Mercer County Courthouse, local government building in the United States

The Mercer County Courthouse is a three-story sandstone building on Southeast 3rd Street (Illinois Route 17) in Aledo, Illinois. Architect Mifflin E. Bell designed it in the Romanesque Revival style, with arched entrances on all four sides. A clock tower rises above the center of the building, and several dormers project from the sides of the roof.

Mercer County authorized the courthouse in 1893 to meet a growing population's needs, and it was completed in 1894. Architect Mifflin E. Bell designed the Romanesque Revival building and later expanded the same plans for the DuPage County Courthouse. It was added to the National Register of Historic Places on June 17, 1982.

The courthouse sits on Southeast 3rd Street, which is also Illinois Route 17, in Aledo. It was authorized in 1893 to meet the needs of a growing county and finished the next year. The building is listed on the National Register of Historic Places, added on June 17, 1982.

The courthouse stands on Southeast 3rd Street, which carries Illinois Route 17 through Aledo, so the building fronts a through road rather than a closed square. Its four arched entrances mean you can approach from any side of the block. The grounds are level and walkable; the clock tower and roof dormers are best seen from across the street.

Mifflin E. Bell designed this courthouse, then expanded on the same plans for the DuPage County Courthouse. The Mercer County building was authorized in 1893 and finished in 1894, and it joined the National Register of Historic Places on June 17, 1982.