Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Ottawa County, KS was 5374.00000 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 Ottawa County, KS reached a record high of 5867.00000 in January of 2010 and a record low of 5374.00000 in January of 2022. 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 Ottawa County, KS - last updated from the United States Federal Reserve on May of 2024.