Rocky Ripple is a town in Marion County, Indiana, United States. The population was 655 at the 2020 census. Founded in 1927, the town was incorporated as an "included town" as part of Unigov, the consolidated city-county government of Indianapolis and Marion County, in 1970; it also retains a separate functioning town government under IC 36-3-1-11. Although not far from the Indianapolis city center, Rocky Ripple is a somewhat isolated area, located between the Indiana Central Canal and the White River; only two traffic-supporting bridges over the canal provide access to the town.