Sauk County, WI ZIP Codes
Wisconsin (WI) · 15 ZIP codes · 14 cities
15
ZIP codes
65,697
population (2021)
+6.0%
pop change since 2010
55111
FIPS code
Sauk County ZIP code map
About Sauk County
Sauk County is located in Wisconsin and contains 15 ZIP codes across 14 cities and communities.
The county's population was 65,697 as of 2021,
an increase of
6% from 61,976 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Sauk County is 55111.
| Population | |
|---|---|
| 2021 population | 65,697 |
| 2010 population | 61,976 |
| Change | +6.0% |
| County details | |
|---|---|
| State | Wisconsin |
| FIPS code | 55111 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Sauk County
Baraboo
Hillpoint
La Valle
Lake Delton
Lime Ridge
Loganville
Merrimac
North Freedom
Plain
Prairie Du Sac
Reedsburg
Rock Springs
Sauk City
Spring Green
ZIP codes for Sauk County, WI (15)
| ZIP code | City | County | Map |
|---|---|---|---|
| 53561 | Merrimac | Sauk | View map |
| 53577 | Plain | Sauk | View map |
| 53578 | Prairie Du Sac | Sauk | View map |
| 53583 | Sauk City | Sauk | View map |
| 53588 | Spring Green | Sauk | View map |
| 53913 | Baraboo | Sauk | View map |
| 53937 | Hillpoint | Sauk | View map |
| 53940 | Lake Delton | Sauk | View map |
| 53941 | La Valle | Sauk | View map |
| 53942 | Lime Ridge | Sauk | View map |
| 53943 | Loganville | Sauk | View map |
| 53951 | North Freedom | Sauk | View map |
| 53958 | Reedsburg | Sauk | View map |
| 53959 | Reedsburg | Sauk | View map |
| 53961 | Rock Springs | Sauk | View map |
Demographics & statistics
75,216
Population
42.6
Median age
$74,506
Median household income
$37,937
Per capita income
$237,669
Median home value
$936
Median monthly rent
79.5%
Home ownership
8.1%
Poverty rate
2.3%
Unemployment
28,276
Housing units
23.6%
Bachelor's or higher
Age distribution
Male
Female
2,042
Under 5
2,007
2,299
5–9
2,261
2,368
10–14
2,328
2,210
15–19
2,172
1,961
20–24
1,928
4,265
25–34
4,194
4,867
35–44
4,785
4,659
45–54
4,581
2,916
55–59
2,866
2,845
60–64
2,797
4,494
65–74
4,418
2,049
75–84
2,014
953
85+
937
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 16,240 | 23.1% |
| 18 and over | 58,976 | 76.9% |
| 65 and over | 14,865 | 19.2% |
| Median age | 42.6 years | |
Race & ethnicity
White
88.2%
Two or more races
4.2%
Hispanic or Latino
3.8%
Other race
1.6%
Black or African American
1%
American Indian / Alaska Native
0.8%
Asian
0.4%
| Group | Count | % |
|---|---|---|
| White | 68,969 | 88.2% |
| Two or more races | 3,253 | 4.2% |
| Hispanic or Latino | 3,004 | 3.8% |
| Other race | 1,264 | 1.6% |
| Black or African American | 786 | 1% |
| American Indian / Alaska Native | 637 | 0.8% |
| Asian | 307 | 0.4% |
Household income
Under $10k
3.6%
$10k–$15k
2.4%
$15k–$25k
5.6%
$25k–$35k
7.0%
$35k–$50k
10.8%
$50k–$75k
19.1%
$75k–$100k
15.9%
$100k–$150k
20.5%
$150k–$200k
8.4%
$200k+
6.6%
| Range | % of households |
|---|---|
| Under $10k | 3.6% |
| $10k–$15k | 2.4% |
| $15k–$25k | 5.6% |
| $25k–$35k | 7.0% |
| $35k–$50k | 10.8% |
| $50k–$75k | 19.1% |
| $75k–$100k | 15.9% |
| $100k–$150k | 20.5% |
| $150k–$200k | 8.4% |
| $200k+ | 6.6% |
| Median income | $74,506 |
Housing
Home values
Under $50k
5.5%
$50k–$100k
5.5%
$100k–$150k
12.4%
$150k–$200k
16.3%
$200k–$300k
25.6%
$300k–$500k
23.3%
$500k–$1M
9.4%
$1M+
1.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $237,669 |
| Median rent / month | $936 |
| Owner occupied | 79.5% |
| Renter occupied | 20.5% |
| Vacant | 14.0% |
| Single-family detached | 79.1% |
| Large apartment buildings | 1.9% |
| Mobile homes | 5.3% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.58 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.3% |
| 2010–2019 | 5.2% |
| 2000–2009 | 15.1% |
| 1990–1999 | 14.5% |
| 1980–1989 | 10.6% |
| 1970–1979 | 13.0% |
| 1960–1969 | 6.1% |
| 1950–1959 | 6.1% |
| 1940–1949 | 4.6% |
| 1939 or earlier | 24.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.7% |
| 1 bedroom | 5.6% |
| 2 bedrooms | 24.0% |
| 3 bedrooms | 42.1% |
| 4 bedrooms | 20.3% |
| 5+ bedrooms | 6.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 5.2% |
| 1 vehicle | 25.5% |
| 2 vehicles | 38.0% |
| 3 or more | 31.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 42.7% |
