Comparison to Surrounding Areas
The median household income ($75,625) for 50136 is less than the median household income for 52222 ($81,964). But it's more than 52591 ($62,404), 50104 ($55,625), 50255 ($39,722), 50268 ($59,118), 52355 ($63,750), Keokuk County ($62,329), Iowa County ($71,223), Keswick city ($63,750), and Thornburg city ($39,861).
| 50136 | $75,625 |
| Keswick city | $63,750 |
| Thornburg city | $39,861 |
| Iowa County | $71,223 |
| Keokuk County | $62,329 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($91,043) for 50136 is less than the average household income for 52222 ($103,931) and 52355 ($130,437). But it's more than 52591 ($89,380), 50104 ($65,142), 50255 ($60,365), 50268 ($63,239), Iowa County ($90,784), Keokuk County ($83,451), Keswick city ($77,840), and Thornburg city ($59,770).
| 50136 | $91,043 |
| Keswick city | $77,840 |
| Thornburg city | $59,770 |
| Iowa County | $90,784 |
| Keokuk County | $83,451 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 50136 is $38,342. The per capita income ($38,342) for 50136 is less than the per capita income for 52222 ($42,740), 52355 ($48,417), and Iowa County ($38,618). But it's more than 50104 ($36,683), 50255 ($28,943), 50268 ($27,945), 52591 ($37,751), Keokuk County ($35,153), Keswick city ($32,641), and Thornburg city ($28,180).
| 50136 | $38,342 |
| Keswick city | $32,641 |
| Thornburg city | $28,180 |
| Iowa County | $38,618 |
| Keokuk County | $35,153 |
Get Per-Capita Income for all Zip Codes in Iowa.
2.1% of households make over $200,000 a year. The percent high income households (2.1%) for 50136 is less than the percent high income households for 50104 (5.8%), 52355 (4.9%), 52591 (8.2%), Iowa County (5.5%), Keokuk County (4.9%), and Keswick city (3.2%). But it's more than 50255 (0.0%), 50268 (0.0%), 52222 (0.7%), and Thornburg city (0.0%).
| 50136 | 2.1% |
| Keswick city | 3.2% |
| Thornburg city | 0.0% |
| Iowa County | 5.5% |
| Keokuk County | 4.9% |
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 | |
|---|---|---|---|---|
| 50136 | $-1 | $87,500 | $107,083 | $62,500 |
| Keswick city | $-1 | $86,250 | $-1 | $58,125 |
| Thornburg city | $-1 | $-1 | $117,708 | $38,333 |
| Iowa County | $53,333 | $71,098 | $93,568 | $54,026 |
| Keokuk County | $40,313 | $76,250 | $72,244 | $45,817 |
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 50136 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+ | |||||
| 50136 | +/-$30,368 | +/-$15,309 | +/-$6,727 | +/-2.8% | +/-$-1 | +/-$39,573 | +/-$69,709 | +/-$29,842 |
| Keswick city | +/-$7,673 | +/-$13,575 | +/-$6,103 | +/-4.4% | +/-$-1 | +/-$43,437 | +/-$-1 | +/-$36,788 |
| Thornburg city | +/-$28,462 | +/-$23,672 | +/-$7,787 | +/-50.1% | +/-$-1 | +/-$-1 | +/-$83,586 | +/-$6,525 |
| Iowa County | +/-$4,147 | +/-$8,877 | +/-$3,233 | +/-1.7% | +/-$32,200 | +/-$9,751 | +/-$8,530 | +/-$5,323 |
| Keokuk County | +/-$4,405 | +/-$5,574 | +/-$2,126 | +/-1.4% | +/-$24,578 | +/-$8,447 | +/-$8,226 | +/-$7,722 |