| County : | Sangamon County |
| State : | Illinois (IL) |
| Land Area : | 868.30 sq mi |
| Water Area : | 8.72 sq mi |
| Latitude : | 39.7563782 |
| Longitude : | -89.6623110 |
| Population (2010): | 197,465 |
| Population Estimate (2012) : | 197,474 |
| Population Density : | 227.42/sq mi |
| Housing Units (2012) : | 89,901 |
| Median Household Income (2012) : | $55,355 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $71,475 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $124,100 (Illinois : $190,800, USA : $181,400) |
Sangamon County Cities / Towns
| Auburn City (4,771) | Berlin Village (180) | Buffalo Village (503) |
| Cantrall Village (139) | Chatham Village (11,500) | Clear Lake Village (229) |
| Curran Village (212) | Dawson Village (509) | Divernon Village (1,172) |
| Grandview Village (1,441) | Illiopolis Village (891) | Jerome Village (1,656) |
| Leland Grove City (1,503) | Loami Village (745) | Mechanicsburg Village (590) |
| New Berlin Village (1,346) | Pawnee Village (2,739) | Pleasant Plains Village (802) |
| Riverton Village (3,455) | Rochester Village (3,689) | Sherman Village (4,148) |
| Southern View Village (1,642) | Spaulding Village (873) | Springfield City (116,250) |
| Thayer Village (693) | Virden City (3,425) | Williamsville Village (1,476) |
Sangamon County Zip Codes
| 62515 (961) | 62520 (1,529) | 62530 (1,532) |
| 62536 (912) | 62539 (1,358) | 62545 (1,246) |
| 62548 (2,258) | 62558 (3,590) | 62561 (5,315) |
| 62563 (5,686) | 62613 (3,872) | 62615 (5,748) |
| 62625 (855) | 62629 (12,949) | 62661 (1,213) |
| 62670 (2,997) | 62677 (2,562) | 62684 (5,111) |
| 62689 (518) | 62690 (4,120) | 62692 (2,093) |
| 62693 (1,638) | 62701 (1,152) | 62702 (37,281) |
| 62703 (30,333) | 62704 (39,831) | 62707 (7,648) |
| 62711 (15,347) | 62712 (10,302) |