Decatur County, Iowa Population 2022
Decatur County, Iowa's estimated population is 7,810 with a growth rate of -0.26% in the past year according to the most recent United States census data. Decatur County, Iowa is the 87th largest county in Iowa. The 2010 Population was 8,418 and has seen a growth of -7.22% since this time.
| Year | Population | Growth | Annual Growth Rate |
|---|---|---|---|
| 1850 | 965 | 0.00% | |
| 1860 | 8,677 | 7,712 | 799.17% |
| 1870 | 12,018 | 3,341 | 38.50% |
| 1880 | 15,336 | 3,318 | 27.61% |
| 1890 | 15,643 | 307 | 2.00% |
| 1900 | 18,115 | 2,472 | 15.80% |
| 1910 | 16,347 | -1,768 | -9.76% |
| 1920 | 16,566 | 219 | 1.34% |
| 1930 | 14,903 | -1,663 | -10.04% |
| 1940 | 14,012 | -891 | -5.98% |
| 1950 | 12,601 | -1,411 | -10.07% |
| 1960 | 10,539 | -2,062 | -16.36% |
| 1970 | 9,737 | -802 | -7.61% |
| 1980 | 9,794 | 57 | 0.59% |
| 1990 | 8,338 | -1,456 | -14.87% |
| 2010 | 8,418 | 80 | 0.96% |
| 2011 | 8,249 | -169 | -2.01% |
| 2012 | 8,239 | -10 | -0.12% |
| 2013 | 8,216 | -23 | -0.28% |
| 2014 | 8,209 | -7 | -0.09% |
| 2015 | 8,137 | -72 | -0.88% |
| 2016 | 8,053 | -84 | -1.03% |
| 2017 | 7,947 | -106 | -1.32% |
| 2018 | 7,890 | -57 | -0.72% |
| 2019 | 7,870 | -20 | -0.25% |
| 2020 | 7,850 | -20 | -0.25% |
| 2021 | 7,830 | -20 | -0.25% |
| 2022 | 7,810 | -20 | -0.26% |
Population by Race
| Race | Population | Percentage |
|---|---|---|
| White | 7,451 | 94.22% |
| Black or African American | 96 | 1.21% |
| Asian | 75 | 0.95% |
| Native Hawaiian and Other Pacific Islander | 14 | 0.18% |
| Some Other Race | 34 | 0.43% |
| Two or More Races | 238 | 3.01% |
Decatur County, Iowa Population Pyramid 2022
| Type | Count | Average Size | Owned |
|---|---|---|---|
| All | 3,242 | 2.22 | 64.6 |
| Married | 1,683 | 2.89 | 84.6 |
| Male | 74 | 2.22 | 51.4 |
| Female | 276 | 2.63 | 60.1 |
| Non Family | 1,209 | 1.19 | 38.6 |
2.76
Average Family Size
2.22
Average Household Size
| Education Attained | Count | Percentage |
|---|---|---|
| Less Than 9th Grade | 178 | 3.68% |
| 9th to 12th Grade | 315 | 6.51% |
| High School Graduate | 1,830 | 37.85% |
| Some College | 860 | 17.79% |
| Associates Degree | 370 | 7.65% |
| Bachelors Degree | 702 | 14.52% |
| Graduate Degree | 580 | 12.00% |
Decatur County, Iowa Educational Attainment by Race
| Race | Total | High School | Bachelors |
|---|---|---|---|
| Black | 23 | 18 | 18 |
| Islander | 8 | 8 | 5 |
| 2+ Races | 126 | 100 | 42 |
| White | 4,546 | 4,100 | 1,203 |
| Asian | 60 | 55 | 12 |
| Other Race | 13 | 13 | 1 |
| Hispanic | 80 | 68 | 6 |
The highest rate of high school graduation is among islander people with a rate of 100.00%.
The highest rate of bachelors degrees is among black people with a rate of 78.26%.
$34,276
Average Earnings
$40,550
Average Male
$27,127
Average Female
Decatur County, Iowa Language by Age
Decatur County, Iowa Language
95.46% of Decatur County, Iowa residents speak only English, while 4.54% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 2.74% of the population.
Decatur County, Iowa Poverty by Race
| Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| Multiple | 230 | 87 | 37.83% |
| Black | 42 | 9 | 21.43% |
| Asian | 56 | 12 | 21.43% |
| White | 6,694 | 1,005 | 15.01% |
| Islander | 14 | 2 | 14.29% |
| Other | 11 | NaN% | |
| Hispanic | 175 | 21 | 12.00% |
15.83%
Overall Poverty Rate
17.04%
Male Poverty Rate
14.62%
Female Poverty Rate
Poverty in Decatur County, Iowa
The race most likely to be in poverty in Decatur County, Iowa is Multiple, with 37.83% below the poverty level.
The race least likely to be in poverty in Decatur County, Iowa is Hispanic, with 12.00% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.81%. Among those working part-time, it was 25.77%, and for those that did not work, the poverty rate was 21.36%.
Decatur County, Iowa Marital Status
Marriage Rates
53.7%
Overall Marriage Rate
53.3%
Male Marriage Rate
54.0%
Female Marriage Rate
Decatur County, Iowa Married by Age and Sex
Decatur County, Iowa Marriage
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.
Decatur County, Iowa Marital Status by Race
| Name | Veterans | % of Total |
|---|---|---|
| White | 376 | 6.48% |
| Asian | 1 | 1.33% |
| 2+ Races | 60 | 32.61% |
| Hispanic | 1 | 0.56% |
Decatur County, Iowa Veterans by Education
12.50%
Veteran Poverty Rate
43.52%
Veteran Disability Rate
59.5%
Labor Force Participation
57.1%
Employment Rate
4%
Unemployment Rate
Origin of Non-Citizens
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Origin of Naturalized Citizens
66.44%
Born in Decatur County, Iowa
97.62%
Native Born
2.38%
Foreign Born
1.66%
Non Citizen
0.72%
Naturalized
Place of Birth
97.62% of Decatur County, Iowa residents were born in the United States, with 66.44% having been born in Iowa. 1.66% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
- US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
- Population of States and Counties of the United States: 1790 - 1990