Caroline County is a rural county located in the U.S. state of Maryland on its Eastern Shore. As of the 2020 census, the population was 33,293. Its county seat is Denton.
Dorchester County is a county located in the U.S. state of Maryland. At the 2010 census, the population was 32,618. Its county seat is Cambridge. The county was formed in 1669 and named for the Earl of Dorset, a family friend of the Calverts.
Arnold, a census-designated place (CDP) in Anne Arundel County, Maryland, United States, located just outside of the state's capital, Annapolis. It is located 18.78 miles south of Baltimore, and 29.97 miles east of Washington DC. The population was 23,106 at the 2010 census. Neighborhoods straddle College Parkway and Maryland Route 2. Arnold is located on the scenic Broadneck Peninsula. The ZIP code is 21012. It is bordered by Severna Park to the northwest, Cape Saint Claire to the southeast, Annapolis to the southwest, and Lake Shore to the northeast.
Cape St. Claire, a suburb of Annapolis, is a covenanted, unincorporated community as well as a census-designated place (CDP) in Anne Arundel County, Maryland, United States. While the community of Cape St. Claire lies entirely within the CDP and accounts for approximately 80% of the homes and residents, the CDP also includes the smaller communities of Atlantis, Walnut Ridge, Green Holly, and St. Claire Court. The population of the CDP was 8,747 at the 2010 census.
St. Charles is a planned community in Charles County, Maryland, United States. It is 22 miles (35 km) south-southeast of Washington, D.C., 24 miles (39 km) from northern Virginia and immediately south of Waldorf, which is the mailing address.. At the 2000 census, it was delineated as a census-designated place (CDP), with a population of 33,379. It was included in the Waldorf CDP for the 2010 census.
Algonquin is a census-designated place (CDP) in Dorchester County, Maryland, United States. The population was 1,241 at the 2010 census. The community was named for the Algonquin people, one of the Native American tribes in the East.
Cambridge is a city in Dorchester County, Maryland, United States. The population was 13,096 at the 2020 census. It is the county seat of Dorchester County and the county's largest municipality. Cambridge is the fourth most populous city in Maryland's Eastern Shore region, after Salisbury, Elkton and Easton.
Edgewood is an unincorporated community and census-designated place (CDP) in Harford County, Maryland, United States. The population was 25,562 at the 2010 census, up from 23,378 in 2000.
Potomac is a census-designated place (CDP) in Montgomery County, Maryland, United States, named after the nearby Potomac River. Potomac is the seventh most educated small town in America, based on percentage of residents with postsecondary degrees. Bloomberg Businessweek labeled Potomac as the twenty-ninth-richest zip code in the United States in 2011, stating that it had the largest population of any U.S. town with a median income of more than $240,000. In 2012, The Higley Elite 100 published a list of highest-income neighborhoods by mean household income, which included four neighborhoods in Potomac; one of these neighborhoods, "Carderock-The Palisades" was ranked the highest-income neighborhood in the United States, followed by "Beverly Hills-North of Sunset" in Beverly Hills, California and "Swinks Mill-Dominion Reserve" of McLean, Virginia. More recently, two Potomac neighborhoods were ranked among the ten wealthiest neighborhoods in the country by CNBC in 2014. In 2018, data from the American Community Survey revealed that Potomac was the sixth-wealthiest city in the United States. Many Potomac residents work in nearby Washington, D.C. and Northern Virginia.
Friendly is an unincorporated area and census-designated place (CDP) in Prince George's County, Maryland, United States, with an African-American majority population, located a few miles south of Washington, D.C. The population was 9,937 at the 2020 census.
Lanham is an unincorporated community and census-designated place in Prince George's County, Maryland, United States. As of the 2020 United States Census it had a population of 11,282. The New Carrollton station as well as an Amtrak station are across the Capital Beltway in New Carrollton, Maryland. Doctors Community Hospital is located in Lanham.
Lisbon is a census-designated place located in western Howard County in the state of Maryland, United States, located roughly between Baltimore and Frederick and north of Washington, D.C. It is contained in an area of roughly one square mile. Lisbon is located along Interstate 70 and Maryland Route 144 and is home to the first roundabout in Maryland. It first appeared as a CDP in the 2020 Census with a population of 282.
Taylors Island is an unincorporated community and census-designated place in Dorchester County, Maryland, United States, in the state's Eastern Shore region. The population was 173 at the 2010 census. It is known for hunting, crabbing and fishing. Ridgeton Farm was listed on the National Register of Historic Places in 1977. Bethlehem Methodist Episcopal Church and Grace Episcopal Church Complex were listed in 1979.
Croom is an unincorporated community and census-designated place in Southern Prince George's County, Maryland, United States. As of the 2020 census it had a population of 2,720. Croom largely consists of former tobacco farms and forests converted to Washington bedroom subdivisions such as nearby Marlton. The main part of Patuxent River Park is in Croom.
Elliott is an unincorporated community and census-designated place (CDP) in Dorchester County, Maryland, United States. The population was 52 at the 2010 census.
Brock Hall is an unincorporated area and census-designated place in eastern Prince George's County, Maryland, United States, located south of Largo and Bowie, and north of Upper Marlboro. As of the 2020 census, the CDP had a population of 13,181.
Marlboro Village is an unincorporated community and census-designated place (CDP) in Prince George's County, Maryland, United States. Per the 2020 census, the population was 9,221. It was newly delineated for the 2010 census prior to which the area was part of the Greater Upper Marlboro census-designated place.
Melwood is an unincorporated community and census-designated place (CDP) in Prince George's County, Maryland, United States. It was newly delineated for the 2010 census, at which time its population was 3,051. Per the 2020 census, the population was 3,977.
Queensland is a census-designated place south of Upper Marlboro in Prince George's County, Maryland, United States. The population of the CDP was 2,191 at the 2020 census. It was formerly known as Queenland until 2014 when its name was changed to Queensland and a small portion of its geography was transferred to Upper Marlboro.
Georgetown is an unincorporated community and census-designated place in western Kent County, Maryland, United States.Per the 2020 census, the population was 117. It should not be confused with the community of the same name 22 miles (35 km) to the northeast on the Kent/Cecil County border.
United States
Maryland 
Dorchester 