Comparison to Surrounding Areas
The median household income ($103,313) for 51056 is more than 51051 ($51,563), 51026 ($80,500), 51034 ($66,375), 51044 ($90,417), 51010 ($89,063), Woodbury County ($73,658), Monona County ($68,377), and Smithland city ($98,750).
| 51056 | $103,313 |
| Smithland city | $98,750 |
| Monona County | $68,377 |
| Woodbury County | $73,658 |
Get Median Household Income for all Zip Codes in Iowa.
The average household income ($96,576) for 51056 is less than the average household income for 51044 ($102,031). But it's more than 51010 ($90,711), 51026 ($83,300), 51034 ($87,365), 51051 ($61,129), Woodbury County ($90,682), Monona County ($81,023), and Smithland city ($90,265).
| 51056 | $96,576 |
| Smithland city | $90,265 |
| Monona County | $81,023 |
| Woodbury County | $90,682 |
Get Average Household Income for all Zip Codes in Iowa.
The per-capita income for 51056 is $49,630. The per capita income ($49,630) for 51056 is more than 51051 ($30,026), 51026 ($32,180), 51034 ($38,724), 51044 ($46,394), 51010 ($40,064), Woodbury County ($35,564), Monona County ($35,795), and Smithland city ($47,166).
| 51056 | $49,630 |
| Smithland city | $47,166 |
| Monona County | $35,795 |
| Woodbury County | $35,564 |
Get Per-Capita Income for all Zip Codes in Iowa.
6.4% of households make over $200,000 a year. The percent high income households (6.4%) for 51056 is less than the percent high income households for 51034 (7.8%) and Woodbury County (7.0%). But it's more than 51010 (2.4%), 51026 (2.3%), 51044 (1.3%), 51051 (4.8%), Monona County (5.2%), and Smithland city (0.0%).
| 51056 | 6.4% |
| Smithland city | 0.0% |
| Monona County | 5.2% |
| Woodbury County | 7.0% |
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 | |
|---|---|---|---|---|
| 51056 | $-1 | $113,875 | $120,455 | $75,000 |
| Smithland city | $-1 | $124,375 | $86,667 | $-1 |
| Monona County | $46,307 | $92,452 | $76,307 | $38,363 |
| Woodbury County | $55,368 | $81,268 | $88,314 | $50,680 |
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 51056 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+ | |||||
| 51056 | +/-$25,137 | +/-$19,363 | +/-$13,361 | +/-8.5% | +/-$-1 | +/-$14,505 | +/-$51,219 | +/-$72,623 |
| Smithland city | +/-$52,255 | +/-$16,883 | +/-$12,682 | +/-29.8% | +/-$-1 | +/-$12,175 | +/-$33,231 | +/-$-1 |
| Monona County | +/-$6,651 | +/-$4,335 | +/-$1,620 | +/-1.3% | +/-$10,189 | +/-$9,177 | +/-$6,126 | +/-$5,163 |
| Woodbury County | +/-$2,611 | +/-$2,937 | +/-$1,120 | +/-1.2% | +/-$13,152 | +/-$5,067 | +/-$6,529 | +/-$3,089 |