Lyon County's estimated 2025 population is 12,618 with a growth rate of 1.18% in the past year according to the most recent United States census data. Lyon County is the 59th largest county in Iowa. The 2010 population was 11,569 and has seen a growth of 9.07% since that time.
Data after 2023 is projected based on recent change
The racial composition of Lyon County includes 94.56% White, and smaller percentages for other race, Asian, Black or African American, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 11,429 | 94.56% |
| Two or more races | 430 | 3.56% |
| Other race | 132 | 1.09% |
| Asian | 54 | 0.45% |
| Black or African American | 36 | 0.3% |
| Native American | 6 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Lyon County's average per capita income is $47,628. Household income levels show a median of $72,881. The poverty rate stands at 5.33%.
Name | Median | Mean |
|---|---|---|
| Married Families | $93,816 | - |
| Families | $88,125 | $103,893 |
| Households | $72,881 | $89,389 |
| Non Families | $39,514 | $50,559 |
Average Income
Median Household Income
Poverty Rate