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Data Dictionary: Census 1980
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Survey: Census 1980
Data Source: U.S. Census Bureau and Social Explorer
Universe: Persons
Variable Details
T2. Urban and Rural (Persons)
Universe: Persons
T002_001Total Population
Percent base:
None - percentages not computed (variable is table universe)
Aggregation method:
Addition
Formula used to compute this variable:
#ReturnType oretval = new #ReturnType(); oretval = ORG_STF1:T001001; return oretval;
Variables used in the formula:
ORG_STF1:T001001
Total Population
Relevant Documentation:
Excerpt from: Social Explorer, U.S. Census Bureau; Census of Population and Housing, 1980 [United States]: Summary Tape File 1a [Computer file]. ICPSR version. Washington, DC: U.S. Dept. of Commerce, Bureau of the Census [producer], 1982. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2002.
  Summary Tape File 1 -> Summary Tape File 1 -- Part II -> Glossary -> Urban and Rural (Population)
Urban and Rural (Population)
Urban and rural are type-of-area concepts rather than specific areas outlined on maps. As defined by the Census Bureau, the urban population comprises all persons living in urbanized areas (UA's) and in places of 2,500 or more inhabitants outside UA's.

The rural population consists of everyone else. Therefore, a rural classification need not imply farm residence or a sparsely settled area, since a small city or town is rural as long as it is outside a UA and has fewer than 2.500 inhabitants.The terms urban and rural are independent of metropolitan and nonmetropolitan designations; both urban and rural areas occur inside and outside SMSA's.

Historical comparability
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Except for the minor relaxation of UA criteria discussed below, urban and rural definitions have been consistent since 1950. Within small counties, measurements of urban and rural populations over time may he significantly affected by the increase or decrease of a place's population across the 2,500 population threshold, e.g., the increase of 1 person to a place of 2,499 results in an increase of 2,500 to the county's urban population.