Homeacre-Lyndora is a census-designated place (CDP) in Butler County, Pennsylvania, United States.

The U.S. Census Bureau locates the CDP at 40°52′10″N 79°55′14″W / 40.86944°N 79.92056°W / 40.86944; -79.92056 (40.869461, −79.920460),[4] but it consists of several developed areas separated by forested valleys.

The CDP is bordered by Meridian on the west and by Shanor-Northview in Center Township on the north.

Pennsylvania Route 68 joins PA 356 in the Homeacre part of the CDP, leading east into Butler but traveling west to Connoquenessing, Evans City, and Zelienople.

Pennsylvania Route 8 passes through the eastern part of the CDP, interchanging with US 422 and leading south into downtown Butler and north to Harrisville and Franklin.

According to the United States Census Bureau, the CDP has a total area of 6.6 square miles (17.2 km2), all land.