| Lemont Furnace, Pennsylvania | |
| Settlement Type: | Census-designated place |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Label: | Lemont Furnace |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Fayette |
| Subdivision Type3: | Township |
| Subdivision Name3: | North Union |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.68 |
| Area Land Km2: | 2.66 |
| Area Water Km2: | 0.02 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 715 |
| Population Density Km2: | 268.42 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 1050 |
| Coordinates: | 39.9142°N -79.6697°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 15456 |
| Blank Name: | FIPS code |
| Blank Info: | 42-42640 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1179192 |
| Area Total Sq Mi: | 1.03 |
| Area Land Sq Mi: | 1.03 |
| Area Water Sq Mi: | 0.01 |
| Population Density Sq Mi: | 695.53 |
Lemont Furnace is an unincorporated community and census-designated place in North Union Township, Fayette County, Pennsylvania, United States. It is located 3miles northeast of the city of Uniontown and approximately southeast of Pittsburgh. The community is part of the Pittsburgh metropolitan area. At the 2010 census, the population of Lemont Furnace was 827.[3]
Penn State Fayette, The Eberly Campus, a Commonwealth Campus of the Pennsylvania State University system, is located 2miles north of Lemont Furnace. The campus serves the students of Fayette, Greene, Somerset, Washington, and Westmoreland counties in southwestern Pennsylvania.