| Youngstown | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | California#USA |
| Pushpin Map Caption: | Location in California |
| Coordinates: | 38.1739°N -121.2431°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | San Joaquin |
| Unit Pref: | US |
| Elevation Ft: | 66 |
| Timezone: | Pacific Time Zone |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Area Code Type: | Area codes |
| Area Code: | 209 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1660221 |
Youngstown is an unincorporated community in San Joaquin County, in the U.S. state of California.