County

Lake County, SD

7 ZIP codes  ·  7 cities  ·  South Dakota

👥11,279Population
💰$78,187Median HH Income≈ Avg
🎂43.7Median Age
🏠$239,454Median Home Value▼ 14% below avg
🎓48.0%College Grads▲ 24% above avg
📊2.4%Unemployment▼ 52% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 52.3% Female 47.7% ♀

Race & Ethnicity

White: 90.1%Hispanic: 5.4%Black: 0.7%Asian: 0.7%Other: 1.7%Race
White90.1%
Hispanic5.4%
Black0.7%
Asian0.7%
Other1.7%

Age Breakdown

Under 5
4%
5–17
16%
18–24
11%
25–44
21%
45–64
25%
65+
13%

Key Indicators

Median Age43.7 yrs
Avg HH Size2.28
Below Poverty8.6% ▼ 14% below avg
College Grads48.0% ▲ 24% above avg
Unemployment2.4% ▼ 52% below avg
No HS Diploma48 (0.6%)
HS Graduate1,756 (23.5%)
Some College983 (13.2%)
Associates1,099 (14.7%)
Bachelors933 (12.5%)
Graduate Degree2,639 (35.4%)

Education

No HS: 0.6%HS Grad: 23.5%Some College: 13.2%Associates: 14.7%Bachelors: 12.5%Graduate: 35.4%Edu
No HS0.6%
HS Grad23.5%
Some College13.2%
Associates14.7%
Bachelors12.5%
Graduate35.4%
Housing & Income

Housing Tenure

Owner: 71.3%Renter: 28.7%Tenure
Owner71.3%
Renter28.7%

Home Value Distribution

Under $50k
7%
$50k–$100k
10%
$100k–$150k
12%
$150k–$200k
12%
$200k–$300k
25%
$300k–$500k
21%
Over $500k
12%

Financials

Median HH Income$78,187 ≈ Avg
Median Home Value$239,453 ▼ 14% below avg
Home/Income Ratio3.1x (nat avg ~3.5x)
Median Rent$867/mo
Total Housing Units5,813
Vacant Units1,110

Income Distribution

Under $25k
18%
$25k–$50k
10%
$50k–$75k
21%
$75k–$100k
11%
$100k–$150k
25%
$150k–$200k
8%
Over $200k
8%
Employment & Commute

How People Get to Work

Drove Alone
83%
Public Transit
1%
Walked
5%
Work From Home
10%

Commute Time

Under 15 min
64%
15–30 min
18%
30–45 min
8%
Over 45 min
9%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
8%
1960s–1970s
10%
1980s–1990s
16%
2000+
64%
About Lake County, SD

Lake County is located in South Dakota and encompasses 7 ZIP codes spanning 7 cities and communities. The county has an estimated population of 11,279 residents. With a median age of 43.68, it is a middle-aged county.

Lake County has a middle-income economic profile. The median household income of $78,186 is near the national average. Unemployment stands at 2.4%, well below the national average. The poverty rate of 8.6% is near the national average.

Housing in Lake County is an affordable housing market, with a median home value of $239,453 — near the national average. Monthly median rent is approximately $866. Homeownership rates are high at 71.3%, reflecting a largely residential, stable population.

The residents of Lake County are primarily White (90.06%). Educational attainment is well-educated — 48.0% of adults hold a bachelor's degree or higher, above the national average.

Lake County, SD is a middle-income area in South Dakota. The 7 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.

ZIP Codes in Lake County
ZIPCityPopulationMedian IncomeMedian HomeMedian RentUnemp.College
57016 Chester 680 $92,125 $225,600 $1,107 1.7% 39.9%
57042 Madison 7,900 $68,672 $218,200 $877 3.1% 50.9%
57050 Nunda 186 $116,250 $225,000 0.0% 54.6%
57054 Ramona 698 $88,839 $108,700 0.8% 33.6%
57057 Rutland 205 $87,917 $366,700 0.0% 44.0%
57075 Wentworth 1,237 $103,750 $430,300 $705 0.6% 48.1%
57076 Winfred 373 $125,250 $263,900 $742 0.0% 27.8%