Waterloo city, Iowa
Official LSAD Designation: Waterloo city • Census GEOID: 1982425
• Black Hawk County
Waterloo city is an incorporated city in Black Hawk County, Iowa. According to official records from the Census (2025), Waterloo city had an estimated population of 66,919 residents. Official Census Bureau geographic records classify this community under LSAD designation Waterloo city (GEOID 1982425).
Local Government Administration U.S. Census Bureau GMAF
City Of Waterloo
Municipal
Official Title:
Mayor
Address:
715 MULBERRY ST, WATERLOO IA 50703-5783
County Of Black Hawk
County
Official Title:
Chairman
Address:
316 E 5TH ST, RM 201, WATERLOO IA 50703-4712
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 66,919 | 2025 |
| Median Household Income | $57,480 | 2020-2024 |
| Median Home Value | $152,600 | 2020-2024 |
| Land Area | 61.60 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).