| Unionville | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Pennsylvania#USA |
| Pushpin Label: | Unionville |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Butler |
| Subdivision Type3: | Township |
| Subdivision Name3: | Center |
| Area Total Km2: | 6.7 |
| Area Land Km2: | 6.7 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2010 |
| Population Total: | 962 |
| Population Density Km2: | 144.6 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1283 |
| Coordinates: | 40.9414°N -79.9619°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2633671 |
Unionville is a census-designated place[1] located in Center Township, Butler County, in the U.S. state of Pennsylvania. As of the 2010 census, the population was 962.[2]
Unionville is located in the northwestern corner of Center Township and is bordered to the southwest by the Shanor-Northvue CDP, to the north by Clay Township and to the west by Franklin Township. Pennsylvania Route 8 passes through the community, leading south 6miles to Butler, the county seat, and north to Harrisville.
It is in the Butler Area School District.[3] Butler Area Intermediate High School and Butler Area Senior High School are the district's comprehensive secondary schools.