| Official Name: | Chester, Idaho |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Idaho#USA |
| Pushpin Label: | Chester |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Idaho |
| Subdivision Type2: | County |
| Subdivision Name2: | Fremont |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 5072 |
| Coordinates: | 43.9994°N -111.57°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 83421 |
| Area Code: | 208, 986 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 371984 |
Chester is an unincorporated community in Fremont County, Idaho, United States. Chester is located on U.S. Route 20 6miles northeast of St. Anthony. Chester has a post office with ZIP code 83421.[1]
Chester's population was estimated at 250 in 1909,[2] and was 100 in 1960.[3]
According to the Köppen climate classification,Chester has a warm-summer humid continental climate (Köppen climate classification: Dfb).