Melbourne is a city in Brevard County, Florida, United States. It is located 72 miles southeast of Orlando and 175 miles northwest of Miami. As of the 2020 Decennial Census, there was a population of 84,678. The municipality is the second-largest in the county by both size and population. Melbourne is a principal city of the Palm Bay – Melbourne – Titusville, Florida Metropolitan Statistical Area. In 1969, the city was expanded by merging with nearby Eau Gallie.