Lake County, SD ZIP Codes
South Dakota (SD) · 7 ZIP codes · 7 cities
7
ZIP codes
10,851
population (2021)
-3.1%
pop change since 2010
46079
FIPS code
Lake County ZIP code map
About Lake County
Lake County is located in South Dakota and contains 7 ZIP codes across 7 cities and communities.
The county's population was 10,851 as of 2021,
a decrease of
3.1% from 11,200 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Lake County is 46079.
| Population | |
|---|---|
| 2021 population | 10,851 |
| 2010 population | 11,200 |
| Change | -3.1% |
| County details | |
|---|---|
| State | South Dakota |
| FIPS code | 46079 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Lake County
ZIP codes for Lake County, SD (7)
| ZIP code | City | County | Map |
|---|---|---|---|
| 57016 | Chester | Lake | View map |
| 57042 | Madison | Lake | View map |
| 57050 | Nunda | Lake | View map |
| 57054 | Ramona | Lake | View map |
| 57057 | Rutland | Lake | View map |
| 57075 | Wentworth | Lake | View map |
| 57076 | Winfred | Lake | View map |
Demographics & statistics
10,984
Population
44.2
Median age
$75,890
Median household income
$44,553
Per capita income
$226,500
Median home value
$562
Median monthly rent
85.5%
Home ownership
9.6%
Poverty rate
0.8%
Unemployment
4,409
Housing units
32.6%
Bachelor's or higher
Age distribution
Male
Female
308
Under 5
265
362
5–9
312
335
10–14
289
436
15–19
376
424
20–24
365
580
25–34
499
602
35–44
518
560
45–54
482
488
55–59
420
445
60–64
383
942
65–74
810
275
75–84
236
146
85+
126
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,242 | 23.7% |
| 18 and over | 8,742 | 76.3% |
| 65 and over | 2,535 | 21.7% |
| Median age | 44.2 years | |
Race & ethnicity
White
92.2%
Two or more races
2.7%
American Indian / Alaska Native
2.2%
Hispanic or Latino
1.4%
Other race
1%
Black or African American
0.4%
Asian
0.1%
| Group | Count | % |
|---|---|---|
| White | 10,271 | 92.2% |
| Two or more races | 297 | 2.7% |
| American Indian / Alaska Native | 249 | 2.2% |
| Hispanic or Latino | 155 | 1.4% |
| Other race | 109 | 1% |
| Black or African American | 42 | 0.4% |
| Asian | 12 | 0.1% |
Household income
Under $10k
2.6%
$10k–$15k
2.6%
$15k–$25k
6.7%
$25k–$35k
7.9%
$35k–$50k
9.2%
$50k–$75k
16.2%
$75k–$100k
12.2%
$100k–$150k
25.6%
$150k–$200k
8.5%
$200k+
8.6%
| Range | % of households |
|---|---|
| Under $10k | 2.6% |
| $10k–$15k | 2.6% |
| $15k–$25k | 6.7% |
| $25k–$35k | 7.9% |
| $35k–$50k | 9.2% |
| $50k–$75k | 16.2% |
| $75k–$100k | 12.2% |
| $100k–$150k | 25.6% |
| $150k–$200k | 8.5% |
| $200k+ | 8.6% |
| Median income | $75,890 |
Housing
Home values
Under $50k
9.4%
$50k–$100k
12.1%
$100k–$150k
16.1%
$150k–$200k
13.6%
$200k–$300k
15.9%
$300k–$500k
18.5%
$500k–$1M
11.5%
$1M+
3.0%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $226,500 |
| Median rent / month | $562 |
| Owner occupied | 85.5% |
| Renter occupied | 14.5% |
| Vacant | 19.1% |
| Single-family detached | 83.2% |
| Large apartment buildings | 1.3% |
| Mobile homes | 7.5% |
| Median rooms | 6.9 |
| Avg household size (owned) | 2.37 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.3% |
| 2010–2019 | 10.2% |
| 2000–2009 | 9.9% |
| 1990–1999 | 10.5% |
| 1980–1989 | 9.4% |
| 1970–1979 | 11.5% |
| 1960–1969 | 7.0% |
| 1950–1959 | 4.1% |
| 1940–1949 | 5.8% |
| 1939 or earlier | 31.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.4% |
| 1 bedroom | 7.4% |
| 2 bedrooms | 26.0% |
| 3 bedrooms | 33.6% |
| 4 bedrooms | 17.3% |
| 5+ bedrooms | 14.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.9% |
| 1 vehicle | 16.8% |
| 2 vehicles | 35.4% |
| 3 or more | 47.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 22.9% |
| Electricity | 32.2% |
| Propane / LP gas | 34.3% |
| Fuel oil | 0.8% |
| Wood | 0.7% |
| No fuel used | 0.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,218 | 55.0% |
