Black Hawk County Flag

Black Hawk County

State:
Iowa
County Seat:
Waterloo

Black Hawk County's estimated 2025 population is 131,309 with a growth rate of 0.32% in the past year according to the most recent United States census data. Black Hawk County is the 5th largest county in Iowa. The 2010 population was 131,164 and has seen a growth of 0.11% since that time.

131,309
Total Population
232
Population Density (mi²)
5
Population Rank (State)
419 0.32%
Annual Population Growth

Black Hawk County Population

Black Hawk County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Black Hawk County includes 80.44% White, 9.61% Black or African American, and smaller percentages for Asian, other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White105,12580.44%
Black or African American12,5659.61%
Two or more races5,8804.5%
Asian3,2322.47%
Other race2,6432.02%
Native Hawaiian or Pacific Islander7060.54%
Native American5420.41%

Black Hawk County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Black Hawk County's average per capita income is $46,854. Household income levels show a median of $64,581. The poverty rate stands at 14.71%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$103,122$128,472
Families$86,319$111,282
Households$64,581$89,098
Non Families$42,099$55,614

$46,854

Average Income

$64,581

Median Household Income

14.71%

Poverty Rate