| Official Zip Code Name | Waterloo |
| Zip Code State | Ohio |
| Primary County: | Lawrence |
| Area Code | 740/220 |
| Current Population: | 37081 |
| Racial Majority: | White 62.49% |
| Median Household Income | $55618 |
| Average Adjusted Gross Income | $89060 |
| Time Zone: | 5 |
| Elevation Range | 846 ft. |
| Area | 34.034 Sqm. |
| Coordinates(Y,X) | 38.721697, -82.531994 |