| Harwick, Pennsylvania | |
| Settlement Type: | Census-designated place |
| Mapsize: | 260px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Allegheny |
| Subdivision Type3: | Township |
| Subdivision Name3: | Springdale |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.14 |
| Area Land Km2: | 1.14 |
| Area Water Km2: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 850 |
| Population Density Km2: | 742.62 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 40.5561°N -79.8053°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 15049[3] |
| Area Code: | 724 |
| Blank Name: | FIPS code |
| Blank Info: | 42-33024 |
| Blank1 Name: | GNIS feature ID |
| Area Total Sq Mi: | 0.44 |
| Area Land Sq Mi: | 0.44 |
| Area Water Sq Mi: | 0.00 |
| Population Density Sq Mi: | 1923.08 |
Harwick is a census-designated place (CDP) in Allegheny County, Pennsylvania, United States, and is located within Springdale Township. As of the 2020 census, it had a population of 850.[4]