Miramar Beach is a census-designated place (CDP) in Walton County, Florida, United States. The population was 8,002 at the 2020 census, up from 6,146 at the 2010 census. It is part of the Crestview—Fort Walton Beach–Destin, Florida Metropolitan Statistical Area. Although many other coastal localities in Florida have appended "Beach" to their names to distinguish themselves from an adjacent inland or cross-bay municipality – such as Miami Beach, St. Pete Beach, Fort Myers Beach, Panama City Beach, Melbourne Beach, Cocoa Beach, and Jacksonville Beach – the city of Miramar, Florida is actually over 450 miles (720 km) away in South Florida. Miramar Beach is due east of Destin, Florida. It is often considered to be part of the city of Destin. However, it has its own ZIP code (32550) and is in Walton County, whereas Destin is in Okaloosa County.

Miramar Beach is located in the southwestern corner of Walton County at 30°22′58″N 86°21′21″W / 30.38278°N 86.35583°W / 30.38278; -86.35583 (30.382698, -86.355962).

The CDP is located along the Gulf Coast. U.S. Route 98 is the main route through the CDP, and leads east 47 mi (76 km) to Panama City and west 9 mi (14 km) to Destin.

According to the United States Census Bureau, the total area of 4.7 square miles (12 km), of which 4.6 square miles (12 km) is land and 0.1 square miles (0.26 km) (2.54%) is water.

Historical population

Census	Pop.	Note	%±
1990	1,644		—
2000	2,435		48.1%
2010	6,146		152.4%
2020	8,002		30.2%
U.S. Decennial Census

As of the 2020 census, Miramar Beach had a population of 8,002 people with 4,334 households. There were 2.06 persons per household. There was a population of 1,139.6 per square mile.

3.1% of the population were under 5 years old, 13.5% were under 18 years old, and 34.1% were 65 years or older. 89.0% of the population were white, 5.5% were black or African American, 0.4% were American Indian or Alaska Native, 0.5% were Asian, 4.4% were two or more races, and 6.0% were Hispanic or Latino. 52.0% were female and 11.4% of the population were foreign born persons.There were 875 veterans living in the city.

The median value of owner-occupied housing units was $434,300. The median selected monthly owner costs with a mortgage was $2,322 and $791 for owners without a mortgage. The median gross rent was $1,565. 98.8% of the households had a computer and 90.4% had a broadband internet subscription. The median household income was $75,347. The per capita income was $56,876. 5.4% of the population lived below the poverty threshold.

98.4% of the population 25 years and older had a high school diploma. 53.6% of the population 25 years and older had a bachelor's degree or higher.

• Ross Kenseth, former racing driver