Page:Geographic Areas Reference Manual (GARM).pdf/23

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Table 2-2. Number of Geographic Entities of the 1992 Economic and Agriculture Censuses

Type of Geographic Entity Status Economic Agriculture
Nation (the United States)
 
Legal
 
1
 
1
 
Regions (of the United States)
 
Statistical
 
4
 
__
 
Divisions (of the United States)
 
Statistical
 
9
 
__
 
States and Statistically Equivalent Entities
 
Legal
 
55
 
55
 
Counties and Statistically Equivalent Entities
 
Legal
 
3,227
 
3,171
 
County Subdivisions and Places 9,063 __
Incorporated Places Legal 6,897 __
Consolidated Cities Legal 7 __
Census Designated Places (CDPs) Statistical 65 __
Special Economic Urban Areas (SEUAs) Legal 1,640 __
Balance of Metropolitan Areas
 
Statistical
 
454
 
__
 
Metropolitan Areas (MAs) 348
 
__
 
Metropolitan Statistical Areas (MSAs) Statistical 253 __
Consolidated Metropolitan Statistical Areas (CMSAs) Statistical 19 __
Primary Metropolitan Statistical Areas (PMSAs)
 
Statistical
 
76
 
__
 
Special-Purpose Entities 40,900 40,900
ZIP Codes Administrative 40,900 40,900

showing the geographic hierarchies used in recent U.S. censuses provide a general picture of the most significant geographic patterns (see Figures 2-1 and 2-2). Figure 2-3 shows how several categories of small-area geographic entities subdivide a county.

The Presentation of Data for Geographic Entities

The value of statistical data is directly related to the appropriateness of the geographic entities for which it is reported. Existing legal and administrative entities suffice for some purposes. For others, it is better to use a set of statistical entities; still other applications require both kinds of entities. Some

Geographic Overview2-5