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
Presidency of James Monroe winning the presidency, and they backed the candidacy of Governor Daniel D. Tompkins. Though Crawford desired the nomination, he did not strongly oppose Monroe's candidacy, as he hoped to position himself to succeed Monroe in 1820 or 1824. In the congressional nominating caucus held in March 1816, Monroe defeated Crawford in a 65-to-54 vote, becoming his party's presidential nominee. Tompkins won the party's vice presidential nomination. The moribund Federalist Party nominated Rufus King as their presidential nominee, but the Federalists offered little opposition following the conclusion of the War of 1812, which they had opposed. Some opponents of Monroe tried