Marion County, Iowa Population 2018

Marion County, Iowa's estimated population is 33,105 with a growth rate of -0.28% in the past year according to the most recent United States census data. Marion County, Iowa is the 22nd largest county in Iowa.

Year Population Growth Growth Rate
201733,105-92-0.28%
201633,197480.14%
201633,149400.12%
201533,109-151-0.45%
201433,2602500.76%
201333,010-256-0.77%
201233,26640.01%
201133,262370.11%
201033,2253,22410.75%
199030,0013321.12%
198029,6693,31712.59%
197026,3524661.80%
196025,886-44-0.17%
195025,930-1,089-4.03%
194027,0191,2925.02%
193025,7277703.09%
192024,9571,9628.53%
191022,995-1,164-4.82%
190024,1591,1014.77%
189023,058-2,053-8.18%
188025,1116752.76%
187024,4367,62345.34%
186016,81311,331206.69%
18505,4820.00%

Marion County, Iowa Population Growth

Population Data via

Population by Race

Race Population
White31,849
Two or More Races503
Asian356
Black or African American210
Some Other Race185
American Indian and Alaska Native94

Race Data via US Census (2016 ACS 5-Year Survey)

Marion County, Iowa Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Marion County, Iowa Median Age

39.2


Total

38.2


Male

40


Female

Marion County, Iowa Adults

There are 25,197 adults, (5,511 of which are seniors) in Marion County, Iowa.

Marion County, Iowa Age Dependency

68.7

Age Dependency Ratio

28

Old Age Dependency Ratio

40.7

Child Dependency Ratio

Marion County, Iowa Sex Ratio

Female

16,740

50.43%

Male

16,457

49.57%

Marion County, Iowa Households and Families

Marion County, Iowa Renter vs Owner Occupied by Household Type

Marion County, Iowa Household Types

Type Owner Renter
Married87%13%
Male77.7%22.3%
All72.7%27.3%
Female52.9%47.1%
Non Family51.4%48.6%

72.7%

Rate of Home Ownership

Marion County, Iowa Households by Type

Type Count Average Size Owned
All13,0262.4272.7
Married7,3323.0887
Non Family4,3601.1651.4
Female7682.9652.9
Male5662.8277.7

2.99

Average Family Size

2.42

Average Household Size

4.4%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Marion County, Iowa Households

Marion County, Iowa Education

Marion County, Iowa Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade6943.21%
9th to 12th Grade8403.89%
High School Graduate7,74735.84%
Some College4,38120.27%
Associates Degree2,45711.37%
Bachelors Degree3,80917.62%
Graduate Degree1,6907.82%

Marion County, Iowa Educational Attainment by Race

Name Total High School Bachelors
White20,82119,3305,286
Asian23823873
Hispanic19717739
Multiple Races17115921
Black12411954
Native American948830
Other Race442917

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 43.55%.

Marion County, Iowa Earnings by Educational Attainment

Name Average Male Female
Overall$38,221$45,255$27,555
Less Than High School$23,371$29,583$11,404
High School Grad$32,455$40,777$24,068
Some College$35,775$45,224$26,770
Bachelors Degree$43,284$55,833$32,743
Graduate Degree$61,750$69,924$53,997

$38,221

Average Earnings

$45,255

Average Male

$27,555

Average Female

Marion County, Iowa Language

Marion County, Iowa Language by Age

Marion County, Iowa Language

96.57% of Marion County, Iowa residents speak only English, while 3.43% speak other languages. The largest non-English language is Spanish, which is spoken by 1.33% of the population.

Marion County, Iowa Poverty

Marion County, Iowa Poverty by Race

Name Total In Poverty Poverty Rate
White29,9642,5948.66%
Hispanic52925247.64%
Other18516488.65%
Multiple48314630.23%
Asian3266319.33%
Native943739.36%
Black1953115.90%

9.85%

Overall Poverty Rate

8.55%

Male Poverty Rate

11.16%

Female Poverty Rate

Poverty in Marion County, Iowa

The race most likely to be in poverty in Marion County, Iowa is Other, with 88.65% below the poverty level.

The race least likely to be in poverty in Marion County, Iowa is White, with 8.66% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.81%. Among those working part-time, it was 11.89%, and for those that did not work, the poverty rate was 17.57%.

Marion County, Iowa Poverty Rate by Education

Name Poverty
Less Than High School17.84%
High School8.85%
Some College8.43%
Bachelors or Greater4.18%

Marion County, Iowa Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed42.23%
Male Unemployed15.33%
Female Employed7.24%
Male Employed4.14%

Marion County, Iowa Income

Marion County, Iowa Income by Household Type

Name Median Mean
Households$57,412$67,848
Families$70,915$78,606
Married Families$76,997$
Non Families$32,554$44,504

Marion County, Iowa Marital Status

Marion County, Iowa Marital Status

Marriage Rates

56.5%

Overall Marriage Rate

57.2%

Male Marriage Rate

55.8%

Female Marriage Rate

Marion County, Iowa Married by Age and Sex

Marion County, Iowa Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 35To44.

Marion County, Iowa Marital Status by Race

Marion County, Iowa Veterans

Marion County, Iowa Veterans by War

1,967

Number of Veterans

1,809

Male Veterans

158

Female Veterans

Name Veterans
Vietnam739
Korea284
First Gulf War269
Second Gulf War244
World War II61

Marion County, Iowa Veterans by Age

Name Veterans
75+547
65 to 74519
55 to 64449
35 to 54293
18 to 34159

Marion County, Iowa Veterans by Race

Name Veterans % of Total
White1,9247.91%
Black2116.54%
Indian1414.89%
2 or More83.39%

Marion County, Iowa Veterans by Education

6.16%

Veteran Poverty Rate

33.54%

Veteran Disability Rate

Marion County, Iowa Employment Status

Marion County, Iowa Employment by Age

68.7%

Labor Force Participation

66.1%

Employment Rate

3.9%

Unemployment Rate

Marion County, Iowa Employment by Race

Marion County, Iowa Employment by Education

Population of Cities in Marion County, Iowa

City 2010 Census 2016 Estimated Growth Growth Rate
Pella 1035810255-103-0.99%
Knoxville73137241-72-0.98%
Pleasantville16941669-25-1.48%
Melcher-Dallas12881254-34-2.64%
Bussey422414-8-1.90%
Harvey23523831.28%
Hamilton130129-1-0.77%
Swan727200.00%
Marysville666600.00%
Data Sources
  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