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Polk County

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The Census includes all residents of the United States, regardless of their citizenship status. In some areas of the country, those without American citizenship account for a substantial proportion of the population, while in many areas, particularly in the Midwest, the make up only a small percentage of residents. Likewise, in some areas the majority of the population has come from other states within the U.S. while in others, particularly in the South, the population is more stable over time.

Nativity and Citizenship Status, 1990-2000
1990 2000
Number Percent Number Percent
Total Population 17,347 100.00% 20,229 100.00%
Total Native Population 17,120 98.69% 19,691 97.34%
Born in US 17,069 98.40% 19,628 97.03%
Born in Same State 9,496 54.74% 10,689 52.84%
Born in Different State 7,573 43.66% 8,939 44.19%
Born Outside US 51 0.29% 63 0.31%
Total Foreign Born Population 227 1.31% 538 2.66%
Naturalized 100 0.58% 227 1.12%
Non-Naturalized 127 0.73% 311 1.54%

Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).

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