Chester in Delaware County, Pennsylvania — The American Northeast (Mid-Atlantic)
Historic Downtown Chester
The Old Civic Square
Chester's old court house (pictured above) was built ca. 1724, making it the oldest building currently standing in downtown Chester, and one of the oldest remaining public buildings in the nation. The structure served as the Chester County Courthouse until 1786, when the county seat was moved to West Chester. When Delaware County split from Chester County three years later, the building was put to use as the Delaware County Courthouse, until the seat was moved to Media in 1850. The building then served as City Hall until it was replaced in the 1920s by the building pictured below. The 1724 courthouse is now maintained by the Chester Community Improvement Project. It was added to the National Register of Historic Places in 1971.
Postcard Views of Market Street
Imagine today's Avenue of the States as it existed in its heyday -a bustling shopping district where trolleys passed by, going south through the location of today's City Hall. Travel back a bit farther, and you may see Gcorge Washington ride through town on his horse to stay at his favorite local inn. Every building has a story to tell, and those in downtown Chester are full of stories. These postcards show downtown Chester as it appeared from about 1905 to 1930.
Market Square
Market Street (today the southern end of Avenue of the States) was named for the old market house which stood near the present day City Hall. Though the market house (seen in the drawing, left) was gone by the 1860s, the Market Square remained for decades to come. It is pictured in the postcard, right.
1724 Courthouse lithograph is from A History of Delaware County, Pennsylvania by Charles Palmer. Old Market House drawing is from the Anna Broomall scrapbooks at the Delaware County Historical Society. Postcards courtesy of the Keith Lockhart Collection.
[Caption:]
Left: Postcard 5 shows the Washington House, one of downtown Chester's most important landmarks for over 200 years. The 1747 building is documented as being the hotel where George Washington stayed after the Battle of Brandywine, and where he wrote his account of the battle for Congress. Originally named the "Pennsylvania Arms, it was renamed for its prestigious guest.
Erected by Industrial Heritage Parkway, Delaware

Photographed by Devry Becker Jones (CC0), July 25, 2026
2. Historic Downtown Chester Marker
The marker has weathered but remains legible.
Topics. This historical marker is listed in these topic lists: Colonial Era • War, US Revolutionary. A significant historical year for this entry is 1724.
Location. 39° 50.852′ N, 75° 21.58′ W. Marker is in Chester, Pennsylvania, in Delaware County. It is at the intersection of Avenue of the States and West 4th Street, on the right when traveling south on Avenue of the States. Touch for map. Marker is at or near this postal address: 401 Avenue of the States, Chester PA 19013, United States of America. Touch for directions.
Regionally, this marker is in Southeast Pennsylvania and in Greater Philadelphia. It is also in the American Northeast and in the Mid-Atlantic. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy, New Netherland, and one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Lafayette's Tour (here, next to this marker); Fredia Gibbs (a few steps from this marker); Washington House

Photographed by Devry Becker Jones (CC0), July 25, 2026
3. Historic Downtown Chester and Lafayette's Tour Markers
Credits. This page was last revised on July 26, 2026. It was originally submitted on November 5, 2020, by Carl Gordon Moore Jr. of North East, Maryland. This page has been viewed 1,659 times since then and 71 times this year. Photos: 1. submitted on November 5, 2020, by Carl Gordon Moore Jr. of North East, Maryland. 2, 3. submitted on July 26, 2026, by Devry Becker Jones of Washington, District of Columbia. 4. submitted on November 5, 2020, by Carl Gordon Moore Jr. of North East, Maryland. • Bill Pfingsten was the editor who published this page.

