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
James Monroe Jefferson continued to serve as a mentor to Monroe, and, at Jefferson's prompting, he befriended another prominent Virginian, James Madison. Monroe resigned from Congress in 1786 to focus on his legal career, and he became an attorney for the state. In 1787, Monroe won election to another term in the Virginia House of Delegates. Though he had become outspoken in his desire to reform the Articles, he was unable to attend the Philadelphia Convention due to his work obligations. In 1788, Monroe became a delegate to the Virginia Ratifying Convention. In Virginia, the struggle over the ratification of the proposed