Comparison to Surrounding Areas
The median household income ($75,125) for 56731 is less than the median household income for 56728 ($79,444), 56755 ($91,250), and Kittson County ($76,100). But it's more than 56735 ($73,750) and Humboldt city ($-1).
| 56731 | $75,125 |
| Humboldt city | $-1 |
| Kittson County | $76,100 |
Get Median Household Income for all Zip Codes in Minnesota.
The average household income ($66,060) for 56731 is less than the average household income for 56728 ($97,433), 56735 ($83,458), 56755 ($103,839), and Kittson County ($93,998). But it's more than Humboldt city ($32,906).
| 56731 | $66,060 |
| Humboldt city | $32,906 |
| Kittson County | $93,998 |
Get Average Household Income for all Zip Codes in Minnesota.
The per-capita income for 56731 is $29,550. The per capita income ($29,550) for 56731 is less than the per capita income for 56728 ($41,753), 56735 ($35,929), 56755 ($47,657), and Kittson County ($40,409). But it's more than Humboldt city ($23,180).
| 56731 | $29,550 |
| Humboldt city | $23,180 |
| Kittson County | $40,409 |
Get Per-Capita Income for all Zip Codes in Minnesota.
0% of households make over $200,000 a year. The percent high income households (0.0%) for 56731 is less than 56728 (8.4%), 56735 (2.6%), 56755 (13.9%), and Kittson County (8.1%). And it's the same as Humboldt city (0.0%).
| 56731 | 0.0% |
| Humboldt city | 0.0% |
| Kittson County | 8.1% |
Get High Income Households for all Zip Codes in Minnesota.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 56731 | $-1 | $-1 | $-1 | $-1 |
| Humboldt city | $-1 | $-1 | $-1 | $-1 |
| Kittson County | $53,125 | $99,000 | $88,438 | $56,389 |
Get Median Household Income by Age of Householder for all Zip Codes in Minnesota.
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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 56731 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+ | |||||
| 56731 | +/-$53,332 | +/-$23,880 | +/-$8,335 | +/-29.2% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Humboldt city | +/-$-1 | +/-$14,916 | +/-$6,554 | +/-43.0% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Kittson County | +/-$9,695 | +/-$6,348 | +/-$2,816 | +/-2.1% | +/-$24,101 | +/-$13,296 | +/-$14,364 | +/-$5,142 |