Decatur County, Iowa Population 2019

Decatur County, Iowa's estimated population is 7,943 with a growth rate of -1.27% in the past year according to the most recent United States census data. Decatur County, Iowa is the 86th largest county in Iowa.

Year Population Growth Growth Rate
20187,890-53-0.67%
20177,943-102-1.27%
20168,045-87-1.07%
20158,132-76-0.93%
20148,208-8-0.10%
20138,216-23-0.28%
20128,239-8-0.10%
20118,247-172-2.04%
20108,419810.97%
19908,338-1,456-14.87%
19809,794570.59%
19709,737-802-7.61%
196010,539-2,062-16.36%
195012,601-1,411-10.07%
194014,012-891-5.98%
193014,903-1,663-10.04%
192016,5662191.34%
191016,347-1,768-9.76%
190018,1152,47215.80%
189015,6433072.00%
188015,3363,31827.61%
187012,0183,34138.50%
18608,6777,712799.17%
18509650.00%

Decatur County, Iowa Population Growth

Population Data via

Population by Race

Race Population
White7,733
Black or African American135
Two or More Races123
Asian53
American Indian and Alaska Native24
Some Other Race20
Native Hawaiian and Other Pacific Islander17

Decatur County, Iowa Population Pyramid 2019

Decatur County, Iowa Median Age

36.5


Total

34.6


Male

38.9


Female

Decatur County, Iowa Adults

There are 6,379 adults, (1,494 of whom are seniors) in Decatur County, Iowa.

Decatur County, Iowa Age Dependency

65.9

Age Dependency Ratio

30.6

Old Age Dependency Ratio

35.3

Child Dependency Ratio

Decatur County, Iowa Sex Ratio

Female

4,031

49.73%

Male

4,074

50.27%

Decatur County, Iowa Households and Families

Decatur County, Iowa Renter vs Owner Occupied by Household Type

Decatur County, Iowa Household Types

Type Owner Renter
Married80.3%19.7%
All66.4%33.6%
Non Family54.1%45.9%
Male51.2%48.8%
Female48.3%51.7%

66.4%

Rate of Home Ownership

Type Count Average Size Owned
All3,1722.3166.4
Married1,570380.3
Non Family1,1951.1854.1
Female2863.1248.3
Male1212.5851.2

2.94

Average Family Size

2.31

Average Household Size

6.3%

Unmarried (Opposite Sex)

0.3%

Unmarried (Same Sex)

Decatur County, Iowa Education

Education Attained Count Percentage
Less Than 9th Grade2835.77%
9th to 12th Grade4028.19%
High School Graduate1,81236.92%
Some College1,00720.52%
Associates Degree3487.09%
Bachelors Degree63813.00%
Graduate Degree4188.52%

Decatur County, Iowa Educational Attainment by Race

Name Total High School Bachelors
White4,6944,0651,017
Hispanic70504
Multiple Races524412
Asian41377
Black302716
Native American243
Islander33

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 53.33%.

Name Average Male Female
Overall$31,021$34,817$25,422
Less Than High School$20,529$24,028$13,167
High School Grad$26,414$35,089$20,423
Some College$30,506$34,549$26,801
Bachelors Degree$40,500$36,786$41,750
Graduate Degree$46,481$46,406$47,083

$31,021

Average Earnings

$34,817

Average Male

$25,422

Average Female

Decatur County, Iowa Language

Decatur County, Iowa Language by Age

Decatur County, Iowa Language

93.64% of Decatur County, Iowa residents speak only English, while 6.36% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 4.86% of the population.

Decatur County, Iowa Poverty

Decatur County, Iowa Poverty by Race

Name Total In Poverty Poverty Rate
White6,9501,30218.73%
Hispanic1584729.75%
Native2424100.00%
Black772329.87%
Asian34720.59%
Multiple11632.59%
Islander33100.00%

19.09%

Overall Poverty Rate

18.10%

Male Poverty Rate

20.09%

Female Poverty Rate

Poverty in Decatur County, Iowa

The race most likely to be in poverty in Decatur County, Iowa is Native, with 100.00% below the poverty level.

The race least likely to be in poverty in Decatur County, Iowa is Multiple, with 2.59% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.97%. Among those working part-time, it was 23.85%, and for those that did not work, the poverty rate was 26.49%.

Name Poverty
Less Than High School25.80%
High School15.10%
Some College12.18%
Bachelors or Greater6.73%
Name Poverty
Male Unemployed36.17%
Female Unemployed19.44%
Female Employed12.91%
Male Employed9.80%

Decatur County, Iowa Income

Decatur County, Iowa Income by Household Type

Name Median Mean
Households$41,042$52,082
Families$50,402$60,582
Married Families$56,528-
Non Families$23,904$36,460

Decatur County, Iowa Marital Status

Decatur County, Iowa Marital Status

Marriage Rates

48.7%

Overall Marriage Rate

49.3%

Male Marriage Rate

48.1%

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 Over 65, while the female age group most likely to be married is 35-44.

Decatur County, Iowa Marital Status by Race

Decatur County, Iowa Veterans

517

Number of Veterans

494

Male Veterans

23

Female Veterans

War Veterans
Vietnam230
Second Gulf War58
Korea56
First Gulf War46
World War II45

Decatur County, Iowa Veterans by Race

Name Veterans % of Total
White5018.24%
2 or More1016.13%
Hispanic31.67%
Asian35.66%
Indian312.50%

Decatur County, Iowa Veterans by Education

12.26%

Veteran Poverty Rate

48.64%

Veteran Disability Rate

Decatur County, Iowa Employment Status

60.4%

Labor Force Participation

57.4%

Employment Rate

5%

Unemployment Rate

Population of Cities in Decatur County, Iowa

City 2010 Census 2016 Estimated Growth Growth Rate
Lamoni23242354301.29%
Leon19771880-97-4.91%
Grand River236223-13-5.51%
Van Wert225213-12-5.33%
Garden Grove211207-4-1.90%
Davis City204193-11-5.39%
Decatur City197186-11-5.58%
Weldon125118-7-5.60%
Pleasanton4846-2-4.17%
Le Roy1514-1-6.67%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990