STATE
DATA CENTER: DALLAS REMAINS FASTEST GROWING COUNTY IN IOWA
DES MOINES— Dallas County remains the fastest growing county
in Iowa, increasing its population by more than 31 percent since 2010,
according to new county and metropolitan statistical area population estimates
from the State Data Center via the U.S. Census Bureau. Johnson and Polk
counties followed with 14 and nearly 12 percent growth, respectively.
More than half of Iowans (52.1 percent) live in ten
counties: Polk, Linn, Scott, Johnson, Black Hawk, Woodbury, Story, Dubuque,
Pottawattamie, and Dallas. All of these counties are part of an Iowa metropolitan
statistical area. The Des Moines-West Des Moines metro area had the fastest
growth since 2010 at 13.4 percent, followed by the Iowa City metro area at 12.4
percent, and the Ames metro area at 8.9 percent.
Births, deaths, domestic migration, and international
migration are the some of the components that make up the population estimates.
Additional findings from the estimates include (all data compared to 2010
Census numbers):
·
Largest county: Polk, population 481,830
·
Smallest county: Adams, population 3,686
·
Largest population increase: Polk, adding 51,195
people
·
Largest population decrease: Clinton, losing
2,106 people
The
new county, metropolitan, and micropolitan population estimates, rankings, and
maps are available on the State Library’s State Data Center web site at www.IowaDataCenter.org.
These new estimates from the Census Bureau are based on
administrative data for births and deaths and estimates of migration since the
2010 census. Caution is urged in making year-to-year comparisons of population
estimates. When the Census Bureau releases new estimates for the current year
it also revises estimates for previous years in the decade.
The U.S. Census Bureau Population Estimates Program prepared
the latest population estimates in partnership with the Federal-State
Cooperative Program for Population Estimates. The State Data Center is part of
Iowa Library Services and is a member of the Federal-State Cooperative Program
for Population Estimates.
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