A study published by priceonomics.com, an online “data crawling” company, considered major cities (with populations above 400,000) with respect to diversity of racial/ethnic groups. With data aggregated across entire cities, Sacramento ranked second only to Oakland in terms of city-wide diversity across five such groupings.
However, as described in the article linked below, that doesn’t account for cities that might be diverse at an aggregate level but extremely segregated within neighborhoods (as they found, for example, in Chicago). When the data was re-analyzed within census tracts, with results for each census tract then averaged within each city, Sacramento was found to be the least segregated or most racially/ethnically integrated major city in the US.
Interestingly, 7 of the top 10 least segregated cities in the US are also California cities.
For a look at the full study with associated charts, visit priceconomics.com.