Lake Madison, SD ZIP Codes
2 ZIP codes serve Lake Madison, South Dakota: 57042 and 57075. Together they are home to 9,052 residents in 3,954 households. That is more than the 936 people counted inside Lake Madison Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $71,868 in 57042 to $106,763 in 57075.
Lake Madison Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 936 |
| Households | 485 |
| Median household income | $129,191 |
| Median home value | $477,800 |
| Median age | 63.2 |
| Median rent | $867 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 9,052 |
| Households (sum of ZIP codes) | 3,954 |
| Median household income, range across ZIP codes | $71,868 (57042) to $106,763 (57075) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $77,366 |
| Homeowners | 71.0% |
| Households with kids under 18 | 22.0% |
| Moved in the past year | 16.9% |
| Carrier routes in EDDM2GO's route library | 10 routes, 3,804 homes (1 of 2 ZIP codes) |
Top facts
- Highest median household income in Lake Madison: 57075 ($106,763)
- Most residents: 57042 (7,756 people)
- Highest homeownership: 57075 (90.5% own their home)
- Most households with kids: 57042 (22.9% of households)
- Most new movers: 57042 (19.4% moved in last year)
- Youngest median age: 57042 (43.1 years)
- Highest median home value: 57075 ($426,800)
Every ZIP code in Lake Madison
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 57042 | Madison | 7,756 | 3,331 | $71,868 | $228,200 | 67.4% | 22.9% | 19.4% | 10 | 4,032 | 0% of its land |
| 57075 | Wentworth | 1,296 | 623 | $106,763 | $426,800 | 90.5% | 16.9% | 1.6% | — | — | 5% of its land |
A ZIP code is listed for Lake Madison when at least 10% of its land lies inside the Lake Madison Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Lake Madison. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Lake Madison.
Counties
- Lake County — 7 ZIP codes
Nearby cities sharing these ZIP codes
- Madison — 1 ZIP code
Price a mailing to Lake Madison ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Lake Madison, SD?
- 57042 and 57075. A ZIP code is listed for Lake Madison when at least 10% of its land lies inside the Lake Madison Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is Lake Madison.
- What is the population of Lake Madison, SD?
- The Census Bureau counts 936 residents inside Lake Madison Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve Lake Madison hold 9,052 residents in all.
- What is the median household income in Lake Madison, SD?
- $129,191 inside Lake Madison Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $71,868 to $106,763.
- Which Lake Madison ZIP code has the highest median household income?
- 57075, at $106,763, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Lake Madison, SD?
- For the 1 of 2 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 3,804 residential and 231 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.