| Electricity | 11.3% |
| Propane / LP gas | 31.5% |
| Fuel oil | 2.0% |
| Wood | 11.6% |
| No fuel used | 0.2% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 16,208 | 56.2% |
| Cohabiting couple | 2,209 | 7.4% |
| Male householder, no spouse | 5,970 | 18.1% |
| Female householder, no spouse | 7,102 | 18.4% |
| Households with children under 18 | 8,428 | 28.7% |
| Households with seniors (65+) | 10,472 | 32.7% |
| Average household size | 2.49 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 30.9% | 22.2% |
| Married | 56.2% | 57.5% |
| Separated | 0.6% | 1.2% |
| Widowed | 2.7% | 8.3% |
| Divorced | 9.6% | 10.8% |
Education
Less than 9th grade
4.3%
Some HS, no diploma
5.0%
HS graduate
35.0%
Some college, no degree
20.4%
Associate's degree
11.7%
Bachelor's degree
16.7%
Graduate / professional
6.9%
| Metric | % |
|---|---|
| HS diploma or higher | 90.8% |
| Bachelor's or higher | 23.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 959 | 5.9% |
| Kindergarten | 919 | 5.4% |
| Elementary school | 7,283 | 49.5% |
| High school | 3,555 | 24.7% |
| College / grad school | 2,403 | 14.5% |
Employment
Industry of employment
Education & healthcare
19.6%
Manufacturing
15.7%
Retail trade
13.1%
Construction
10.4%
Arts, food & hospitality
8.8%
Professional & management
6.7%
Finance & real estate
5.0%
Transportation & utilities
4.9%
Agriculture & mining
4.6%
Other services
4.1%
Public administration
3.6%
Wholesale trade
2.8%
Information
0.9%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 33.0% |
| Service | 16.6% |
| Sales & office | 19.0% |
| Natural resources & construction | 13.0% |
| Production & transportation | 18.3% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.1% |
| Government | 11.8% |
| Self-employed | 7.8% |
| Unpaid family workers | 0.4% |
Commute
| Method | % |
|---|---|
| Drive alone | 78.7% |
| Carpool | 8.5% |
| Public transit | 0.3% |
| Walk | 2.9% |
| Other means | 2.2% |
| Avg commute (minutes) | 24.9 |
Poverty
All people
8.1%
Under 18 years
11.0%
18 and over
7.1%
Married-couple families
3.3%
Female-led households
20.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 34.1% |
| Retirement income | 25.5% |
| Supplemental Security | 4.4% |
| Cash public assistance | 2.2% |
| Food stamps / SNAP | 8.6% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 32.5% |
| High cholesterol | 34.6% |
| Heart disease | 6.3% |
| Stroke | 3.0% |
| Asthma | 9.6% |
| Arthritis | 24.8% |
| Kidney disease | 2.8% |
| Pulmonary disease | 6.4% |
| Cancer | 7.1% |
| Behavior / access | % |
|---|---|
| Binge drinking | 24.6% |
| No physical activity | 20.7% |
| Less than 7 hrs sleep | 31.3% |
| Fair or poor health | 12.2% |
| Poor mental health | 13.4% |
| Poor physical health | 10.0% |
| No health insurance | 10.5% |
| Visited doctor (checkup) | 73.5% |
| Visited dentist | 67.7% |
| Cholesterol screening | 87.5% |
| Teeth loss | 12.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 4,677 | 7.2% |
| Disability | % |
|---|---|
| Any disability | 11.3% |
| Under 18 | 3.5% |
| 18–64 years | 8.5% |
| 65 and over | 29.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 74.2% |
| Public insurance | 32.9% |
| Uninsured under 19 | 11.1% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 71,167 | 94.2% |
| Spanish | 1,679 | 3.0% |
| Other Indo-European | 1,056 | 1.2% |
| Asian & Pacific Islander | 541 | 1.7% |
| Other languages | 74 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 72,805 | 97.5% |
| Born in same state | 72,314 | 97.1% |
| Born in different state | 56,500 | 77.2% |
| Foreign born | 491 | 0.4% |
| Naturalized citizen | 2,411 | 2.5% |
| Not a US citizen | 1,011 | 35.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 9,845 | 13.1% |
| French | 6,181 | 8.2% |
| Polish | 5,932 | 7.9% |
| Arab | 2,916 | 3.9% |
| English | 1,176 | 1.6% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 676 | 0.9% |
| German | 603 | 0.8% |
| Norwegian | 147 | 0.2% |
| Irish | 114 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.1% |
| Internet access | 90.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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