Marshallville is a city in Macon County, Georgia, United States.

SR 49 leads southwest 13 miles (21 km) to Montezuma, the largest city in the county, and north 8 miles (13 km) to Fort Valley.

SR 127 goes southwest out of town with SR 49 but then leads west 21 miles (34 km) to Rupert, while to the east it leads 13 miles (21 km) to Perry.

According to the United States Census Bureau, Marshallville has a total area of 3.2 square miles (8.3 km2), of which 0.03 square miles (0.08 km2), or 1.01%, are water.

[1] As of the 2020 United States census, there were 1,048 people, 560 households, and 309 families residing in the city.