Population Estimate, Total, Hispanic or Latino (5-year estimate) in Fairfield County, OH was 4508.00000 Persons in January of 2024, according to the United States Federal Reserve. Historically, Population Estimate, Total, Hispanic or Latino (5-year estimate) in Fairfield County, OH reached a record high of 4508.00000 in January of 2024 and a record low of 1858.00000 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 Fairfield County, OH - last updated from the United States Federal Reserve on April of 2026.