High School Graduate or Higher (5-year estimate) in Phillips County, CO was 89.10% in January of 2022, according to the United States Federal Reserve. Historically, High School Graduate or Higher (5-year estimate) in Phillips County, CO reached a record high of 89.30 in January of 2017 and a record low of 83.80 in January of 2014. Trading Economics provides the current actual value, an historical data chart and related indicators for High School Graduate or Higher (5-year estimate) in Phillips County, CO - last updated from the United States Federal Reserve on May of 2024.