US ZIP Code
57042

Madison, SD

Lake County  ·  South Dakota

● Active
👥 7,900 Population ↓ 16% since 2019
💰 $68,672 Median HH Income
▼ 10% below avg ↑ 15% since 2019
🎂 41.4 Median Age ↑ 8% since 2019
🏠 $218,200 Median Home Value
▼ 22% below avg ↑ 34% since 2019
🎓 50.9% College Grads
▲ 31% above avg
📊 3.1% Unemployment
▼ 38% below avg ↓ 23% since 2019
ZIP Code Details
ZIP Code57042
CityMadison
StateSouth Dakota (SD)
CountyLake County
Area Code605
Elevation1,698 ft
Latitude43.971319
Longitude-97.144098
TimezoneChicago (DST)
FIPS46079
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 51.1% (4,034) Female 48.9% (3,866) ♀

Race & Ethnicity

White: 92.5%Hispanic: 4.2%Black: 0.7%Asian: 0.8%Other: 1.5%Race
White92.5%
Hispanic4.2%
Black0.7%
Asian0.8%
Other1.5%

Age Breakdown

Under 5
5%
5–17
15%
18–24
13%
25–44
22%
45–64
23%
65+
13%

Key Indicators

Median Age41.4 yrs ↑ 8% since 2019
Avg Household Size2.26
Below Poverty9.9% ≈ Avg
College Grads50.9% ▲ 31% above avg
Unemployment3.1% ▼ 38% below avg
No HS Diploma7 (0.1%)
HS Graduate1,081 (21.4%)
Some College602 (11.9%)
Associates790 (15.6%)
Bachelors667 (13.2%)
Graduate Degree1,903 (37.7%)

Education

No HS: 0.1%HS Grad: 21.4%Some College: 11.9%Associates: 15.6%Bachelors: 13.2%Graduate: 37.7%Edu
No HS0.1%
HS Grad21.4%
Some College11.9%
Associates15.6%
Bachelors13.2%
Graduate37.7%
Housing & Income

Housing Tenure

Owner: 64.2%Renter: 35.8%Tenure
Owner64.2%
Renter35.8%

Home Value Distribution

Under $50k
7%
$50k–100k
11%
$100k–150k
13%
$150k–200k
14%
$200k–300k
30%
$300k–500k
17%
Over $500k
7%

Financials

Median HH Income$68,672 ▼ 10% below avg ↑ 15% since 2019
Median Home Value$218,200 ▼ 22% below avg ↑ 34% since 2019
Home/Income Ratio3.2x (nat avg ~3.5x)
Median Rent$877/mo ↑ 54% since 2019
Total Units3,768
Vacant Units519
Avg HH Size2.26

Income Distribution

Under $25k
21%
$25k–50k
9%
$50k–75k
24%
$75k–100k
10%
$100k–150k
25%
$150k–200k
5%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
84%
Public Transit
2%
Walked
6%
Work From Home
9%

Commute Time

Under 15 min
75%
15–30 min
12%
30–45 min
6%
Over 45 min
8%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
10%
1960s–1970s
11%
1980s–1990s
18%
2000+
61%

Summary

Total Units3,768
Vacant519
Owner Occupied64.2%
Renter Occupied35.8%
Avg HH Size2.26
Frequently Asked Questions
ZIP code 57042 is in Madison, SD, in Lake County.
ZIP code 57042 is located in South Dakota (SD).
ZIP code 57042 is in Lake County, SD.
ZIP 57042 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57042 is 7,900 people (ACS 2023).
The median household income in ZIP code 57042 is $68,672 (ACS 2023).
The median home value in ZIP 57042 is $218,200 (ACS 2023).
About ZIP Code 57042

ZIP code 57042 is located in Madison, South Dakota, within Lake County. With a population of 7,900, this is a lightly populated ZIP code with a middle-aged community — the median age is 41.4 years. Economically, 57042 is a solidly middle-class ZIP code: the median household income of $68,672 is near the national average.

Real estate in ZIP code 57042 represents an affordable housing market. The median home value of $218,200 is below the national average. Renters can expect to pay around $877 per month in median rent. Homeownership is strong here — 64.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 34% since 2019.

The population of 57042 is primarily White (92.48%). Residents are well-educated — 50.9% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 9.9%. Household income has grown by 15% since 2019.

The unemployment rate in 57042 stands at 3.1%, which is below the national average. As in most parts of the country, driving alone is the dominant commute mode at 79%.

Overall, ZIP code 57042 in Madison, SD is characterized as solidly middle-class, well-educated, a middle-aged community, and predominantly owner-occupied. With 7,900 residents, a median household income of $68,672, and a median home value of $218,200, it offers a clear picture of life in this part of South Dakota.