Union Township, Washington County, Pennsylvania
| Union Township | |
| Township | |
 The historic Mingo Creek Presbyterian Church and Churchyard
| |
| Country | United States |
|---|---|
| State | Pennsylvania |
| County | Washington County |
| Area | 15.7 sq mi (41 km2) |
| - land | 15.4 sq mi (40 km2) |
| - water | 0.4 sq mi (1 km2) |
| Population | 5,599 (2000) |
| Density | 364.3 / sq mi (141 / km2) |
| Established | March 31, 1836 |
| Timezone | EST (UTC-4) |
| - summer (DST) | EDT (UTC-5) |
| Area code | 724 |
 Location of Union Township in Washington County
| |
 Location of Washington County in Pennsylvania
| |
 Location of Pennsylvania in the United States
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| Website: www.uniontwp.com | |