O'Brien County, Iowa's estimated 2024 population is 13,939 with a growth rate of -0.52% in the past year according to the most recent United States census data. O'Brien County, Iowa is the 57th largest county in Iowa. The 2010 population was 14,405 and has seen a growth of -3.23% since that time.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 13,574 | -73 | -0.53% |
| 2028 | 13,647 | -73 | -0.53% |
| 2027 | 13,720 | -73 | -0.53% |
| 2026 | 13,793 | -73 | -0.53% |
| 2025 | 13,866 | -73 | -0.52% |
| 2024 | 13,939 | -73 | -0.52% |
| 2023 | 14,012 | -73 | -0.52% |
| 2022 | 14,085 | 41 | 0.29% |
| 2021 | 14,044 | -106 | -0.75% |
| 2020 | 14,150 | 354 | 2.57% |
| 2019 | 13,796 | -10 | -0.07% |
| 2018 | 13,806 | 29 | 0.21% |
| 2017 | 13,777 | -144 | -1.03% |
| 2016 | 13,921 | -6 | -0.04% |
| 2015 | 13,927 | -118 | -0.84% |
| 2014 | 14,045 | -1 | -0.01% |
| 2013 | 14,046 | -108 | -0.76% |
| 2012 | 14,154 | -63 | -0.44% |
| 2011 | 14,217 | -188 | -1.31% |
| 2010 | 14,405 | 0 | 0% |
| 1990 | 15,444 | -1,528 | -9% |
| 1980 | 16,972 | -550 | -3.14% |
| 1970 | 17,522 | -1,318 | -7% |
| 1960 | 18,840 | -130 | -0.69% |
| 1950 | 18,970 | -323 | -1.67% |
| 1940 | 19,293 | 884 | 4.8% |
| 1930 | 18,409 | -642 | -3.37% |
| 1920 | 19,051 | 1,789 | 10.36% |
| 1910 | 17,262 | 277 | 1.63% |
| 1900 | 16,985 | 3,925 | 30.05% |
| 1890 | 13,060 | 8,905 | 214.32% |
| 1880 | 4,155 | 3,440 | 481.12% |
| 1870 | 715 | 707 | 8837.5% |
| 1860 | 8 | -13,566 | -99.94% |
Race | Population | Percentage (of total) |
|---|---|---|
| White | 12,682 | 89.92% |
| Two or more races | 681 | 4.83% |
| Other race | 382 | 2.71% |
| Black or African American | 186 | 1.32% |
| Asian | 86 | 0.61% |
| Native American | 44 | 0.31% |
| Native Hawaiian or Pacific Islander | 42 | 0.3% |
White
Two or more races
Other race
Black or African American
Asian
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 5,791 | 2.36 | 77.3 | 22.7 |
| Married | 3,134 | 2.97 | 92 | 8 |
| Non Family | 2,115 | 1.21 | 57.6 | 42.4 |
| Female | 337 | 3.6 | 60.5 | 39.5 |
| Male | 205 | 2.95 | 83.9 | 16.1 |
2.98
Average Family Size
2.36
Average Household Size
77.3%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 688 | 7.13% |
| Associates Degree | 1,433 | 14.85% |
| Bachelors Degree | 1,689 | 17.51% |
| Graduate Degree | 478 | 4.95% |
| High School Graduate | 3,436 | 35.61% |
| Less Than 9th Grade | 249 | 2.58% |
| Some College | 1,675 | 17.36% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 8,871 | 8,209 | 2,087 |
| Hispanic | 480 | 225 | 24 |
| 2+ Races | 337 | 122 | 15 |
| Other Race | 115 | 73 | 10 |
| Black | 94 | 94 | 35 |
| Asian | 68 | 68 | 6 |
| Native American | 42 | 36 | 7 |
| Islander | 28 | 20 | 0 |
The highest rate of high school graduation is among black people with a rate of 100%.
The highest rate of bachelors degrees is among black people with a rate of 37.23%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $51,631 | $62,991 | $45,820 |
| Graduate Degree | $68,052 | $69,081 | $62,750 |
| High School Graduate | $44,773 | $54,222 | $26,188 |
| Less Than 9th Grade | $35,824 | $42,212 | $14,044 |
| Overall | $47,227 | $55,982 | $32,625 |
| Some College | $46,658 | $56,431 | $34,291 |
$47,227
Average Earnings
$55,982
Average Male
$32,625
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
93.01% of O'Brien County, Iowa residents speak only English, while 6.99% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 5.45% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 12,211 | 1,400 | 11.47% |
| Hispanic | 1,009 | 330 | 32.71% |
| Other | 382 | 258 | 67.54% |
| Black | 186 | 161 | 86.56% |
| Multiple | 681 | 65 | 9.54% |
| Native | 44 | 1 | 2.27% |
13.81%
Overall Poverty Rate
13.35%
Male Poverty Rate
14.29%
Female Poverty Rate
The race most likely to be in poverty in O'Brien County, Iowa is Black, with 86.56% below the poverty level.
The race least likely to be in poverty in O'Brien County, Iowa is Native, with 2.27% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 2.93%. Among those working part-time, it was 18.78%, and for those that did not work, the poverty rate was 21.31%.
rate
Rate | Poverty |
|---|---|
| High School | 15.27% |
| Less Than 9th Grade | 14.63% |
| Some College | 8.03% |
| Bachelors or Greater | 7.71% |
rate
Rate | Poverty |
|---|---|
| Male Unemployed | 10.71% |
| Female Employed | 9.54% |
| Male Employed | 5.35% |
| Female Unemployed | 3.45% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $93,516 | $99,383 |
| Households | $68,216 | $81,625 |
| Married Families | $99,250 | $-999,999,999 |
| Non Families | $40,863 | $47,752 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
58.2%
Overall Marriage Rate
59.6%
Male Marriage Rate
56.8%
Female Marriage Rate
male
female
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.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
639
Number of Veterans
605
Male Veterans
34
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 223 |
| Korea | 108 |
| Second Gulf War | 80 |
| First Gulf War | 54 |
| World War II | 2 |
count
Age Group | Veterans |
|---|---|
| 75+ | 278 |
| 65 to 74 | 150 |
| 35 to 54 | 88 |
| 55 to 64 | 85 |
| 18 to 34 | 38 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 613 | 6.21% |
| Native American | 18 | 42.86% |
| 2+ Races | 8 | 2.18% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
7.36%
Veteran Poverty Rate
38.88%
Veteran Disability Rate
LaborForceParticipation
64.4%
Labor Force Participation
63.6%
Employment Rate
1.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
75.81%
Born in O'Brien County, Iowa
95.84%
Native Born
4.16%
Foreign Born
2.67%
Non Citizen
1.48%
Naturalized
95.84% of O'Brien County, Iowa residents were born in the United States, with 75.81% having been born in Iowa. 2.67% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.