Census Trend Charts Demographic Maps Rankings & Comparisons Segregation Data  

Zoom in and out of geography at levels: US, States or Metro Areas, and Counties within States.

You can zoom out to Iowa

Visit the SSDAN Web Site
CensusScope is a product of the Social Science Data Analysis Network.

O'Brien County

Print-Friendly Version


The Census includes all residents of the United States, regardless of their citizenship status. In some areas of the country, those without American citizenship account for a substantial proportion of the population, while in many areas, particularly in the Midwest, the make up only a small percentage of residents. Likewise, in some areas the majority of the population has come from other states within the U.S. while in others, particularly in the South, the population is more stable over time.

Nativity and Citizenship Status, 1990-2000
1990 2000
Number Percent Number Percent
Total Population 15,444 100.00% 15,102 100.00%
Total Native Population 15,263 98.83% 14,802 98.01%
Born in US 15,149 98.09% 14,765 97.77%
Born in Same State 12,645 81.88% 11,969 79.25%
Born in Different State 2,504 16.21% 2,796 18.51%
Born Outside US 114 0.74% 37 0.25%
Total Foreign Born Population 181 1.17% 300 1.99%
Naturalized 141 0.91% 132 0.87%
Non-Naturalized 40 0.26% 168 1.11%

Source: Census 2000 analyzed by the Social Science Data Analysis Network (SSDAN).

Home | About | Help | Contact | Use Policy