Comparison to Surrounding Areas
The median household income ($83,929) for 51240 is less than the median household income for 51241 ($87,446) and Sioux County ($86,098). But it's more than 51235 ($71,016), 57013 ($76,458), 57027 ($-1), 51230 ($75,625), 51247 ($78,358), Lyon County ($76,746), and Inwood city ($62,333).
| 51240 | $83,929 |
| Inwood city | $62,333 |
| Lyon County | $76,746 |
| Sioux County | $86,098 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($124,241) for 51240 is more than 57027 ($96,388), 51241 ($105,398), 51247 ($99,084), 57013 ($94,642), 51230 ($77,292), 51235 ($100,392), Sioux County ($104,988), Lyon County ($95,299), and Inwood city ($76,941).
| 51240 | $124,241 |
| Inwood city | $76,941 |
| Lyon County | $95,299 |
| Sioux County | $104,988 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 51240 is $41,804. The per capita income ($41,804) for 51240 is more than 57027 ($38,662), 51241 ($41,199), 51247 ($35,505), 57013 ($41,025), 51230 ($30,405), 51235 ($40,773), Sioux County ($37,166), Lyon County ($36,117), and Inwood city ($34,133).
| 51240 | $41,804 |
| Inwood city | $34,133 |
| Lyon County | $36,117 |
| Sioux County | $37,166 |
Get Per-Capita Income for all Zip Codes in Iowa.
14.1% of households make over $200,000 a year. The percent high income households (14.1%) for 51240 is more than 57027 (2.5%), 51241 (7.8%), 51247 (9.1%), 57013 (8.4%), 51230 (1.1%), 51235 (5.4%), Sioux County (10.0%), Lyon County (7.9%), and Inwood city (3.8%).
| 51240 | 14.1% |
| Inwood city | 3.8% |
| Lyon County | 7.9% |
| 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 | |
|---|---|---|---|---|
| 51240 | $97,500 | $105,592 | $92,533 | $37,500 |
| Inwood city | $97,500 | $74,375 | $76,250 | $27,500 |
| Lyon County | $64,583 | $87,162 | $99,028 | $44,301 |
| 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 51240 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+ | |||||
| 51240 | +/-$5,960 | +/-$32,312 | +/-$8,695 | +/-8.7% | +/-$44,688 | +/-$33,594 | +/-$17,444 | +/-$25,273 |
| Inwood city | +/-$19,276 | +/-$13,569 | +/-$4,842 | +/-2.7% | +/-$44,688 | +/-$10,167 | +/-$16,570 | +/-$6,148 |
| Lyon County | +/-$7,073 | +/-$5,555 | +/-$1,874 | +/-1.7% | +/-$8,861 | +/-$5,118 | +/-$11,976 | +/-$6,584 |
| Sioux County | +/-$7,089 | +/-$4,769 | +/-$1,361 | +/-1.5% | +/-$24,015 | +/-$6,602 | +/-$11,719 | +/-$4,877 |