| ZIP Codes: | 15 ZIP Codes (12 Standard, 2 PO Box, 1 Unique) [See All] |
| Area Codes: | 353 / 608 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:20 PM |
| Population: | 64,216 [See All] |
| FIPS: | 55111 |
| CBSA: | Baraboo, WI |
| Land Area: | 881 sq mi |
| Water Area: | 20 sq mi |
| Coordinates: | 43.4207, -89.9349 |
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64,216 residents live across 15 ZIPs covering 881 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 61,331 to 63,981 from 2014 to 2024 — a +4.3% change. 6 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 53578 (Prairie Du Sac, $105,610 median) and poorest ZIP 53951 (North Freedom, $71,970) are 6.9 miles apart — a 1.5× income gap across local geography.
Median home values vary 2.2× across this county — from $190,400 in 53951 (North Freedom) to $427,600 in 53561 (Merrimac).
Density varies 6× across the county — from 24 people/sq mi in 53588 (Spring Green) to 152 in 53913 (Baraboo).
Educational attainment ranges from 13.5% bachelor's+ in 53961 (Rock Springs) to 43.2% in 53578 (Prairie Du Sac) — the breadth of educational profiles across the area.
Within Wisconsin, this is the #26 most populous of 73 counties and ranks #12 for median household income .
Hosts 1 single-entity Unique ZIP: 53958Reedsburg .
Weighted by population, the typical household earns about $82,635 across the county — reflecting what a typical resident sees, not a simple ZIP average.
28.1% of adults age 25+ hold a bachelor's degree or higher (12,806 of 45,562 reporting).
12 Standard delivery, 2 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 |
|---|---|---|---|---|---|---|
| 53913 | Baraboo | Standard | 21,704 | $74,629 | 142.6 | 8.6% |
| 53959 | Reedsburg | Standard | 14,451 | $77,924 | 120.0 | 5.9% |
| 53578 | Prairie Du Sac | Standard | 6,503 | $105,610 | 46.5 | 3.8% |
| 53583 | Sauk City | Standard | 5,816 | $97,286 | 70.7 | -0.2% |
| 53588 | Spring Green | Standard | 3,770 | $83,417 | 155.4 | -5.2% |
| 53941 | La Valle | Standard | 2,817 | $82,537 | 65.3 | -11.6% |
| 53951 | North Freedom | Standard | 2,452 | $71,970 | 71.4 | -8.9% |
| 53561 | Merrimac | Standard | 1,872 | $91,103 | 39.5 | 27.4% |
| 53577 | Plain | Standard | 1,363 | $96,500 | 46.8 | -3.3% |
| 53943 | Loganville | Standard | 1,245 | $73,000 | 50.4 | 18.7% |
| 53937 | Hillpoint | Standard | 1,157 | $87,292 | 46.7 | 17.7% |
| 53961 | Rock Springs | Standard | 831 | $77,298 | 24.2 | -2.8% |
| 53942 | Lime Ridge | PO Box | 235 | $112,292 | 1.6 | — |
| 53940 | Lake Delton | PO Box | 0 | — | 0.0 | — |
| 53958 | Reedsburg | Unique | — | — | 0.0 | — |