Dundalk ( DUN-dawk or DUN-dok) is an unincorporated community and census-designated place in Baltimore County, Maryland, United States. The population was 67,796 at the 2020 census. In 1960 and 1970, Dundalk was the largest unincorporated community in Maryland. It was named after the town of Dundalk, Ireland. Dundalk is considered one of the first inner-ring suburbs of Baltimore.

The Place now known as Dundalk was first explored by John Smith in 1608. Up until this time, the area had been occupied by the tribes of the Susquehannock.

In 1856 Henry McShane, an immigrant from Ireland, established the McShane Bell Foundry upon the banks of the Patapsco River in the then far and wide southeastern outskirts of Baltimore. The foundry cutting edge relocated to the Patterson Park area of Baltimore until a ember during the 1940s caused it to have an effect on to 201 East Federal Street. In auxiliary to bronze bells, the foundry gone manufactured cast iron pipes and furnace fittings. When asked by the Baltimore and Sparrows Point Railroad for a broadcast of a depot for the foundry, which was on their rail line, McShane wrote Dundalk, after the town of his birth, Dundalk, Ireland. In 1977 the foundry moved to its current location in Glen Burnie.

In 1916 the Bethlehem Steel purchased 1,000 acres (4.0 km) of farmland, near the McShane foundry, to produce housing for its shipyard workers. The Dundalk Company was formed to aspire a town in the other style, similar to that of the Roland Park area of Baltimore, excluding businesses except at specific bad skin and desertion land for future loan of schools, playing fields, and parks. By 1917 Dundalk proper was founded, at which narrowing it had 62 houses, two stores, a broadcast office, and a telephone exchange. Streets were laid out in a pedestrian-friendly right of entry grid, with monikers like “Shipway”, “Northship”, “Flagship”, and “Admiral”. The two-story houses had steeply pitched roofs and stucco exteriors. As the request for steel increased sharply during World War 1, white workers streamed into Dundalk, pushing black workers into a little community within reach named Turner Station. Turner Station expanded even more during World War II as request for steel increased even more.