| County : | Fond du Lac County |
| State : | Wisconsin (WI) |
| Land Area : | 719.55 sq mi |
| Water Area : | 46.29 sq mi |
| Latitude : | 43.7547219 |
| Longitude : | -88.4932840 |
| Population (2010): | 101,633 |
| Population Estimate (2012) : | 101,577 |
| Population Density : | 141.25/sq mi |
| Housing Units (2012) : | 43,910 |
| Median Household Income (2012) : | $53,399 (Wisconsin : $52,627, USA : $53,046) |
| Median Family Income (2012) : | $65,686 (Wisconsin : $66,415, USA : $64,585) |
| Median House Price (2012) : | $145,800 (Wisconsin : $169,000, USA : $181,400) |
Fond du Lac County Cities / Towns
| Brandon Village (879) | Campbellsport Village (2,016) | Eden Village (875) |
| Fairwater Village (371) | Fond du Lac City (43,021) | Mount Calvary Village (762) |
| North Fond du Lac Village (5,014) | Oakfield Village (1,075) | Ripon City (7,733) |
| Rosendale Village (1,063) | St. Cloud Village (477) | St. Peter (1,489) |
| Taycheedah (704) | Van Dyne (279) | Waupun City (11,340) |
Fond du Lac County Zip Codes
| 53006 (1,779) | 53010 (7,681) | 53011 (2,260) |
| 53014 (7,962) | 53019 (2,027) | 53040 (8,064) |
| 53048 (3,364) | 53049 (2,451) | 53057 (1,928) |
| 53061 (5,196) | 53065 (2,226) | 53079 (1,413) |
| 53919 (2,629) | 53931 (237) | 53946 (4,386) |
| 53963 (13,910) | 54932 (1,185) | 54935 (41,651) |
| 54937 (19,112) | 54964 (1,022) | 54971 (10,827) |
| 54974 (1,581) | 54979 (1,472) |