United States - Population for Saint Lucia was 0.18279 Mil. of Persons in January of 2019, according to the United States Federal Reserve. Historically, United States - Population for Saint Lucia reached a record high of 0.18279 in January of 2019 and a record low of 0.10402 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for United States - Population for Saint Lucia - last updated from the United States Federal Reserve on March of 2024.