Dubuque County's estimated 2025 population is 99,231 with a growth rate of 0.17% in the past year according to the most recent United States census data. Dubuque County is the 8th largest county in Iowa. The 2010 population was 93,933 and has seen a growth of 5.64% since that time.
Data after 2023 is projected based on recent change
The racial composition of Dubuque County includes 89.85% White, and smaller percentages for Black or African American, Asian, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.
White
Two or more races
Black or African American
Asian
Other race
Native Hawaiian or Pacific Islander
Native American
Race | Population | Percentage (of total) |
|---|---|---|
| White | 88,908 | 89.85% |
| Two or more races | 4,104 | 4.15% |
| Black or African American | 2,890 | 2.92% |
| Asian | 1,225 | 1.24% |
| Other race | 966 | 0.98% |
| Native Hawaiian or Pacific Islander | 748 | 0.76% |
| Native American | 107 | 0.11% |
Married
Widowed
Divorced
Separated
Never Married
Dubuque County's average per capita income is $49,232. Household income levels show a median of $75,919. The poverty rate stands at 9.41%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,197 | $135,117 |
| Families | $98,842 | $121,878 |
| Households | $75,919 | $98,871 |
| Non Families | $42,232 | $57,432 |
Average Income
Median Household Income
Poverty Rate
