| Official Name: | La Rue, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Union |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 351 |
| Coordinates: | 37.5456°N -89.4536°W |
| Area Code: | 618 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 411652 |
La Rue is an unincorporated community in Union County, in the U.S. state of Illinois.
A post office called La Rue was established in 1903, and remained in operation until 1909.[1] The community most likely has the name of a pioneer settler.[2]