Washington was settled in April 1857 by colonists sent to grow cotton, and the city is named for the first president. Its Cotton Factory, begun in 1866 and enlarged in 1870, is on the National Register of Historic Places, and the city keeps other sites in its parks: the Old School museum, the Covington home, Adair Spring and the granary. It is now Washington County’s second-largest city, with 27,993 residents in 2020.
Interstate 15 runs through the city, with interchanges at Green Spring Drive and Washington Parkway. The city plans for growth: in 2018 it annexed more than 1,500 acres at Long Valley for master-planned development, about 1.5 miles from St. George Regional Airport. SunTran buses link Washington with St. George, Hurricane and the Zion corridor, and UDOT’s I-15 widening plan includes a new interchange at Main Street.