High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Baltimore is a village in Fairfield County, Ohio, United States. The population was 2,881 at the 2000 census. According to the United States Census Bureau, the village has a total area of 1.8 square miles (4.6 km²), all of it land. As of the census of 2000, there were 2,881 people, 1,159 households, and 786 families residing in the village. The population density was 1,616.8 people per square mile (624.9/km²).