| Cohabiting couple | 274 | 2.3% |
| Male householder, no spouse | 972 | 23.9% |
| Female householder, no spouse | 968 | 19.0% |
| Households with children under 18 | 1,029 | 25.4% |
| Households with seniors (65+) | 1,648 | 35.0% |
| Average household size | 2.39 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 26.9% | 20.7% |
| Married | 61.2% | 60.2% |
| Separated | 1.6% | 0.9% |
| Widowed | 1.7% | 8.6% |
| Divorced | 8.7% | 9.6% |
Education
Less than 9th grade
3.6%
Some HS, no diploma
2.8%
HS graduate
26.4%
Some college, no degree
24.8%
Associate's degree
9.9%
Bachelor's degree
26.2%
Graduate / professional
6.4%
| Metric | % |
|---|---|
| HS diploma or higher | 93.7% |
| Bachelor's or higher | 32.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 166 | 3.5% |
| Kindergarten | 140 | 4.7% |
| Elementary school | 1,063 | 51.1% |
| High school | 453 | 26.6% |
| College / grad school | 884 | 14.1% |
Employment
Industry of employment
Education & healthcare
19.2%
Agriculture & mining
18.6%
Manufacturing
14.3%
Construction
10.3%
Retail trade
8.5%
Transportation & utilities
6.7%
Professional & management
5.8%
Finance & real estate
5.0%
Arts, food & hospitality
4.5%
Other services
3.2%
Wholesale trade
2.2%
Public administration
1.5%
Information
0.4%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 39.3% |
| Service | 12.0% |
| Sales & office | 15.9% |
| Natural resources & construction | 18.8% |
| Production & transportation | 14.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 67.7% |
| Government | 14.2% |
| Self-employed | 18.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 70.9% |
| Carpool | 9.3% |
| Public transit | 0.4% |
| Walk | 4.7% |
| Other means | 1.9% |
| Avg commute (minutes) | 23.5 |
Poverty
All people
9.6%
Under 18 years
11.8%
18 and over
8.1%
Married-couple families
6.7%
Female-led households
6.7%
Income support
| Source | % of households |
|---|---|
| Social Security | 36.7% |
| Retirement income | 20.5% |
| Supplemental Security | 2.4% |
| Cash public assistance | 0.9% |
| Food stamps / SNAP | 2.7% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 29.0% |
| High cholesterol | 29.9% |
| Heart disease | 6.5% |
| Stroke | 2.8% |
| Asthma | 8.5% |
| Arthritis | 23.1% |
| Kidney disease | 2.7% |
| Pulmonary disease | 5.2% |
| Cancer | 7.5% |
| Behavior / access | % |
|---|---|
| Binge drinking | 20.6% |
| No physical activity | 20.5% |
| Less than 7 hrs sleep | 26.8% |
| Fair or poor health | 9.6% |
| Poor mental health | 9.8% |
| Poor physical health | 7.9% |
| No health insurance | 10.2% |
| Visited doctor (checkup) | 74.9% |
| Visited dentist | 72.2% |
| Cholesterol screening | 90.1% |
| Teeth loss | 11.1% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 613 | 6.8% |
| Disability | % |
|---|---|
| Any disability | 11.1% |
| Under 18 | 4.5% |
| 18–64 years | 7.3% |
| 65 and over | 22.5% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 82.9% |
| Public insurance | 29.2% |
| Uninsured under 19 | 1.1% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 10,411 | 94.8% |
| Spanish | 97 | 2.5% |
| Other Indo-European | 89 | 2.5% |
| Asian & Pacific Islander | 8 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 10,798 | 96.5% |
| Born in same state | 10,767 | 95.8% |
| Born in different state | 7,801 | 78.7% |
| Foreign born | 31 | 0.7% |
| Naturalized citizen | 186 | 3.5% |
| Not a US citizen | 65 | 14.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Polish | 2,288 | 20.8% |
| Italian | 1,155 | 10.5% |
| French | 829 | 7.5% |
| Arab | 693 | 6.3% |
| Ancestry | Count | % |
|---|---|---|
| English | 406 | 3.7% |
| Dutch | 136 | 1.2% |
| German | 25 | 0.2% |
| Irish | 14 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.7% |
| Internet access | 95.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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