From Wikipedia, the free encyclopedia
U.S. statistical division of unincorporated areas of counties
A
Census County Division
(CCD) is a
subdivision
of a
county
used by the
United States Census Bureau
for the purpose of presenting
statistical data
. A CCD is a relatively permanent statistical area delineated cooperatively by the Census Bureau and
state
and local government authorities. CCDs are defined in 21 states that do not have well-defined and stable
minor civil divisions
(MCDs), such as
townships
, with local governmental purposes, or where the MCDs are deemed to be "unsatisfactory for the collection, presentation, and analysis of census statistics".
[1]
[2]
[
dead link
]
CCDs are not governmental units and have no legal or governmental functions. Their boundaries usually follow visible features, such as roads, railroads, streams, power transmission lines, or mountain ridges, and coincide with the boundaries of
census tracts
. CCDs do not span county lines. Each CCD is given a name based on the name of the largest population center in the area, a prominent geographic feature, the county name, or another well-known local name that identifies its location.
[1]
[2]
[
dead link
]
CCDs were first implemented for tabulation of
1950 Census
data from the state of
Washington
. As of the
2010 census
, a total of 5,191 CCDs were defined in 20 states.
[2]
North Dakota
briefly adopted CCDs for the
1970 Census
, but soon returned to using MCDs for subsequent censuses. The main reason for abandoning CCDs was financial. As legal units of local government, MCDs could qualify for
federal revenue sharing
funds, while purely statistical areas like CCDs did not.
[2]
In 2008, Tennessee changed from using CCDs to using MCDs, leaving 20 states using CCDs as of the
2010 census
.
[3]
See also
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edit
]
References
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edit
]
External links
[
edit
]
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