| District Name | Hartford Union High School District |
| State | Wisconsin |
| County | Dodge County Washington County |
| Statistical Area | Beaver Dam, WI Milwaukee-Waukesha, WI |
| Total Students (2021) | 1340 |
| District Growth Rate (2017-21) | -1.9% |
| Majority Race/Ethnicty | White (86.0%) |
| Free/Reduced Lunch Program | 27.24% |