Vermont Senator Bernie Sanders was born in New York City in 1941, and by 1968 had permanently abandoned the rapidly minoritizing big city for virtually all-white Vermont. From Wikipedia:

In 1964, Sanders graduated from the University of Chicago with a bachelor of arts degree in political science, married his first wife, Deborah Shiling, and bought a summer home in Vermont. Over the next few years he took various jobs in New York and Vermont and spent several months on an Israeli kibbutz. By 1968, he was living in Vermont year-round.

It’s worth looking at the demographics of New York City from the 1940 to 1970 Censuses:

The nonwhite population of New York City grew by 2.35 million from 1940-1970. Blacks increased by 1.2 million and Hispanics by over 1.0 million. The growth in Puerto Ricans was especially sharp:

In contrast, the non-Hispanic white population of New York City declined by 1.9 million white people from 1940 to 1970, so Bernie had lots of company in white flight.

At the time of Bernie’s first Census in Vermont, in 1970, just how white was Vermont? The Census Bureau’s official report on Vermont in 1970 provides us with this informative graphic:

So, of every 445 people in Vermont two years after Bernie permanently arrived, 443 were white.

Vermont tied South Dakota for the lowest black percentage of any of the 50 states: 0.2%. Vermont was 0.6% Hispanic.

Relative to the rest of the country, not all that much has changed in Vermont during the years Bernie has exercised political power there. Vermont has been the whitest state in the Union for many of Bernie’s years there, although it was second whitest by 0.1% to Maine in 2010.