Comparison to Surrounding Areas
The median household income ($107,563) for 50240 is less than the median household income for 50229 ($123,164). But it's more than 50273 ($82,633), 50210 ($87,813), 50222 ($100,568), 50241 ($77,500), 50257 ($94,375), 50033 ($56,250), 50125 ($84,848), 50160 ($57,500), Warren County ($94,588), Madison County ($90,855), Martensdale city ($57,500), and St. Charles city ($82,841).
| 50240 | $107,563 |
| Martensdale city | $57,500 |
| St. Charles city | $82,841 |
| Madison County | $90,855 |
| Warren County | $94,588 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($121,223) for 50240 is less than the average household income for 50210 ($124,489) and 50229 ($124,518). But it's more than 50273 ($94,979), 50160 ($69,582), 50222 ($118,891), 50241 ($94,134), 50257 ($93,358), 50033 ($50,617), 50125 ($99,925), Warren County ($111,331), Madison County ($106,293), Martensdale city ($69,582), and St. Charles city ($95,111).
| 50240 | $121,223 |
| Martensdale city | $69,582 |
| St. Charles city | $95,111 |
| Madison County | $106,293 |
| Warren County | $111,331 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 50240 is $45,732. The per capita income ($45,732) for 50240 is less than the per capita income for 50210 ($49,716) and 50222 ($62,258). But it's more than 50273 ($39,613), 50160 ($29,418), 50229 ($45,023), 50241 ($45,261), 50257 ($35,235), 50033 ($28,433), 50125 ($39,465), Warren County ($43,596), Madison County ($43,167), Martensdale city ($29,418), and St. Charles city ($38,263).
| 50240 | $45,732 |
| Martensdale city | $29,418 |
| St. Charles city | $38,263 |
| Madison County | $43,167 |
| Warren County | $43,596 |
Get Per-Capita Income for all Zip Codes in Iowa.
17.4% of households make over $200,000 a year. The percent high income households (17.4%) for 50240 is more than 50273 (7.8%), 50210 (11.8%), 50229 (12.7%), 50241 (0.0%), 50257 (3.6%), 50033 (0.0%), 50125 (8.5%), 50160 (0.8%), Warren County (10.9%), Madison County (10.2%), Martensdale city (0.8%), and St. Charles city (8.9%). And it's the same as 50222 (17.4%).
| 50240 | 17.4% |
| Martensdale city | 0.8% |
| St. Charles city | 8.9% |
| Madison County | 10.2% |
| Warren County | 10.9% |
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 | |
|---|---|---|---|---|
| 50240 | $56,705 | $112,578 | $139,821 | $90,568 |
| Martensdale city | $60,750 | $89,583 | $106,250 | $22,778 |
| St. Charles city | $56,705 | $98,214 | $84,408 | $52,500 |
| Madison County | $83,750 | $97,500 | $112,188 | $59,507 |
| Warren County | $57,589 | $107,416 | $117,184 | $58,661 |
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 50240 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+ | |||||
| 50240 | +/-$11,853 | +/-$10,604 | +/-$3,975 | +/-5.4% | +/-$28,247 | +/-$21,012 | +/-$12,592 | +/-$24,541 |
| Martensdale city | +/-$13,624 | +/-$13,225 | +/-$4,899 | +/-2.2% | +/-$8,444 | +/-$31,727 | +/-$47,435 | +/-$9,322 |
| St. Charles city | +/-$16,900 | +/-$12,925 | +/-$5,728 | +/-7.8% | +/-$28,247 | +/-$43,081 | +/-$48,531 | +/-$19,036 |
| Madison County | +/-$10,483 | +/-$4,977 | +/-$1,897 | +/-1.9% | +/-$55,816 | +/-$8,915 | +/-$7,783 | +/-$7,432 |
| Warren County | +/-$3,834 | +/-$3,966 | +/-$1,561 | +/-1.4% | +/-$26,858 | +/-$7,343 | +/-$7,781 | +/-$2,919 |