| Official Name: | Eldorado, Iowa |
| Settlement Type: | unincorporated community |
| Mapsize: | 250x200px |
| Pushpin Map: | Iowa |
| Pushpin Label: | Eldorado |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location of Eldorado within the state of Iowa |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Fayette County |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 932 |
| Coordinates: | 43.0506°N -91.8356°W |
| Postal Code Type: | ZIP code |
| Blank Name: | GNIS feature ID |
| Blank Info: | 456267 |
Eldorado is an unincorporated community in Fayette County, Iowa, United States. It is located at the junction of Iowa State Highway 150 and Major Road, six miles northeast of West Union.
Eldorado is the eastern part of Auburn Township.[1] Eldorado's population was 179 in 1902,[2] and 165 in 1925.[3] The population was 103 in 1940.[4]