| Winfield, Pennsylvania | |
| Settlement Type: | census-designated place |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Union |
| Subdivision Type3: | Township |
| Subdivision Name3: | Union |
| Population As Of: | 2010 |
| Population Total: | 900 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Postal Code Type: | ZIP code |
| Postal Code: | 17889[1] |
| Area Code: | 272 and 570 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
Winfield is a census-designated place[2] located in Union Township, Union County in the state of Pennsylvania. The community is located in eastern Union County at the intersection of Pennsylvania Route 304 and U.S. Route 15, which is located along the shores of the West Branch Susquehanna River. As of the 2010 census[3] the population was 900 residents.