| County : | Lasalle County |
| State : | Illinois (IL) |
| Land Area : | 1,135.12 sq mi |
| Water Area : | 13.01 sq mi |
| Latitude : | 41.3433407 |
| Longitude : | -88.8859312 |
| Population (2010): | 113,924 |
| Population Estimate (2012) : | 113,688 |
| Population Density : | 100.36/sq mi |
| Housing Units (2012) : | 49,978 |
| Median Household Income (2012) : | $52,356 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $65,081 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $126,900 (Illinois : $190,800, USA : $181,400) |
Lasalle County Cities / Towns
| Cedar Point Village (277) | Dana Village (159) | Dayton (537) |
| Earlville City (1,701) | Grand Ridge Village (560) | Kangley Village (251) |
| Lake Holiday (4,761) | Lasalle City (9,609) | Leland Village (977) |
| Leonore Village (130) | Lostant Village (498) | Marseilles City (5,094) |
| Mendota City (7,372) | Millington Village (665) | Naplate Village (496) |
| North Utica Village (1,352) | Oglesby City (3,791) | Ottawa City (18,768) |
| Peru City (10,295) | Ransom Village (384) | Rutland Village (318) |
| Seneca Village (2,371) | Sheridan Village (2,137) | Somonauk Village (1,893) |
| Streator City (13,710) | Tonica Village (768) | Troy Grove Village (250) |
| Wenona City (1,056) |
Lasalle County Zip Codes
| 60470 (616) | 60518 (3,580) | 60531 (1,902) |
| 60537 (665) | 60541 (3,148) | 60548 (12,218) |
| 60549 (643) | 60551 (5,062) | 60552 (4,448) |
| 60557 (155) | 61301 (10,588) | 61316 (282) |
| 61321 (282) | 61325 (1,073) | 61332 (134) |
| 61334 (741) | 61341 (8,234) | 61342 (9,216) |
| 61348 (4,696) | 61350 (24,246) | 61354 (10,870) |
| 61358 (478) | 61360 (3,393) | 61364 (20,133) |
| 61370 (1,460) | 61372 (145) | 61373 (2,031) |
| 61377 (1,457) |