All told, data are presented for 6920 places in the United States. Statistics are presented in the 1997 Economic Census for towns in the six New England states, New York, and Wisconsin, and townships in Michigan, Minnesota, New Jersey and Pennsylvania with a 1990 census population of 10,000 or more. These 669 towns and townships are presented in the same tables as places. Its use largely replaces that of the 4-digit census place code used in 1987 and earlier censuses. The legal aspects of this action may result in both the primary incorporated place and the county or MCD continuing to exist as legal entities, even though the county or MCD performs few or no governmen- tal functions and has few or no elected officials.
Consolidated cities appear only in selected files.
Each consolidated city is assigned a one-character alphabetic census code. Each consolidated city also is assigned a five-digit FIPS code that is unique within State. Some MA's are defined around two or more nuclei. An MA comprises one or more central counties. An MA also may include one or more outlying counties that have close economic and social relationships with the central county.