Comparison to Surrounding Areas
The median household income ($74,693) for 50138 is less than the median household income for 50044 ($75,417), 50057 ($118,882), 50170 ($88,704), 50219 ($86,807), 50256 ($83,438), and Marion County ($78,680). But it's more than 50225 ($69,923), 50062 ($51,146), 50116 ($47,143), 50119 ($59,750), 50139 ($72,400), 50150 ($63,516), 50214 ($-1), and Knoxville city ($61,599).
| 50138 | $74,693 |
| Knoxville city | $61,599 |
| Marion County | $78,680 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($96,085) for 50138 is less than the average household income for 50219 ($113,122), 50256 ($152,863), and Marion County ($100,547). But it's more than 50225 ($79,312), 50044 ($79,873), 50057 ($89,739), 50062 ($70,834), 50116 ($71,856), 50119 ($78,513), 50139 ($86,283), 50150 ($79,387), 50170 ($93,907), 50214 ($89,195), and Knoxville city ($84,447).
| 50138 | $96,085 |
| Knoxville city | $84,447 |
| Marion County | $100,547 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 50138 is $41,015. The per capita income ($41,015) for 50138 is less than the per capita income for 50219 ($41,962) and 50256 ($68,484). But it's more than 50225 ($33,693), 50170 ($39,421), 50214 ($40,814), 50044 ($35,923), 50057 ($26,905), 50062 ($29,719), 50116 ($26,080), 50119 ($32,299), 50139 ($38,675), 50150 ($37,046), Marion County ($40,274), and Knoxville city ($36,768).
| 50138 | $41,015 |
| Knoxville city | $36,768 |
| Marion County | $40,274 |
Get Per-Capita Income for all Zip Codes in Iowa.
6.6% of households make over $200,000 a year. The percent high income households (6.6%) for 50138 is less than the percent high income households for 50116 (6.9%), 50139 (7.6%), 50219 (12.1%), 50256 (18.1%), and Marion County (8.4%). But it's more than 50225 (3.6%), 50044 (3.0%), 50057 (0.0%), 50062 (3.1%), 50119 (1.3%), 50150 (0.6%), 50170 (5.2%), 50214 (0.0%), and Knoxville city (5.1%).
| 50138 | 6.6% |
| Knoxville city | 5.1% |
| Marion County | 8.4% |
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 | |
|---|---|---|---|---|
| 50138 | $66,364 | $100,825 | $87,063 | $61,050 |
| Knoxville city | $67,536 | $82,940 | $66,944 | $49,705 |
| Marion County | $59,332 | $96,908 | $96,366 | $56,557 |
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 50138 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+ | |||||
| 50138 | +/-$10,789 | +/-$9,234 | +/-$3,649 | +/-2.8% | +/-$14,768 | +/-$22,647 | +/-$15,935 | +/-$6,200 |
| Knoxville city | +/-$6,493 | +/-$9,128 | +/-$3,953 | +/-3.1% | +/-$19,520 | +/-$25,866 | +/-$35,530 | +/-$15,783 |
| Marion County | +/-$3,041 | +/-$5,955 | +/-$2,163 | +/-1.7% | +/-$10,569 | +/-$5,692 | +/-$10,655 | +/-$7,504 |