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 State of Equity Report - Local Diversity
Oregon Health Equity Data
 Receive email alerts when we add or update information about the Oregon Racial and Ethnic Data Report. Introduction
To provide context for the State of Equity report, we created a map of the racial and ethnic diversity across the state so we could better understand how diversity varies by geography within Oregon.
Diversity IndexThe Diversity Index* (DI) is used as a statistic measuring the probability that two randomly selected individuals from a given geography would be of different racial/ethnic backgrounds. If all people of a given area are of the same racial/ethnic background, the diversity index is zero. Indices closer to 1 indicate a highly diverse racial/ethnic geography. The DI for Oregon by census block is shown on this map. The index ranges from 0.04 to 0.76. Source: U.S. Census Bureau.
As one can see in the map above, Oregon's diversity is primarily located in the Portland Metropolitan Area: Washington and Multnomah Counties have the highest number of people of color, respectively. However, Morrow, Malheur, Jefferson, Hood River, and Umatilla Counties also show substantial diversity despite their smaller populations. Klamath, Lincoln, Marion, Wasco, Polk, Yamhill, Douglas, and Clatsop Counties also have notable pockets of diversity within their populations.
County-level diversity vs. populationThe following are maps of selected counties in Oregon. They compare the diversity of the county with their population density. Diversity refers to the diversity index as described in the map above. Different colors represent different combinations of levels (from low - high) of diversity and population density.
* Gibbs & Martin, 1962
A New York Times interactive website shows changes in immigration patterns in the U.S. from 1880 to 2000. From 1880 to 1980, the majority of immigrants to Oregon came from Europe, particularly Western Europe. That pattern has been changing for the past few decades. Oregon has experienced an increase in the proportion of immigrants from Canada, Latin America, Asia and the Middle East. For example:
To view a map of the immigration history of Oregon and throughout the United States, please visit the Immigration Explorer map created by the New York Times.
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