Robinwood is a census-designated place (CDP) in Washington County, Maryland, United States.

According to the United States Census Bureau, the CDP has a total area of 3.8 square miles (9.8 km2), all land.

As of the census[4] of 2000, there were 4,731 people, 1,918 households, and 1,294 families residing in the CDP.

There were 1,985 housing units at an average density of 526.2 per square mile (203.2/km2).

25.5% of all households were made up of individuals, and 9.7% had someone living alone who was 65 years of age or older.