Comparison to Surrounding Areas
The median household income ($90,500) for 57620 is less than the median household income for 57640 ($250,001). But it's more than 57626 ($68,036), 57638 ($58,533), 57644 ($68,229), 57649 ($84,500), Perkins County ($66,908), and Bison town ($71,607).
| 57620 | $90,500 |
| Bison town | $71,607 |
| Perkins County | $66,908 |
Get Median Household Income for all Zip Codes in South Dakota.
The average household income ($103,186) for 57620 is less than the average household income for 57626 ($107,983), 57640 ($847,387), 57649 ($147,625), and Perkins County ($105,323). But it's more than 57638 ($70,891), 57644 ($69,484), and Bison town ($82,445).
| 57620 | $103,186 |
| Bison town | $82,445 |
| Perkins County | $105,323 |
Get Average Household Income for all Zip Codes in South Dakota.
The per-capita income for 57620 is $43,062. The per capita income ($43,062) for 57620 is less than the per capita income for 57626 ($46,393), 57640 ($622,346), 57649 ($52,166), and Perkins County ($46,783). But it's more than 57638 ($31,681), 57644 ($38,005), and Bison town ($36,473).
| 57620 | $43,062 |
| Bison town | $36,473 |
| Perkins County | $46,783 |
Get Per-Capita Income for all Zip Codes in South Dakota.
8.6% of households make over $200,000 a year. The percent high income households (8.6%) for 57620 is less than the percent high income households for 57626 (15.8%), 57640 (66.7%), and 57649 (32.0%). But it's more than 57638 (2.8%), 57644 (0.0%), Perkins County (8.4%), and Bison town (3.7%).
| 57620 | 8.6% |
| Bison town | 3.7% |
| Perkins County | 8.4% |
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 | |
|---|---|---|---|---|
| 57620 | $-1 | $118,750 | $91,833 | $55,625 |
| Bison town | $-1 | $96,250 | $-1 | $54,667 |
| Perkins County | $42,250 | $63,500 | $91,083 | $65,750 |
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 57620 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+ | |||||
| 57620 | +/-$34,766 | +/-$21,379 | +/-$9,764 | +/-5.5% | +/-$-1 | +/-$51,348 | +/-$41,690 | +/-$21,661 |
| Bison town | +/-$24,597 | +/-$14,213 | +/-$6,574 | +/-4.6% | +/-$-1 | +/-$26,530 | +/-$-1 | +/-$13,607 |
| Perkins County | +/-$9,644 | +/-$25,019 | +/-$11,017 | +/-3.5% | +/-$19,485 | +/-$12,840 | +/-$17,438 | +/-$15,285 |