| Official Name: | Karthaus, Pennsylvania |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Pennsylvania |
| Pushpin Label: | Karthaus |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Clearfield |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 912 |
| Coordinates: | 41.1208°N -78.1139°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 16845 |
| Area Code: | 814 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1178239 |
Karthaus is an unincorporated community in Clearfield County, Pennsylvania, United States. The community is located along Pennsylvania Route 879, east-northeast of Clearfield. Karthaus has a post office with ZIP code 16845, which opened on April 24, 1826.[1] [2] The community was named after Peter A. Karthaus, the proprietor of a local blast furnace.[3]