 | United States. Bureau of the Census - 1953 - 648 halaman
...containing an area with a concentration of 100 dwelling units or more with a density in this concentration of 500 units or more per square mile. This density...per square mile and normally is the minimum found associated with a closely spaced street pattern. 3. Unincorporated territory with at least 500 dwelling... | |
 | United States. Federal Communications Commission - 1959 - 830 halaman
...containing an area with a concentration of 100 dwelling units or more with a density in this concentration of 500 units or more per square mile. This density...per square mile and normally is the minimum found associated with a closely spaced street pattern. "3. Unincorporated territory with at least 500 dwelling... | |
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Incorporated places with 2,500 inhabitants or more in 1940 or at a subsequent special census conducted prior to 1950. "2. Incorporated places with fewer than 2,500 inhabitants containing an area with a concentration of 100 dwelling units or more with... 