Population Estimate, Total, Hispanic or Latino (5-year estimate) in New Castle County, DE was 61685.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in New Castle County, DE reached a record high of 61685.00000 in January of 2022 and a record low of 39011.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Hispanic or Latino (5-year estimate) in New Castle County, DE - last updated from the United States Federal Reserve on May of 2024.