Sykesville is a borough in Jefferson County, Pennsylvania, United States.

[2] Named for Jacob B. Sykes, an early resident,[3] Sykesville was the birthplace of Olga Madar (1915–1996), the first woman to become a vice-president in the United Auto Workers (1970) and founder of the Coalition of Labor Union Women (1974).

As of the census[6] of 2000, there were 1,246 people, 548 households, and 340 families residing in the borough.

There were 604 housing units at an average density of 380.4 per square mile (146.9/km2).

33.9% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.