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Download (7Mb) - Iowa Publications Online - State of Iowa

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Population and Demographics<br />

<strong>Iowa</strong> Population Change<br />

FIGURE 3B — IOWA POPULATION CHANGE BY COUNTY<br />

1990-2000<br />

Pocahontas<br />

Linn<br />

Johnson<br />

Dallas<br />

Polk<br />

Source: U.S. Census Bureau, Census 1990 and Census 2000.<br />

http://www.census.gov<br />

• <strong>Iowa</strong>’s 5.4 percent growth in population from 1990 to 2000 was concentrated in and<br />

around metropolitan areas. Almost 25 percent <strong>of</strong> the state’s population resides in just<br />

four counties: Dallas, Johnson, Linn, and Polk.<br />

• Dallas County posted the greatest gains in population, increasing by 37 percent over<br />

the last ten years. Pocahontas County experienced the largest decline, a loss <strong>of</strong> 9.1<br />

percent <strong>of</strong> its citizens during the same period.<br />

• The most populous county in the state is Polk County, which reported a growth rate<br />

<strong>of</strong> 14.5 percent in the decade <strong>of</strong> the nineties.<br />

• Twenty-two <strong>of</strong> <strong>Iowa</strong>’s 99 counties grew at or above the state rate <strong>of</strong> 5.4 percent, with<br />

nearly half <strong>of</strong> those posting double-digit increases. Forty-five counties reported<br />

declines in population since 1990.<br />

4

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