[1] As an unincorporated area, Monkton has no legally defined boundaries, and its ZIP code (21111) includes a portion of adjacent Harford County.

Cummings initially named it Monckton Mills in honor of Rosanna Trites, a former love who was among the Pennsylvania Germans who had moved to Moncton in 1765.

[2] East of Monkton is an area named "My Lady's Manor", known for its horse farms, sprawling countryside, and old, stately homes set back from the country roads.

[3] Filmmaker Erik Kristopher Myers shot the 2013 thriller Roulette at various public and private locations on York Road and Mt.

[7] Experimental rock band Animal Collective recorded their 2003 album Campfire Songs on a screened-in porch in Monkton.