Elizabethtown is a census-designated place (CDP) in Whitewater Township, Hamilton County, Ohio, United States.

[4] Elizabethtown is located in the valley of the Great Miami River, 20 miles (32 km) west of downtown Cincinnati.

U.S. Route 50 runs through the center of the community, and Interstate 275 passes it to the northwest but does not provide direct access to it.

According to the United States Census Bureau, the CDP has a total area of 0.89 square miles (2.3 km2), all land.

55.9% of all households were made up of individuals, and 4.7% were someone living alone who was 65 years of age or older.