ZIP codes
7
Lake County, SD Demographics & ZIP Codes
Lake County, South Dakota demographics and median household income by ZIP code — 7 ZIP codes — population 11,279 — avg. income $97,543 — avg. home value $262,629. Compare income, housing, and ZIP-level data on US5.
Population
11,279
Median household income (avg.)
$97,543
130% of U.S. median
Average home value
$262,629
75% of U.S. median
Average rent
$544
47% of U.S. median
Lake County demographics
Lake County, South Dakota covers 7 ZIP codes, with a combined ZIP-area population of about 11,279.
Median household income in Lake County
The average median household income across ZIP codes in Lake County, South Dakota is about $97,543 — about 35% above the SD ZIP average ($72,498), and about 30% above the U.S. median ($75,149).
Among ZIPs with income data, 57076 (Winfred) is near the top at about $125,250, while 57042 (Madison) is near the bottom at about $68,672.
Housing in Lake County
For housing in Lake County, South Dakota, the average median home value is about $262,629 and the average median rent is about $544.
The most populous ZIP is 57042 (Madison) with about 7,900 residents. Use the table below to compare ZIP codes across the county.
ZIP codes in Lake County
Sort by population, income, or home value. Click a column header to toggle ascending / descending.
| ZIP | City | County | State | Population ↓ | Income | Home value |
|---|---|---|---|---|---|---|
| 57042 | Madison | Lake County | SD | 7,900 | $68,672 | $218,200 |
| 57075 | Lake Madison | Lake County | SD | 1,237 | $103,750 | $430,300 |
| 57054 | Ramona | Lake County | SD | 698 | $88,839 | $108,700 |
| 57016 | Chester | Lake County | SD | 680 | $92,125 | $225,600 |
| 57076 | Winfred | Lake County | SD | 373 | $125,250 | $263,900 |
| 57057 | — | Lake County | SD | 205 | $87,917 | $366,700 |
| 57050 | Nunda | Lake County | SD | 186 | $116,250 | $225,000 |
Frequently asked questions
What are the demographics of Lake County?
Lake County, South Dakota has a combined ZIP-area population of about 11,279 across 7 ZIP codes. Browse the ZIP table for population, income, and housing by code.
What is the median household income in Lake County?
The average median household income across ZIP codes in Lake County, South Dakota is about $97,543, about 35% above the state ZIP average ($72,498), and about 30% above the U.S. median ($75,149). Average median home value is about $262,629. Among ZIPs with data, 57076 (Winfred) is near the top ($125,250) and 57042 (Madison) is near the bottom ($68,672).
How many ZIP codes are in Lake County?
Lake County, South Dakota includes 7 ZIP codes on US5. Each row links to demographics, median income, and housing for that code.
Where can I find ZIP code demographics for Lake County?
This page lists ZIP codes in Lake County, South Dakota with population, median household income, and home value. Select a ZIP for a full demographics profile.