| Official Name: | Yarnell, Pennsylvania |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Pennsylvania |
| Pushpin Label: | Yarnell |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Centre |
| Subdivision Type3: | Township |
| Subdivision Name3: | Boggs |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1099 |
| Coordinates: | 40.9978°N -77.8108°W |
| Area Code: | 814 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1191861 |
Yarnell is an unincorporated community in Boggs Township, Centre County, Pennsylvania, United States.[1] According to a 2020 census, the population was approximately 83(48 males, 35 females). The land area is 0.1700 km² with a population density of 488.2/km² as of 2020. There was a 12% increase in annual population change from 2010-2020.[2]