Oakmont is a borough in Allegheny County, Pennsylvania, USA. It is a Pittsburgh suburb and part of the Pittsburgh Metro Area. In 1900, 2,323 people lived here; in 1910, 3,436, and in 1940, 6,260. The population was 6,911 at the 2000 census. Incorporated as a town in 1889, this Allegheny River community began in 1816 when a farmer, Michael Bright, bought a large tract of land 15 miles northeast of Pittsburgh. The settlement took its name from a landmark tree, as the deed description reads, "Beginning at a black oak on the bank of the Allegheny River ..." The borough is best known for the Oakmont Country Club, a premier golf course which has been the site of the United States Open Golf Championship tournaments in 1927, 1935, 1953, 1962, 1973, 1983, 1994, and 2007, and is scheduled to host it again in 2016. Oakmont is also home to the historic Oaks Theater, an independent movie theater, which shows artsy first-run films and cult classic cinema.
Oakmont is located at 40°31′10″N 79°50′15″W / 40.51944°N 79.8375°W / 40.51944; -79.8375 (40.519518, -79.837620).
According to the United States Census Bureau, the borough has a total area of 1.8 square miles (4.6 km²), of which, 1.6 square miles (4.2 km²) of it is land and 0.2 square miles (0.4 km²) of it (8.99%) is water. The business district of town is on relatively flat land near the Allegheny River but the main residential area is on the upward slope headed toward Oakmont Country Club and the Pennsylvania Turnpike.