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 Governmental unit A geographic entity established by legal action, and for the purpose of implementing administrative or governmental functions. Most governmental units have officially recognized boundaries. All area and population of the United States are part of one or more legal units, such as American Indian reservations, States, counties, county subdivisions, and incorporated places. See also active governmental unit, administrative entity, functioning governmental unit, general-purpose government, inactive governmental unit, legal entity, nonfunctioning governmental unit.

Governments, (census) See census of governments.

Grant A type of nonfunctioning MCD in New Hampshire and Vermont.

GRF See Geographic Reference File.

GRF-C See Geographic Reference File (Codes).

GRF-N See Geographic Reference File (Names).

Group quarters A place where unrelated people live, such as a barracks, a boarding house, a dormitory, a hospital, or a prison. Group quarters are not typical housing units such as apartments, townhouses, and single family homes.

GSS See Geographic Support System.

Hierarchy (census geographic) See geographic hierarchy.

Historic Areas of Oklahoma The area of the former American Indian reservations that had legally established boundaries during the period 1900 through 1907 but were dissolved during the two- to three-year period preceding the establishment of Oklahoma as a State in 1907. The Historic Areas boundaries were delineated for the Census Bureau by the BIA and excluded all territory in urbanized areas. They were used for tabulating data from the 1980 census. G-28Glossary