Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Niobrara County, WY was 2198.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Niobrara County, WY reached a record high of 2303.00000 in January of 2015 and a record low of 2061.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Niobrara County, WY - last updated from the United States Federal Reserve on May of 2024.