Monroe, Ohio Monroe, Ohio Monroe is a city located in east central Butler and west central Warren counties in the southwestern part of the U.S. state of Ohio. As of the 2010 Census, the city population was 12,442, up from 4,008 in 1990. Monroe was laid out in 1817 on the Dayton and Cincinnati pike. The city is named for President James Monroe, fifth President of the United States. In the early 1830s, Monroe contained one store and 119 inhabitants. Monroe is located at (39.444658, −84.364044). According to the United States Census Bureau, the city has a total area of , of
USS President Monroe (AP-104) Pacific Island bases. With the end of hostilities, she extended her cruises to Japan and participated in Operation Magic Carpet, the giant sealift organized to bring demobilizing servicemen home. "President Monroe" received five battle stars for World War II service. Lieutenant Junior Grade Richard Nixon shipped out from San Francisco to the South Pacific aboard the "President Monroe" in 1943. "President Monroe" entered Hunters Point Naval Drydock 12 January 1946, decommissioned, and was delivered to WSA 30 January, returned to American President Lines 21 February, and stricken from the Navy List 12 March. Following decommission, "President Monroe" was returned to