Ethnic Groups
The tables in this section include current estimates of the population by race group and Hispanic/Latino origin for counties and the state. Historical county and city-level tables describe changes in the population size of these demographic groups over time.
Sources for Related Data
Refer to the Data Sources section in the Atlas Guide to learn about sources for more detailed or related data on this topic.
An illustration from an 1890 statistical atlas of the United States, showing the composition of the
foreign-born population by state and country of origin. The largest groups in Iowa were:
Germany (black), Norway & Sweden (blue), Ireland (green), and Great Britain (pink).
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