| Official Name: | Merna, Illinois |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Illinois#USA |
| Pushpin Label: | Merna |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | McLean |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 810 |
| Coordinates: | 40.5167°N -88.8258°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 61761 |
| Area Code: | 309 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 413436[1] |
Merna is an unincorporated community in McLean County, Illinois, United States. Merna is 9miles east-northeast of downtown Bloomington. Merna formerly had a post office with ZIP code 61758, which was closed in the mid-2000s .[2]