Comparison to Surrounding Areas
The median household income ($71,868) for 57042 is less than the median household income for 57076 ($118,281), 57050 ($116,563), 57054 ($86,875), 57075 ($106,763), 57016 ($95,815), 57018 ($97,500), 57048 ($84,081), McCook County ($83,852), Lake County ($76,808), and Lake Madison CDP ($129,191). But it's more than 57057 ($71,500), Madison city ($65,593), and Rustic Acres Colony CDP ($-1).
| 57042 | $71,868 |
| Lake Madison CDP | $129,191 |
| Madison city | $65,593 |
| Rustic Acres Colony CDP | $-1 |
| Lake County | $76,808 |
| McCook County | $83,852 |
Get Median Household Income for all Zip Codes in South Dakota.
The average household income ($88,317) for 57042 is less than the average household income for 57076 ($137,202), 57050 ($139,883), 57054 ($113,548), 57075 ($188,936), 57016 ($101,164), 57018 ($145,515), 57048 ($105,707), McCook County ($101,460), Lake County ($104,754), and Lake Madison CDP ($236,969). But it's more than 57057 ($81,984), Madison city ($80,632), and Rustic Acres Colony CDP ($-1).
| 57042 | $88,317 |
| Lake Madison CDP | $236,969 |
| Madison city | $80,632 |
| Rustic Acres Colony CDP | $-1 |
| Lake County | $104,754 |
| McCook County | $101,460 |
Get Average Household Income for all Zip Codes in South Dakota.
The per-capita income for 57042 is $39,812. The per capita income ($39,812) for 57042 is less than the per capita income for 57018 ($55,070), 57075 ($87,738), 57076 ($51,469), 57016 ($43,684), 57050 ($63,303), Lake County ($45,963), and Lake Madison CDP ($120,127). But it's more than 57048 ($39,473), 57054 ($39,061), 57057 ($25,821), McCook County ($38,288), Madison city ($36,282), and Rustic Acres Colony CDP ($-1).
| 57042 | $39,812 |
| Lake Madison CDP | $120,127 |
| Madison city | $36,282 |
| Rustic Acres Colony CDP | $-1 |
| Lake County | $45,963 |
| McCook County | $38,288 |
Get Per-Capita Income for all Zip Codes in South Dakota.
5.5% of households make over $200,000 a year. The percent high income households (5.5%) for 57042 is less than the percent high income households for 57076 (9.6%), 57050 (25.3%), 57054 (21.2%), 57075 (24.2%), 57016 (6.4%), 57018 (14.8%), 57048 (15.0%), McCook County (9.7%), Lake County (9.2%), and Lake Madison CDP (34.8%). But it's more than 57057 (3.1%), Madison city (4.4%), and Rustic Acres Colony CDP (-1.0%).
| 57042 | 5.5% |
| Lake Madison CDP | 34.8% |
| Madison city | 4.4% |
| Rustic Acres Colony CDP | -1.0% |
| Lake County | 9.2% |
| McCook County | 9.7% |
Get High Income Households for all Zip Codes in South Dakota.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 57042 | $41,250 | $71,419 | $97,366 | $59,250 |
| Lake Madison CDP | $-1 | $203,520 | $183,125 | $107,083 |
| Madison city | $31,346 | $71,229 | $93,289 | $50,938 |
| Rustic Acres Colony CDP | $-1 | $-1 | $-1 | $-1 |
| Lake County | $41,602 | $76,415 | $100,054 | $61,289 |
| McCook County | $45,865 | $95,625 | $91,406 | $63,802 |
Get Median Household Income by Age of Householder for all Zip Codes in South Dakota.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 57042 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 57042 | +/-$8,353 | +/-$7,462 | +/-$4,223 | +/-2.3% | +/-$20,217 | +/-$6,489 | +/-$24,949 | +/-$26,619 |
| Lake Madison CDP | +/-$49,280 | +/-$87,859 | +/-$48,025 | +/-12.2% | +/-$-1 | +/-$27,516 | +/-$101,122 | +/-$14,472 |
| Madison city | +/-$9,132 | +/-$9,241 | +/-$5,105 | +/-2.8% | +/-$21,805 | +/-$10,126 | +/-$32,510 | +/-$11,089 |
| Rustic Acres Colony CDP | +/-$-1 | +/-$-1 | +/-$-1 | +/--1.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Lake County | +/-$7,301 | +/-$11,358 | +/-$5,223 | +/-2.2% | +/-$19,864 | +/-$8,369 | +/-$13,414 | +/-$17,772 |
| McCook County | +/-$2,719 | +/-$5,852 | +/-$2,128 | +/-2.2% | +/-$24,861 | +/-$16,703 | +/-$12,102 | +/-$10,958 |