LYCOS RETRIEVER 
Census (U.S.): Counties
built 384 days ago
A rule of thumb for census costs in developing countries have for a long time been 1 USD / enumerated person. More realistic figures today are around 3 USD. These approximates should be taken with great care since a various amount of activities can be included in different countries (e.g. enumerators can either be hired or requested from civil servants). The cost in developed countries is far higher. The cost for the 2000 census in the US is estimated to 4.5 billion USD.
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One way is to create a map of the city with Census tracts overlaid. Another is to use the interactive report to "drill down" from county to city to Census tract, block group, and block. (This report is one of the options on DFW Region search page.) Click on the name of the geographic area (county, city, etc.) to select the smaller geographies that are part of it. Note that only Census blocks nest exactly to city boundaries; there will always be some overlap with tracts and block groups.
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Because of World War II, there was no census in 1941. However, following the passage into law (on 5 September 1939) of the National Registration Act a population count was carried out on 29 September 1939, which was, in effect, a census.
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