Comparison to Surrounding Areas
The median household income ($78,155) for 57366 is less than the median household income for 57052 ($118,750), 57311 ($103,839), 57313 ($89,107), 57328 ($86,985), 57331 ($101,406), and Douglas County ($86,442). But it's more than 57376 ($61,538), 57029 ($73,750), 57330 ($71,563), 57332 ($69,583), 57334 ($62,167), Hutchinson County ($73,977), Milltown CDP ($-1), Old Elm Spring Colony CDP ($-1), and Parkston city ($70,139).
| 57366 | $78,155 |
| Milltown CDP | $-1 |
| Old Elm Spring Colony CDP | $-1 |
| Parkston city | $70,139 |
| Douglas County | $86,442 |
| Hutchinson County | $73,977 |
Get Median Household Income for all Zip Codes in South Dakota.
The average household income ($101,862) for 57366 is less than the average household income for 57052 ($117,988), 57311 ($127,654), 57313 ($134,493), and Douglas County ($107,200). But it's more than 57376 ($83,892), 57330 ($89,283), 57331 ($96,862), 57332 ($92,151), 57334 ($89,631), 57029 ($89,798), 57328 ($92,403), Hutchinson County ($97,565), Milltown CDP ($-1), Old Elm Spring Colony CDP ($-1), and Parkston city ($79,090).
| 57366 | $101,862 |
| Milltown CDP | $-1 |
| Old Elm Spring Colony CDP | $-1 |
| Parkston city | $79,090 |
| Douglas County | $107,200 |
| Hutchinson County | $97,565 |
Get Average Household Income for all Zip Codes in South Dakota.
The per-capita income for 57366 is $40,340. The per capita income ($40,340) for 57366 is less than the per capita income for 57311 ($45,968), 57313 ($50,844), 57331 ($45,012), and Douglas County ($43,158). But it's more than 57376 ($38,941), 57328 ($37,453), 57330 ($29,329), 57332 ($34,457), 57334 ($33,721), 57029 ($34,361), 57052 ($34,189), Hutchinson County ($39,153), Milltown CDP ($-1), Old Elm Spring Colony CDP ($-1), and Parkston city ($31,740).
| 57366 | $40,340 |
| Milltown CDP | $-1 |
| Old Elm Spring Colony CDP | $-1 |
| Parkston city | $31,740 |
| Douglas County | $43,158 |
| Hutchinson County | $39,153 |
Get Per-Capita Income for all Zip Codes in South Dakota.
9.7% of households make over $200,000 a year. The percent high income households (9.7%) for 57366 is less than the percent high income households for 57052 (13.1%), 57311 (10.5%), 57313 (15.3%), 57330 (12.3%), Douglas County (9.9%), and Milltown CDP (100.0%). But it's more than 57376 (9.0%), 57331 (7.2%), 57332 (8.6%), 57334 (6.6%), 57029 (6.9%), 57328 (8.5%), Hutchinson County (9.1%), Old Elm Spring Colony CDP (-1.0%), and Parkston city (2.2%).
| 57366 | 9.7% |
| Milltown CDP | 100.0% |
| Old Elm Spring Colony CDP | -1.0% |
| Parkston city | 2.2% |
| Douglas County | 9.9% |
| Hutchinson County | 9.1% |
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 | |
|---|---|---|---|---|
| 57366 | $66,094 | $80,500 | $110,455 | $54,643 |
| Milltown CDP | $-1 | $-1 | $-1 | $-1 |
| Old Elm Spring Colony CDP | $-1 | $-1 | $-1 | $-1 |
| Parkston city | $78,500 | $78,229 | $90,083 | $51,500 |
| Douglas County | $-1 | $98,606 | $101,339 | $53,750 |
| Hutchinson County | $66,875 | $80,250 | $99,250 | $49,756 |
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 57366 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+ | |||||
| 57366 | +/-$16,574 | +/-$13,507 | +/-$5,716 | +/-4.6% | +/-$6,453 | +/-$26,055 | +/-$31,500 | +/-$13,894 |
| Milltown CDP | +/-$-1 | +/-$-1 | +/-$-1 | +/-100.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Old Elm Spring Colony CDP | +/-$-1 | +/-$-1 | +/-$-1 | +/--1.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Parkston city | +/-$9,376 | +/-$6,162 | +/-$3,157 | +/-1.5% | +/-$43,896 | +/-$25,091 | +/-$34,356 | +/-$12,870 |
| Douglas County | +/-$7,842 | +/-$11,353 | +/-$4,202 | +/-3.2% | +/-$-1 | +/-$14,584 | +/-$16,671 | +/-$22,983 |
| Hutchinson County | +/-$8,995 | +/-$6,501 | +/-$2,250 | +/-2.1% | +/-$10,606 | +/-$15,145 | +/-$19,451 | +/-$7,206 |