Comparison to Surrounding Areas
The median household income ($51,786) for 51105 is less than the median household income for 51103 ($58,197), 51104 ($75,362), 51106 ($78,434), 51108 ($81,205), Woodbury County ($73,658), and Sioux City city ($68,906). But it's more than 51101 ($15,300).
| 51105 | $51,786 |
| Sioux City city | $68,906 |
| Woodbury County | $73,658 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($66,882) for 51105 is less than the average household income for 51103 ($72,702), 51104 ($93,231), 51106 ($97,990), 51108 ($104,784), Woodbury County ($90,682), and Sioux City city ($86,214). But it's more than 51101 ($30,200).
| 51105 | $66,882 |
| Sioux City city | $86,214 |
| Woodbury County | $90,682 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 51105 is $24,008. The per capita income ($24,008) for 51105 is less than the per capita income for 51103 ($27,717), 51104 ($36,752), 51106 ($39,145), 51108 ($38,642), Woodbury County ($35,564), and Sioux City city ($33,795). But it's more than 51101 ($21,580).
| 51105 | $24,008 |
| Sioux City city | $33,795 |
| Woodbury County | $35,564 |
Get Per-Capita Income for all Zip Codes in Iowa.
3.4% of households make over $200,000 a year. The percent high income households (3.4%) for 51105 is less than the percent high income households for 51104 (5.2%), 51106 (11.0%), 51108 (10.3%), Woodbury County (7.0%), and Sioux City city (6.1%). But it's more than 51101 (0.0%) and 51103 (2.3%).
| 51105 | 3.4% |
| 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 | |
|---|---|---|---|---|
| 51105 | $-1 | $66,607 | $45,873 | $44,453 |
| 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 51105 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+ | |||||
| 51105 | +/-$7,804 | +/-$6,297 | +/-$2,415 | +/-2.4% | +/-$-1 | +/-$16,289 | +/-$10,323 | +/-$12,496 |
| 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 |