O'Brien County, Iowa Population 2018

O'Brien County, Iowa's estimated population is 13,801 with a growth rate of -1.81% in the past year according to the most recent United States census data. O'Brien County, Iowa is the 57th largest county in Iowa.

Year Population Growth Growth Rate
201713,801-254-1.81%
201614,0551340.96%
201613,92120.01%
201513,919-117-0.83%
201414,036-8-0.06%
201314,044-110-0.78%
201214,154-64-0.45%
201114,218-190-1.32%
201014,408-1,036-6.71%
199015,444-1,528-9.00%
198016,972-550-3.14%
197017,522-1,318-7.00%
196018,840-130-0.69%
195018,970-323-1.67%
194019,2938844.80%
193018,409-642-3.37%
192019,0511,78910.36%
191017,2622771.63%
190016,9853,92530.05%
189013,0608,905214.32%
18804,1553,440481.12%
18707157078837.50%
186080.00%

O'Brien County, Iowa Population Growth

Population Data via

Population by Race

Race Population
White13,281
Some Other Race381
Two or More Races163
Asian121
Black or African American68
American Indian and Alaska Native36
Native Hawaiian and Other Pacific Islander5

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

O'Brien 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

O'Brien County, Iowa Median Age

43.4


Total

40.7


Male

47.1


Female

O'Brien County, Iowa Adults

There are 10,780 adults, (2,895 of which are seniors) in O'Brien County, Iowa.

O'Brien County, Iowa Age Dependency

78.1

Age Dependency Ratio

36.6

Old Age Dependency Ratio

41.5

Child Dependency Ratio

O'Brien County, Iowa Sex Ratio

Female

7,011

49.88%

Male

7,044

50.12%

O'Brien County, Iowa Households and Families

O'Brien County, Iowa Renter vs Owner Occupied by Household Type

O'Brien County, Iowa Household Types

Type Owner Renter
Married85.6%14.4%
All71.9%28.1%
Male71.3%28.7%
Non Family57.2%42.8%
Female30.5%69.5%

71.9%

Rate of Home Ownership

O'Brien County, Iowa Households by Type

Type Count Average Size Owned
All6,0662.2571.9
Married3,3762.8885.6
Non Family2,1681.1357.2
Female3482.8530.5
Male1742.9571.3

2.82

Average Family Size

2.25

Average Household Size

5.1%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

O'Brien County, Iowa Households

O'Brien County, Iowa Education

O'Brien County, Iowa Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade3203.28%
9th to 12th Grade4524.63%
High School Graduate3,55336.37%
Some College2,25223.05%
Associates Degree1,23812.67%
Bachelors Degree1,48215.17%
Graduate Degree4714.82%

O'Brien County, Iowa Educational Attainment by Race

Name Total High School Bachelors
White9,2968,6391,878
Hispanic270179
Other Race184109
Asian847842
Multiple Races817418
Black423412
Native American2015
Islander333

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 islander people with a rate of 100.00%.

O'Brien County, Iowa Earnings by Educational Attainment

Name Average Male Female
Overall$34,346$42,668$25,542
Less Than High School$23,164$35,227$12,063
High School Grad$30,101$39,573$18,724
Some College$34,464$43,102$26,317
Bachelors Degree$45,498$57,125$39,350
Graduate Degree$60,682$$45,917

$34,346

Average Earnings

$42,668

Average Male

$25,542

Average Female

O'Brien County, Iowa Language

O'Brien County, Iowa Language by Age

O'Brien County, Iowa Language

95.30% of O'Brien County, Iowa residents speak only English, while 4.70% speak other languages. The largest non-English language is Spanish, which is spoken by 3.87% of the population.

O'Brien County, Iowa Poverty

O'Brien County, Iowa Poverty by Race

Name Total In Poverty Poverty Rate
White12,9131,1398.82%
Hispanic5807713.28%
Other375369.60%
Multiple1613018.63%
Asian1212823.14%
Native362877.78%
Black58915.52%

9.25%

Overall Poverty Rate

7.32%

Male Poverty Rate

11.22%

Female Poverty Rate

Poverty in O'Brien County, Iowa

The race most likely to be in poverty in O'Brien County, Iowa is Native, with 77.78% below the poverty level.

The race least likely to be in poverty in O'Brien County, Iowa is White, with 8.82% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.58%. Among those working part-time, it was 14.17%, and for those that did not work, the poverty rate was 12.92%.

O'Brien County, Iowa Poverty Rate by Education

Name Poverty
Less Than High School21.33%
High School8.60%
Some College5.47%
Bachelors or Greater1.95%

O'Brien County, Iowa Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed43.37%
Male Unemployed39.83%
Female Employed7.82%
Male Employed4.00%

O'Brien County, Iowa Income

O'Brien County, Iowa Income by Household Type

Name Median Mean
Households$52,474$70,726
Families$67,250$86,561
Married Families$72,402$
Non Families$25,599$40,108

O'Brien County, Iowa Marital Status

O'Brien County, Iowa Marital Status

Marriage Rates

60.2%

Overall Marriage Rate

63.3%

Male Marriage Rate

57.1%

Female Marriage Rate

O'Brien County, Iowa Married by Age and Sex

O'Brien County, Iowa Marriage

The age group where males are most likely to be married is 55To64, while the female age group most likely to be married is 35To44.

O'Brien County, Iowa Marital Status by Race

O'Brien County, Iowa Veterans

O'Brien County, Iowa Veterans by War

1,090

Number of Veterans

1,024

Male Veterans

66

Female Veterans

Name Veterans
Vietnam423
Korea233
First Gulf War92
Second Gulf War83
World War II58

O'Brien County, Iowa Veterans by Age

Name Veterans
75+396
65 to 74362
35 to 54166
55 to 64118
18 to 3448

O'Brien County, Iowa Veterans by Race

Name Veterans % of Total
White1,08110.50%
Hispanic216.48%
Other41.69%
Hawaiian360.00%
2 or More22.27%

O'Brien County, Iowa Veterans by Education

1.58%

Veteran Poverty Rate

30.35%

Veteran Disability Rate

O'Brien County, Iowa Employment Status

O'Brien County, Iowa Employment by Age

66.7%

Labor Force Participation

64.9%

Employment Rate

2.7%

Unemployment Rate

O'Brien County, Iowa Employment by Race

O'Brien County, Iowa Employment by Education

Population of Cities in O'Brien County, Iowa

City 2010 Census 2016 Estimated Growth Growth Rate
Sheldon 51915115-76-1.46%
Hartley16721618-54-3.23%
Sanborn14041396-8-0.57%
Paullina10561017-39-3.69%
Primghar909876-33-3.63%
Sutherland649616-33-5.08%
Calumet170169-1-0.59%
Archer131127-4-3.05%
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