Comparison to Surrounding Areas
The median household income ($-1) for 51111 is less than 51054 ($119,716), 51106 ($78,434), 68731 ($79,924), 68776 ($68,750), Woodbury County ($73,658), and Sioux City city ($68,906).
| 51111 | $-1 |
| Sioux City city | $68,906 |
| Woodbury County | $73,658 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($-1) for 51111 is less than 51054 ($134,282), 51106 ($97,990), 68731 ($95,785), 68776 ($89,732), Woodbury County ($90,682), and Sioux City city ($86,214).
| 51111 | $-1 |
| Sioux City city | $86,214 |
| Woodbury County | $90,682 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 51111 is $29,128. The per capita income ($29,128) for 51111 is less than 51054 ($47,922), 51106 ($39,145), 68731 ($31,348), 68776 ($31,725), Woodbury County ($35,564), and Sioux City city ($33,795).
| 51111 | $29,128 |
| Sioux City city | $33,795 |
| Woodbury County | $35,564 |
Get Per-Capita Income for all Zip Codes in Iowa.
0% of households make over $200,000 a year. The percent high income households (0.0%) for 51111 is less than 51054 (18.8%), 51106 (11.0%), 68731 (9.3%), 68776 (3.5%), Woodbury County (7.0%), and Sioux City city (6.1%).
| 51111 | 0.0% |
| Sioux City city | 6.1% |
| Woodbury County | 7.0% |
Get High Income Households for all Zip Codes in Iowa.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 51111 | $-1 | $-1 | $-1 | $-1 |
| Sioux City city | $55,069 | $77,969 | $86,547 | $46,909 |
| Woodbury County | $55,368 | $81,268 | $88,314 | $50,680 |
Get Median Household Income by Age of Householder for all Zip Codes in Iowa.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 51111 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 51111 | +/-$-1 | +/-$-1 | +/-$14,625 | +/-50.1% | +/-$-1 | +/-$-1 | +/-$-1 | +/-$-1 |
| Sioux City city | +/-$4,550 | +/-$3,658 | +/-$1,388 | +/-1.4% | +/-$15,963 | +/-$4,262 | +/-$6,439 | +/-$2,666 |
| Woodbury County | +/-$2,611 | +/-$2,937 | +/-$1,120 | +/-1.2% | +/-$13,152 | +/-$5,067 | +/-$6,529 | +/-$3,089 |