County or equivalent · 55111
Sauk County, Wisconsin
Annual housing permits and reporting coverage
- Published estimate · 2025
- 231
- Reported only · 2025
- 160
- Added by estimation · 2025
- 71
Reported and estimated units by year
| Year and source | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| 2023 Census file | 340 | 340 | 0 |
| 2024 Census file | 539 | 506 | 33 |
| 2025 Census file | 231 | 160 | 71 |
2024 to 2025 · published estimate -308 units · reported only -346 · added by estimation +38. This split describes the difference between the published columns.
What types of housing were authorized?
| Units in building | Published estimate | Reported only | Added by estimation |
|---|---|---|---|
| One unit | 201 | 130 | 71 |
| Two units | 30 | 30 | 0 |
| Three or four units | 0 | 0 | 0 |
| Five or more units | 0 | 0 | 0 |
Local housing and rent context
| Measure | Estimate and margin |
|---|---|
| Housing units · Census table B25001 | 31,496 ± 62 |
| Median gross monthly rent · Census table B25064 | $1,018 ± $31 |
| Gross rent at least 30% of income · Census table B25070 | 39.8% ± 4.7 percentage points |
| Gross rent at least 50% of income | 19.2% ± 3.2 percentage points |
| Estimated households with a computed rent-to-income ratio | 7,262 |
The 2025 permit estimate amounts to 7.3 authorized units per 1,000 housing units in the ACS estimate. The numerator and denominator cover different periods.
The Vintage 2025 Census housing stock estimate changed from 32,100 in 2024 to 32,616 in 2025 (+516 units). This is a separate model-based inventory estimate.
Permit offices listed under this county code
Use the office pages for their own histories and source coverage notes.
- BarabooPermit office 55053000 · Sauk County · 32 authorized units
- Delton townPermit office 55229500 · Sauk County · 9 authorized units
- Fairfield townPermit office 55287000 · Sauk County · 2 authorized units
- Ironton villagePermit office 55418000 · Sauk County · 0 authorized units
- La Valle villagePermit office 55456500 · Sauk County · Latest year unavailable
- Lake Delton villagePermit office 55460500 · Sauk County · 7 authorized units
- Lime Ridge villagePermit office 55484500 · Sauk County · 0 authorized units
- Loganville villagePermit office 55501500 · Sauk County · 0 authorized units
- Merrimac townPermit office 55561500 · Sauk County · 13 authorized units
- Merrimac villagePermit office 55562000 · Sauk County · 2 authorized units
- North Freedom villagePermit office 55628000 · Sauk County · Latest year unavailable
- Plain villagePermit office 55683000 · Sauk County · 0 authorized units
- Prairie du Sac villagePermit office 55705500 · Sauk County · 14 authorized units
- ReedsburgPermit office 55723000 · Sauk County · 17 authorized units
- Rock Springs villagePermit office 55747500 · Sauk County · 2 authorized units
- Sauk City villagePermit office 55769000 · Sauk County · 17 authorized units
- Sauk County Part Unincorporated AreaPermit office 55769500 · Sauk County · 91 authorized units
- Spring Green villagePermit office 55815500 · Sauk County · 16 authorized units
- Washington townPermit office 55909500 · Sauk County · 7 authorized units
- West Baraboo villagePermit office 55932500 · Sauk County · 2 authorized units
Sources and definitions
How to read these figures
- The Census Building Permits Survey counts new privately owned housing units authorized by permits. One permit can cover multiple units. The counts describe authorizations, a stage before starts and completions.
- The published estimate includes reported units and Census estimates that fill gaps. The difference is calculated from those two columns. Reported-only units can include records from approved alternative sources. A missing report can leave an office without a usable count.
- County and state totals come from their own Census files. Permit offices can cover places across county lines or areas served by another jurisdiction. The office’s county field is used for navigation.
- ACS housing inventory and rents are survey estimates for 2020–2024. Gross rent includes rent and separately paid utilities or fuels. Rent burden is the share paying at least 30% of income among cash-rent households with a computed ratio. Margins are at 90% confidence. The margin for rent burden is approximate.
- Vintage 2025 county housing stock is a separate Census series. Its model uses building-permit data alongside other inputs. Read stock change and permits as separate measures.
Public sources retrieved November 10, 2026. Building Permits Survey annual data · Survey methodology · American Community Survey data · Download the comparison