Trenton is also the site Clarkson S. Fisher Federal Building and United States Courthouse which serves the United States District Court for the District of New Jersey and the Richard J. Hughes Justice Complex, home to the Supreme Court of New Jersey.
Mercer County was formed in 1838 and soon after saw the erection of a Greek Revival courthouse at the corner of Broad and Market Streets, which served until 1903.
(40°12′57″N 74°45′45″W / 40.21585°N 74.76263°W / 40.21585; -74.76263 (Mercer County Courthouse)) The classical Beaux Arts building was designed by William Slack.
[4] The Mercer County Courthouse Annex at 205-207 South Broad Street was designed by Louis S. Kaplan and built in 1939.
[3] It designed by Trenton architectural firm Clarke Caton Hintz to invoke a 19th Century civic building.