Founded in 1854, Washington County is one of 93 counties in the state of Nebraska. Historically, Washington County was one of nine original counties. The city of Blair is the county seat. With FIPS code of 177, Washington County has a population of 20,969 and area of 390 square miles (1,010 km2).
List of all cities in Washington County, NE alphabetically
| City/Town | Postal Code | Area Code |
| Arlington, NE | 68002 | 402 |
| Blair, NE | 68008 | 402 |
| Blair, NE | 68009 | 402 |
| Fort Calhoun, NE | 68023 | 402 |
| Herman, NE | 68029 | 402 |
| Kennard, NE | 68034 | 402 |
| Washington, NE | 68068 | 402 |