| ZIP Codes: | 14 ZIP Codes (10 Standard, 3 PO Box, 1 Unique) [See All] |
| Area Codes: | 274 / 353 / 608 / 920 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:18 PM |
| Population: | 65,924 [See All] |
| FIPS: | 55021 |
| CBSA: | Madison, WI |
| Land Area: | 944 sq mi |
| Water Area: | 34 sq mi |
| Coordinates: | 43.4727, -89.2739 |
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65,924 residents live across 14 ZIPs covering 944 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 63,653 to 65,924 from 2014 to 2024 — a +3.6% change. 8 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 53555 (Lodi, $119,305 median) and poorest ZIP 53965 (Wisconsin Dells, $66,667) are 27.7 miles apart — a 1.8× income gap across local geography.
Median home values vary 2.1× across this county — from $190,800 in 53969 (Wyocena) to $392,200 in 53555 (Lodi).
Density varies 10× across the county — from 30 people/sq mi in 53923 (Cambria) to 293 in 53969 (Wyocena).
Educational attainment ranges from 16.7% bachelor's+ in 53954 (Pardeeville) to 39.0% in 53555 (Lodi) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #24 most populous of 73 counties and ranks #14 for median household income .
Hosts 1 single-entity Unique ZIP: 53957J W Jung Seed Co .
Weighted by population, the typical household earns about $85,367 across the county — reflecting what a typical resident sees, not a simple ZIP average.
25.5% of adults age 25+ hold a bachelor's degree or higher (12,207 of 47,854 reporting).
10 Standard delivery, 3 PO Box only, 1 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 |
|---|---|---|---|---|---|---|
| 53901 | Portage | Standard | 14,291 | $74,092 | 149.2 | -3.4% |
| 53965 | Wisconsin Dells | Standard | 10,818 | $66,667 | 172.0 | 9.0% |
| 53555 | Lodi | Standard | 8,933 | $119,305 | 87.4 | 5.2% |
| 53925 | Columbus | Standard | 8,754 | $84,044 | 127.1 | 11.4% |
| 53954 | Pardeeville | Standard | 6,678 | $83,207 | 84.0 | -6.7% |
| 53955 | Poynette | Standard | 6,125 | $101,134 | 85.7 | 14.6% |
| 53960 | Rio | Standard | 3,396 | $84,911 | 88.0 | 4.8% |
| 53932 | Fall River | Standard | 2,495 | $85,781 | 41.4 | 5.5% |
| 53923 | Cambria | Standard | 2,295 | $72,500 | 76.6 | 7.3% |
| 53911 | Arlington | Standard | 1,450 | $100,625 | 30.0 | 3.8% |
| 53969 | Wyocena | PO Box | 329 | $77,222 | 1.1 | -15.6% |
| 53935 | Friesland | PO Box | 297 | $86,250 | 1.0 | -16.1% |
| 53928 | Doylestown | PO Box | 63 | $85,625 | 0.3 | -66.8% |
| 53957 | Randolph | Unique | — | — | 0.0 | — |