Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Clayton County, IA was 16326.00000 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 Clayton County, IA reached a record high of 17615.00000 in January of 2010 and a record low of 16326.00000 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 Clayton County, IA - last updated from the United States Federal Reserve on May of 2024.