| ZIP Codes: | 9 ZIP Codes (7 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 353 / 608 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:18 PM |
| Population: | 15,595 [See All] |
| FIPS: | 55023 |
| Land Area: | 573 sq mi |
| Water Area: | 11 sq mi |
| Coordinates: | 43.2425, -90.9389 |
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15,595 residents live across 9 ZIPs covering 573 sq mi, served by 9 distinct USPS-recognized cities.
Population moved from 16,186 to 15,595 from 2014 to 2024 — a -3.7% change. 5 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 53826 (Wauzeka, $73,438 median) and poorest ZIP 54645 (Mount Sterling , $50,833) are 13.4 miles apart — a 1.4× income gap across local geography.
Median home values vary 2.6× across this county — from $98,600 in 54654 (Seneca) to $253,000 in 54626 (Eastman).
Density varies 33× across the county — from 11 people/sq mi in 54628 (Ferryville) to 357 in 54654 (Seneca).
Educational attainment ranges from 14.8% bachelor's+ in 54657 (Steuben) to 33.0% in 54654 (Seneca) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #61 most populous of 73 counties and ranks #62 for median household income .
Weighted by population, the typical household earns about $62,625 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.2% of adults age 25+ hold a bachelor's degree or higher (2,096 of 11,514 reporting).
7 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 53821 | Prairie Du Chien | Standard | 7,780 | $60,647 | 108.7 | -6.8% |
| 54655 | Soldiers Grove | Standard | 1,798 | $56,010 | 90.0 | 0.1% |
| 54631 | Gays Mills | Standard | 1,737 | $65,417 | 108.5 | -2.1% |
| 54626 | Eastman | Standard | 1,423 | $69,926 | 76.7 | 9.9% |
| 53826 | Wauzeka | Standard | 1,323 | $73,438 | 75.9 | 2.1% |
| 54628 | Ferryville | Standard | 912 | $57,167 | 83.9 | -16.5% |
| 54657 | Steuben | Standard | 357 | $70,750 | 28.9 | -10.1% |
| 54654 | Seneca | PO Box | 168 | $68,304 | 0.5 | 47.4% |
| 54645 | Mount Sterling | PO Box | 97 | $50,833 | 0.0 | 38.6% |