#10: Virginia's 10th District
Rep. Frank Wolf: Republican
Per capita income: $47,281
Frank Wolf, a Republican, has represented parts of the Fairfax, Virginia region since 1981. He announced in 2013 that he would not see reelection this year and plans to retire after 17 terms in the House.
Across the country, Democratic House districts have an average per capita income of $27,893, about $1,000 higher than the average income in Republican districts.