Lititz is a borough in Lancaster County, Pennsylvania, United States, 9 miles north of Lancaster. As of the 2020 census, it had a population of 9,370. Lititz was founded by members of the Moravian Church in 1756 and was named after a castle in Bohemia in the present-day Czech Republic, where the ancient Bohemian Brethren's Church was founded in 1457…Lititz is a borough in Lancaster County, Pennsylvania, United States, 9 miles north of Lancaster. As of the 2020 census, it had a population of 9,370. Lititz was founded by members of the Moravian Church in 1756 and was named after a castle in Bohemia in the present-day Czech Republic, where the ancient Bohemian Brethren's Church was founded in 1457. Lititz was one four leading Moravian communities in the Thirteen Colonies; Bethlehem, Emmaus, and Nazareth, each also in Pennsylvania, were the other three.