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.2% of adults age 25+ hold a bachelor's degree or higher (3,427 of 15,452 reporting).
4 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.