Lawrence is a census-designated place located in Cecil Township, Washington County in the state of Pennsylvania. The community is a Pittsburgh suburb located in northern Washington County near the Allegheny County line. As of the 2010 census the population was 540 residents.
Lawrence was mostly built as a miner's village for the Montour #4 Mine, which opened in 1914. Montour #4 closed in 1980 after flooding.
Black Box Corporation is based in Lawrence.
It is in the Canon-McMillan School District.