Definitions: Land area is the size, in square units (metric and nonmetric)
of all areas designated as land in the Census Bureau's national geographic (TIGER®)
database. Persons per square mile is the average number of inhabitants
per square mile of land area. These figures are derived by dividing the total
number of residents by the number of square miles of land area in the specified
geographic area. The land area measurement is from the Census 2000. To determine
population per square kilometer, multiply the population per square mile by
.3861. Scope and Methodology: TIGER is an acronym for the digital (computer-readable) geographic database
that automates the mapping and related geographic activities required to support
the Census Bureau's census and survey programs. The Census Bureau developed
the Topologically Integrated Geographic Encoding and Referencing (TIGER) System
to automate the geographic support processes needed to meet the major geographic
needs of the 1990 census. Land area was calculated from the specific set of
boundaries recorded for the entity (in this case, counties, which were then
aggregated to metropolitan totals) in the Census Bureau's geographic database. Land area measurements are originally recorded as whole square meters (to convert
square meters to square kilometers, divide by 1,000,000; to convert square kilometers
to square miles, divide by 2.58999; to convert square meters to square miles,
divide by 2,589,988). Land area measurements may disagree with the information displayed on U.S.
Census Bureau maps and in the TIGER® database because, for area measurement
purposes, features identified as "intermittent water" and "glacier" are reported
as land area. The accuracy of any area measurement data is limited by the accuracy inherent
in (1) the location and shape of the various boundary information in the TIGER®
database and (2) rounding affecting the last digit in all operations that compute
and/or sum the area measurements. Identification of land is for statistical
purposes and does not necessarily reflect legal definitions. More Information: Land Area and Persons Per Square Mile