[1] Hereford most commonly refers to the stores and residences around Exit 27, off Interstate 83, including Graul's Market,[2] an M&T Bank branch, and an Exxon gas station.

Addresses in Hereford are listed as being in Parkton, which also encompasses the northern Baltimore County community of Maryland Line.

Hereford is an important crossroads for commuters traveling between Pennsylvania (primarily York County) and Baltimore.

Hereford also serves as a miniature commercial hub for surrounding communities in northern Baltimore County, with the Hereford corridor of Mount Carmel Road, featuring several banks, pharmacies, medical offices, and a grocery store.

For Baltimore and York County residents, Hereford is most easily accessed via Interstate 83 at Exit 27.