Frederick is located in Frederick County. About 78,171 people live here (as of 2020). Between 2010 and 2020, the population grew from 65,239 to 78,171. The region is at 92 meters above sea level. The area covers about 60.1 square kilometers. There are about 3.259 streets in Frederick. The region was founded in 1745. The postal codes are 21701–21709. The dialing code is 240. Frederick is city in Frederick County, Maryland, United States. Among other things, Frederick has public Transport, hotels, restaurants, cafés, supermarkets, clothing Stores, attractions, museums, schools, banks, hairdressers, dentists, doctors and pharmacies. More information at
www.cityoffrederick.com.