Ridgeway is a city in Harrison County, Missouri, United States. The population was 530 at the 2000 census.
Ridgeway is located at 40°22′43″N 93°56′17″W / 40.37861°N 93.93806°W / 40.37861; -93.93806 (40.378734, -93.937950).
According to the United States Census Bureau, the city has a total area of 1.2 square miles (3.0 km²). 1.2 square miles (3.0 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.72%) is water.