| Name | Black Hawk County |
| State | Iowa |
| FIPS Code | 19013 |
| County Seat | Waterloo |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 131,179 |
| Population Growth Rate(2020-2024) | 0.03% |
| Majority Ethnicity | White 81.65% |
| Public School Majority Ethnicity | White 61% |
| Partisan Voting Index | Democratic:+2 |
| Unemployment Rate (May 2026) | 3.9% |
| Sales Tax Rate (2025) | 7% |
| Area Code(s) | 319 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 81.65% |
| African American | 9.76% |
| Hispanic | 5.11% |
| Asian | 2.51% |
| Native American | 0.42% |
| Hawaiin/Pacific Islander | 0.55% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 61.43% |
| African American | 16.71% |
| Hispanic | 8.89% |
| Asian | 2.89% |
| Native American | 0.14% |
| Hawaiin/Pacific Islander | 2.06% |