| Howellville, Pennsylvania | |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Howellville |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location of Howellville in Pennsylvania |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Chester |
| Subdivision Type3: | Township |
| Subdivision Name3: | Tredyffrin |
| Population As Of: | 2010 |
| Population Density Sq Mi: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 200 |
| Elevation M: | 61 |
| Coordinates: | 40.0594°N -75.4697°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 19312 |
| Area Code: | 610 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Howellville is a populated place situated in Tredyffrin Township in Chester County, Pennsylvania, United States.[1] It has an estimated elevation of 200feet above sea level.