In 1988 the National Park Service listed the Newport Historic District on the National Register of Historic Places for its splendidly preserved examples of 19th- and 20th-century architecture. More than 400 structures dating from 1817 to 1944 make up the district, including a large residential neighborhood, a commercial area, industrial buildings, public buildings, three churches, and a cemetery. The district is historically significant for its long-term contribution to regional and local commerce and history. Its buildings remain largely intact and generally well preserved, providing important representative examples of 19th- and early 20th-century architecture. Framed by the topography, the buildings exhibit a cohesive unit of scale, massing, and building profile, and the district as a whole retains strong integrity.