Puerto Ricans in Holyoke, Massachusetts
As of the 2010 census, Holyoke, Massachusetts had the largest Puerto Rican population, per capita, of any city in the United States outside Puerto Rico proper, with 47.7% or 44,826 residents being of Puerto Rican heritage, comprising 92.4% of all Latinos in the community. From a combination of farming programs instituted by the US Department of Labor after World War II, and the housing and mills that characterized Holyoke prior to deindustrialization, Puerto Ricans began settling in the city in the mid-1950s, with many arriving during the wave of Puerto Rican migration to the Northeastern United States in the 1980s.
Source: Wikipedia — Puerto Ricans in Holyoke, Massachusetts (CC BY-SA 4.0)