| City : | Frankfort Square |
| County : | Will County |
| State : | Illinois (IL) |
| Land Area : | 2.53 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 41.5220880 |
| Longitude : | -87.8036235 |
| Population (2010): | 9,276 |
| Population Estimate (2012) : | 9,123 |
| Population Density : | 3,666.76/sq mi |
| Housing Units (2012) : | 3,063 |
| Median Household Income (2012) : | $83,289 (Illinois : $56,853, USA : $53,046) |
| Median Family Income (2012) : | $89,385 (Illinois : $70,144, USA : $64,585) |
| Median House Price (2012) : | $237,200 (Illinois : $190,800, USA : $181,400) |