| Official Name: | Gridley, Iowa |
| Pushpin Map: | Iowa |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Emmet |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1273 |
| Coordinates: | 43.3994°N -94.5733°W |
| Area Code: | 712 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 464037 |
Gridley is an unincorporated community in Emmet County, Iowa, United States.
Gridley was platted in 1899 when the Chicago & Northwestern railroad was extended to that point.[1] The railroad company named the town after Ashel Gridley, an Illinois banker.[2] A post office was established in Gridley in 1900, and remained in operation until being discontinued in 1910.
Gridley's population was 27 in 1925.[3]