| Official Name: | Eldorado, Pennsylvania |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Eldorado |
| Pushpin Label Position: | top |
| Coordinates: | 40.4831°N -78.4383°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Blair |
| Subdivision Type3: | Township |
| Subdivision Name3: | Logan |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 0.72 |
| Area Land Sq Mi: | 0.72 |
| Area Water Sq Mi: | 0.00 |
| Area Total Km2: | 1.87 |
| Area Land Km2: | 1.87 |
| Area Water Km2: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 712 |
| Population Density Sq Mi: | 983.43 |
| Population Density Km2: | 379.92 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1257 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 16601 (Altoona) |
| Area Code: | 814/582 |
| Blank Name: | FIPS code |
| Blank Info: | 42-22856 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2805493 |
Eldorado is an unincorporated community and census-designated place (CDP) in Blair County, Pennsylvania, United States. It was first listed as a CDP prior to the 2020 census.
The CDP is in western Blair County, along the southern border of Logan Township. It is bordered to the south by Allegheny Township and to the east by the Eldorado neighborhood in the city of Altoona.
Eldorado sits on the south side of the valley of Burgoon Run, at the base of the Allegheny Front, which rises to an elevation of just over 2miles to the west. Horseshoe Curve on the Pittsburgh Line of the Norfolk Southern Railway is to the northwest, up the valley of Burgoon Run.