Harford County is located in the U.S. state of Maryland. As of the 2020 census, the population was 260,924. Its county seat is Bel Air. Harford County is included in the Baltimore-Columbia-Towson, MD Metropolitan Statistical Area, which is also included in the Washington-Baltimore-Arlington, DC-MD-VA-WV-PA Combined Statistical Area.
Woodlawn is an unincorporated community and census-designated place in Baltimore County, Maryland. Per the 2020 census, the population was 39,986. It is home to the headquarters of the Social Security Administration (SSA) and the Centers for Medicare and Medicaid Services (CMS). It is bordered by Catonsville on the south, by the Patapsco River and Howard County on the west, by Randallstown and Lochearn to the north, and by the City of Baltimore to the east. Parts of Woodlawn are sometimes informally referred to as Security, Maryland, due to the importance of the SSA's headquarters as well as nearby Security Boulevard and Security Square Mall.
The town of Bel Air is the county seat of Harford County, Maryland. According to the 2020 United States census, the population of the town was 10,661.
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Centreville is an incorporated town in Queen Anne's County, Maryland, United States on the Delmarva Peninsula. Incorporated in 1794, it is the county seat of Queen Anne's County. The population was 4,285 at the 2010 census. The ZIP code is 21617 and the area codes are 410 and 443. The primary local telephone exchange is 758. It hosts the Queen Anne's County Fair each summer and was home to three franchises during the existence of the Eastern Shore Baseball League—the Colts, Red Sox, and Orioles.
Oxon Hill is an unincorporated area and census-designated place (CDP) in southern Prince George's County, Maryland, United States. Oxon Hill is a suburb of Washington, located southeast of the downtown district and east of Alexandria, Virginia. It contains the new 300-acre (120 ha) National Harbor development on the shore of the Potomac River.
Millersville is an unincorporated community in Anne Arundel County, Maryland, United States. Population was 20,965 in 2015 based on American Community Survey data.
Churchville is an unincorporated community in Harford County, Maryland, United States, situated between the county seat, Bel Air, and Aberdeen, where Aberdeen Proving Ground is located.
Flintstone is an unincorporated community and census-designated place (CDP) in Allegany County, Maryland, United States. As of the 2010 census it had a population of 177. It is part of the Cumberland, MD-WV Metropolitan Statistical Area.
The Ma and Pa Trail is a 6.25-mile (10.1 km) multi-purpose rail trail that follows the path of the old Ma and Pa Railroad through Harford County, Maryland. It contains three linked trails, one unconnected, with plans to bridge the gap in the middle, bringing the total length to 10 miles (16 km). Both links of the trail have a variety of trail surfaces, have few steep hills or hazards, and contain overlooks and bridges when necessary.
Deer Creek is a 52.9-mile-long (85.1 km) river in Maryland and Pennsylvania that flows through the scenic areas of Harford County and empties into the Susquehanna River, roughly halfway between the Interstate 95 bridge and Conowingo Dam. Its watershed area is 171 square miles (440 km2). Its watershed area in MD is 145 square miles (380 km2), with 3% impervious surface in 1994. It serves as a divider between the agricultural and urban/suburban areas of Harford County.
Abingdon is a census-designated place in Harford County, Maryland, United States. It lies 25 miles (40 km) northeast of Baltimore on Maryland Route 7, near the Bush River, between Exits 77 and 80 of Interstate 95.
Barstow is a small, rural unincorporated community located at the crossroads of MD 231, German Chapel Road, and Barstow Road in Calvert County, Maryland, United States, immediately west of Prince Frederick. The community maintains its own zip code of 20610.
Lower Marlboro, is a small, waterfront unincorporated community located at the crossroads of MD 262 and Chaneyville Road in Calvert County, Maryland, United States, along the east bank of the Patuxent River.
Kingston is an unincorporated community in Somerset County, Maryland, United States. A small community at the head of navigation of the Big Annemessex River, it is located on Maryland Route 413 at the intersection of Kingston Lane. A very rural community far from any urban development, it is quite small in population, the land dominated by agricultural fields and tree farms.
Westover is an unincorporated community in Somerset County, Maryland, United States. It is located on Maryland Route 413 near its terminus at U.S. Route 13. Owing to its central location in Somerset County, Westover is home to many important services.
Bel Alton is an unincorporated community in Charles County, Maryland, United States. It is marked by old-style motels, a popular "bikers'" tavern, and other small businesses along U.S. Route 301 catering to local residents and interstate travelers. A series of interpretive signs on a side road mark various spots where, in April 1865, John Wilkes Booth stopped to hide during his flight south after assassinating President Abraham Lincoln. St. Ignatius Church and Cemetery, the oldest continuous Roman Catholic parish in the United States, is two miles west of Bel Alton on a scenic bluff overlooking a wide inlet of the Potomac River. The county fairgrounds are also nearby. The former Bel Alton African American high school building is now used for community activities. Before 1891, Bel Alton was known as Cox's Station after a local resident. The area is poised for growth as construction has started on a housing development, "Stagecoach Crossing", two miles north.
Glenwood is an unincorporated community in Howard County, Maryland, United States. It is located between Baltimore and Washington, D.C., therefore attracting commuters to those employment centers. The community features acres of open space and is districted to Bushy Park Elementary, Glenwood and Folly Quarter Middle, and Glenelg High schools. Union Chapel was listed on the National Register of Historic Places in 1975 and Round About Hills was added in 2008. The population in 2020 was approximately 3,416.
Maryland Route 924 is a state highway in the U.S. state of Maryland. The state highway runs 7.39 miles (11.89 km) from MD 24 near Emmorton to U.S. Route 1 and MD 24 in Bel Air. MD 924 is the old alignment of MD 24 through the Bel Air area in central Harford County. The state highway was originally constructed in the late 1920s and early 1930s. MD 924 was assigned when MD 24 was moved to a new divided highway to the west in 1987.
Benson is an unincorporated community in Harford County, Maryland, United States. Benson is located at the Harford county junction of U.S. Route 1 and Maryland Route 147, 3 miles (4.8 km) southwest of Bel Air and 19.45 miles northeast of Baltimore. Benson has a post office with ZIP code 21018 and is served by the Area Codes 410, 443 and 667.
