| County : | Stephenson County |
| State : | Illinois (IL) |
| Land Area : | 564.52 sq mi |
| Water Area : | 0.54 sq mi |
| Latitude : | 42.3497262 |
| Longitude : | -89.6659942 |
| Population (2010): | 47,711 |
| Population Estimate (2012) : | 47,532 |
| Population Density : | 84.52/sq mi |
| Housing Units (2012) : | 22,081 |
| Median Household Income (2012) : | $44,572 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $56,891 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $103,400 (Illinois : $190,800, USA : $181,400) |
Stephenson County Cities / Towns
| Cedarville Village (741) | Dakota Village (506) | Davis Village (677) |
| Freeport City (25,638) | German Valley Village (463) | Lake Summerset (2,048) |
| Lena Village (2,912) | Orangeville Village (793) | Pearl City Village (838) |
| Ridott Village (164) | Rock City Village (315) | Winslow Village (338) |
Stephenson County Zip Codes
| 61007 (534) | 61013 (528) | 61018 (1,080) |
| 61019 (3,550) | 61027 (52) | 61032 (31,651) |
| 61039 (802) | 61044 (232) | 61047 (1,711) |
| 61048 (4,360) | 61050 (376) | 61060 (1,432) |
| 61062 (1,983) | 61063 (4,132) | 61067 (811) |
| 61070 (1,130) | 61078 (1,374) | 61087 (1,670) |
| 61089 (867) |