Comparison to Surrounding Areas
The median household income ($101,250) for 51003 is more than 51238 ($74,000), 51031 ($76,525), 51041 ($83,643), 51050 ($92,500), 51022 ($96,505), Sioux County ($86,098), Alton city ($98,036), and Orange City city ($82,122).
| 51003 | $101,250 |
| Alton city | $98,036 |
| Orange City city | $82,122 |
| Sioux County | $86,098 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($114,618) for 51003 is less than the average household income for 51050 ($116,488). But it's more than 51022 ($97,016), 51031 ($92,229), 51041 ($100,229), 51238 ($90,449), Sioux County ($104,988), Alton city ($108,810), and Orange City city ($94,372).
| 51003 | $114,618 |
| Alton city | $108,810 |
| Orange City city | $94,372 |
| Sioux County | $104,988 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 51003 is $44,417. The per capita income ($44,417) for 51003 is less than the per capita income for Alton city ($46,530). But it's more than 51031 ($38,599), 51050 ($42,233), 51238 ($33,317), 51022 ($40,177), 51041 ($35,441), Sioux County ($37,166), and Orange City city ($33,634).
| 51003 | $44,417 |
| Alton city | $46,530 |
| Orange City city | $33,634 |
| Sioux County | $37,166 |
Get Per-Capita Income for all Zip Codes in Iowa.
12.1% of households make over $200,000 a year. The percent high income households (12.1%) for 51003 is more than 51238 (4.9%), 51031 (6.3%), 51041 (10.4%), 51050 (9.3%), 51022 (2.3%), Sioux County (10.0%), Alton city (8.3%), and Orange City city (9.2%).
| 51003 | 12.1% |
| Alton city | 8.3% |
| Orange City city | 9.2% |
| Sioux County | 10.0% |
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 | |
|---|---|---|---|---|
| 51003 | $158,125 | $100,547 | $115,000 | $44,500 |
| Alton city | $158,125 | $100,417 | $107,188 | $43,750 |
| Orange City city | $17,997 | $84,861 | $110,625 | $75,288 |
| Sioux County | $43,750 | $100,981 | $104,955 | $60,475 |
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 51003 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+ | |||||
| 51003 | +/-$13,167 | +/-$12,104 | +/-$6,181 | +/-5.5% | +/-$106,492 | +/-$8,097 | +/-$15,689 | +/-$37,862 |
| Alton city | +/-$14,555 | +/-$12,441 | +/-$6,545 | +/-3.8% | +/-$106,492 | +/-$12,938 | +/-$12,714 | +/-$33,635 |
| Orange City city | +/-$2,640 | +/-$8,446 | +/-$3,032 | +/-3.5% | +/-$15,083 | +/-$23,019 | +/-$31,969 | +/-$21,648 |
| Sioux County | +/-$7,089 | +/-$4,769 | +/-$1,361 | +/-1.5% | +/-$24,015 | +/-$6,602 | +/-$11,719 | +/-$4,877 |