[3] Although the surrounding parish was created in the 17th century, the current brick structure, which was listed on the National Register of Historic Places in 2004, was consecrated in 1849,[1] and planned to celebrate its 175th anniversary on May 31, 2024.

The Northumberland County court in 1653 had given native American names to its parishes, including Nominy, Chickacone and Great Wicomico.

Archibald Campbell served as rector from 1744 until his death in 1774, and also operated a school which educated many boys who later became prominent Patriots in the American Revolutionary War, including future President James Monroe (great, great grandson of church founder Andrew Monroe) and John Marshall, the fourth Chief Justice of the United States Supreme Court (son of Colonel Thomas Marshall).

In colonial times, Washington parish also included a church at Round Hill in what became King George county, which Rev.

[7] The existing brick sanctuary building was built in the Gothic Revival style, possibly by Baltimore architect Robert Cary Long Jr.

An exposed cross-beamed ceiling and higher and steeper roof, as well as additional double-stained glass windows were added in 1882–1883, when side-aisles were also removed in favor of a central aisle configuration.

[12] An adjacent area includes several 18th and 19th century gravestones moved from other cemeteries during redevelopment of those properties, but no actual interments.