Dundalk is an unincorporated community and census-designated place located in Baltimore County, Maryland. With a population of 67,796 as of the 2020 census, it is a significant residential area in the Baltimore metropolitan region. The community was named after Dundalk, a town in County Louth, Ireland.
Dundalk holds historical importance as one of the first inner-ring suburbs of Baltimore. During the 1960s and 1970s, it was the largest unincorporated community in Maryland, reflecting its growth during the postwar suburban expansion period. Despite its size and population density, Dundalk remains unincorporated, meaning it is not organized as an independent municipality but rather functions as part of Baltimore County.