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O'Brien

County in Iowa (USA)

Contents: Population

The population development of O'Brien as well as related information and services (Wikipedia, Google, images).

O'BrienCounty15,44415,09614,39813,840
USA [United States of America]Federal Republic248,709,873281,421,906308,758,105327,167,434

Source: U.S. Census Bureau (web).

Explanation: 2000 population in the boundaries of 2010. 2010 and 2018 population in the boundaries of 2018.


Further information about the population structure:

Gender (E 2018)
Males6,927
Females6,913
Age Groups (E 2018)
0-14 years2,735
15-64 years8,246
65+ years2,859
Age Distribution (E 2018)
0-9 years1,774
10-19 years1,821
20-29 years1,539
30-39 years1,538
40-49 years1,447
50-59 years1,818
60-69 years1,821
70-79 years1,049
80+ years1,033
»Race« (E 2018)
White13,354
Black/African American178
Indigenous51
Asian118
Pacific Islander3
2 or more136
Ethnicity (E 2018)
Hispanic or Latino707
Other13,133

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