| County : | Williams County |
| State : | Ohio (OH) |
| Land Area : | 420.96 sq mi |
| Water Area : | 2.13 sq mi |
| Latitude : | 41.5649581 |
| Longitude : | -84.5843225 |
| Population (2010): | 37,642 |
| Population Estimate (2012) : | 37,779 |
| Population Density : | 89.42/sq mi |
| Housing Units (2012) : | 16,668 |
| Median Household Income (2012) : | $43,176 (Ohio : $48,246, USA : $53,046) |
| Median Family Income (2012) : | $53,721 (Ohio : $61,163, USA : $64,585) |
| Median House Price (2012) : | $100,300 (Ohio : $133,700, USA : $181,400) |
Williams County Cities / Towns
| Alvordton (217) | Blakeslee Village (96) | Bryan City (8,545) |
| Edgerton Village (2,012) | Edon Village (834) | Holiday City Village (52) |
| Kunkle (246) | Lake Seneca (465) | Montpelier Village (4,072) |
| Pioneer Village (1,380) | Pulaski (132) | Stryker Village (1,335) |
| West Unity Village (1,671) |
Williams County Zip Codes
| 43501 (788) | 43502 (6,933) | 43505 (96) |
| 43506 (14,830) | 43517 (3,744) | 43518 (2,726) |
| 43521 (2,811) | 43531 (216) | 43543 (7,771) |
| 43554 (2,408) | 43557 (3,393) | 43570 (3,106) |