1) While 109 counties went from majority white to majority non-white over the past 18 years, just two — yes, TWO — went from majority non-white to majority white. (They were Calhoun County in South Carolina and West Feliciana Parish in Louisiana.)
2) Some of the largest counties in the country are changing the fastest. As Pew concludes: “In 21 of the 25 biggest U.S. counties by population, nonwhite groups together make up more than half of residents. Eight of these counties were majority white in 2000 but are no longer: San Diego, Orange, Riverside and Sacramento (all in California), plus Clark (Nevada), Broward (Florida), Tarrant (Texas) and Wayne (Michigan).”
And there are a handful of other huge counties (Fairfax in Virginia, Pima in Arizona, Milwaukee in Wisconsin) where the white population has sunk under 52% — and could well go majority non-white in the next few years.