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 present time; however, the 1,000 population minimum outside of UAs has been constant, with the exception of Alaska, Hawaii, Puerto Rico, and places within American Indian reservations (see Table 9-5). Beginning with the 1970 census, the Census Bureau recognized as unincorporated places, the concentrated residential populations on and around military installations.

Table 9-5. Criteria for Qualification of CDPs From 1940 Through 1990 Places9-23