Comparison to Surrounding Areas
The median household income ($54,625) for 57440 is less than the median household income for 57424 ($75,000), 57469 ($66,111), 57477 ($59,375), 57348 ($83,542), 57436 ($73,333), Spink County ($70,139), and Frankfort city ($68,750). But it's more than Camrose Colony CDP ($-1), Glendale Colony CDP ($-1), and Spink Colony CDP ($-1).
| 57440 | $54,625 |
| Camrose Colony CDP | $-1 |
| Frankfort city | $68,750 |
| Glendale Colony CDP | $-1 |
| Spink Colony CDP | $-1 |
| Spink County | $70,139 |
Get Median Household Income for all Zip Codes in South Dakota.
The average household income ($118,701) for 57440 is more than 57477 ($101,930), 57348 ($99,739), 57424 ($90,705), 57436 ($101,261), 57469 ($80,355), Spink County ($90,477), Camrose Colony CDP ($-1), Frankfort city ($75,049), Glendale Colony CDP ($-1), and Spink Colony CDP ($-1).
| 57440 | $118,701 |
| Camrose Colony CDP | $-1 |
| Frankfort city | $75,049 |
| Glendale Colony CDP | $-1 |
| Spink Colony CDP | $-1 |
| Spink County | $90,477 |
Get Average Household Income for all Zip Codes in South Dakota.
The per-capita income for 57440 is $36,929. The per capita income ($36,929) for 57440 is less than the per capita income for 57348 ($37,913), 57436 ($49,753), 57469 ($37,867), 57477 ($53,693), Spink County ($38,078), and Glendale Colony CDP ($54,120). But it's more than 57424 ($27,677), Camrose Colony CDP ($-1), Frankfort city ($36,644), and Spink Colony CDP ($6,536).
| 57440 | $36,929 |
| Camrose Colony CDP | $-1 |
| Frankfort city | $36,644 |
| Glendale Colony CDP | $54,120 |
| Spink Colony CDP | $6,536 |
| Spink County | $38,078 |
Get Per-Capita Income for all Zip Codes in South Dakota.
11.5% of households make over $200,000 a year. The percent high income households (11.5%) for 57440 is less than the percent high income households for 57436 (13.9%), 57477 (17.5%), and Glendale Colony CDP (100.0%). But it's more than 57348 (5.1%), 57424 (6.9%), 57469 (3.8%), Spink County (7.5%), Spink Colony CDP (-1.0%), Camrose Colony CDP (-1.0%), and Frankfort city (0.0%).
| 57440 | 11.5% |
| Camrose Colony CDP | -1.0% |
| Frankfort city | 0.0% |
| Glendale Colony CDP | 100.0% |
| Spink Colony CDP | -1.0% |
| Spink County | 7.5% |
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 | |
|---|---|---|---|---|
| 57440 | $-1 | $-1 | $106,250 | $38,750 |
| Camrose Colony CDP | $-1 | $-1 | $-1 | $-1 |
| Frankfort city | $-1 | $122,778 | $104,375 | $41,250 |
| Glendale Colony CDP | $-1 | $-1 | $-1 | $-1 |
| Spink Colony CDP | $-1 | $-1 | $-1 | $-1 |
| Spink County | $43,750 | $80,625 | $81,458 | $54,899 |
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 57440 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+ | |||||
| 57440 | +/-$16,208 | +/-$44,586 | +/-$7,413 | +/-7.4% | +/-$-1 | +/-$-1 | +/-$64,199 | +/-$13,396 |
| Camrose Colony CDP | +/-$-1 | +/-$-1 | +/-$-1 | +/--1.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Frankfort city | +/-$39,763 | +/-$13,838 | +/-$10,589 | +/-32.3% | +/-$-1 | +/-$30,105 | +/-$20,892 | +/-$21,912 |
| Glendale Colony CDP | +/-$-1 | +/-$-1 | +/-$7,375 | +/-100.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Spink Colony CDP | +/-$-1 | +/-$-1 | +/-$4,570 | +/--1.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Spink County | +/-$9,006 | +/-$6,070 | +/-$2,556 | +/-2.0% | +/-$24,266 | +/-$14,298 | +/-$17,201 | +/-$7,413 |