West Middletown is a borough in Washington County, Pennsylvania, United States.

[4] According to the United States Census Bureau, the borough has a total area of 0.4 square miles (1.0 km2), all land.

The racial makeup of the borough was 90.28% White, 4.17% African American, 1.39% Pacific Islander, and 4.17% from two or more races.

23.0% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.

There were 5.3% of families and 6.9% of the population living below the poverty line, including 18.5% of under eighteens and 3.8% of those over 64.