Clermont is a town in Pike and Wayne townships of Marion County, Indiana, United States. The population was 1,384 at the 2020 census. It has existed as an "included town" since 1970, when it was incorporated into Indianapolis as part of Unigov. It is legally part of Indianapolis, while retaining a town government under IC 36-3-2-5. The city is known fo…Clermont is a town in Pike and Wayne townships of Marion County, Indiana, United States. The population was 1,384 at the 2020 census. It has existed as an "included town" since 1970, when it was incorporated into Indianapolis as part of Unigov. It is legally part of Indianapolis, while retaining a town government under IC 36-3-2-5. The city is known for hosting Lucas Oil Raceway at Indianapolis, consisting of one of the nation's premier short-track ovals and also the premier American drag racing event, the NHRA U.S. Nationals.