Sebastian, FL

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Sebastian is the most populous city in Indian River County, Florida. It is located at the confluence of the St. Sebastian River and the Indian River. It is located near the Pelican Island National Wildlife Refuge just inland of the Atlantic Ocean.

As of the 2020 census, Sebastian had a population of 25,054.

Sebastian is a principal city of the Sebastian−Vero Beach Metropolitan Statistical Area, which includes all of Indian River County.