Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in McPherson County, KS was 27169.00000 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 McPherson County, KS reached a record high of 27348.00000 in January of 2021 and a record low of 26027.00000 in January of 2020. 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 McPherson County, KS - last updated from the United States Federal Reserve on May of 2024.