| County : | Jo Daviess County |
| State : | Illinois (IL) |
| Land Area : | 601.08 sq mi |
| Water Area : | 17.64 sq mi |
| Latitude : | 42.3623905 |
| Longitude : | -90.2114705 |
| Population (2010): | 22,678 |
| Population Estimate (2012) : | 22,663 |
| Population Density : | 37.73/sq mi |
| Housing Units (2012) : | 13,574 |
| Median Household Income (2012) : | $52,164 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $61,988 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $141,200 (Illinois : $190,800, USA : $181,400) |
Jo Daviess County Cities / Towns
| Apple Canyon Lake (558) | Apple River Village (366) | East Dubuque City (1,704) |
| Elizabeth Village (761) | Galena City (3,429) | Hanover Village (844) |
| Menominee Village (248) | Nora Village (121) | Scales Mound Village (376) |
| Stockton Village (1,862) | The Galena Territory (1,058) | Warren Village (1,428) |
Jo Daviess County Zip Codes
| 61001 (1,179) | 61025 (4,867) | 61028 (1,989) |
| 61036 (6,821) | 61041 (1,327) | 61044 (232) |
| 61048 (4,360) | 61053 (2,852) | 61059 (141) |
| 61062 (1,983) | 61074 (4,431) | 61075 (958) |
| 61085 (3,443) | 61087 (1,670) |