(County Rates as a Percentage of the U.S. Average)
Per capita market income is a measure of an area’s total personal income, less transfer payments, divided by the resident population of the area. The percent of the U.S. average is computed by dividing the county per capita market income by the national average and multiplying by 100. The map uses critical breaks such as the national average to organize the data into groups of common values.
The Appalachian rates range from 25.0% to 125.8% of the U.S. average. The U.S. average is $39,778. The Appalachian average is $29,282. See Excel file.