Population: 360,355 Percent of population between age 22-24: 6.4 percent Cost of Living Index: 95.3 Percent of housing units for rental: 44 percent Unemployment rate: 9.1 Average per-capita personal income: $40,045 Getty Images Population: 849,491 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 88.2 Percent of housing units for rental: 33 percent Unemployment rate: 5.1 Average per-capita personal income: $42,982 Getty Images Population: 1,227,278 Percent of population between age 22-24: 4.8 percent Cost of Living Index: 92.6 Percent of housing units for rental: 35 percent Unemployment rate: 5.2 Average per-capita personal income: $38,742 Getty Images Population: 5,865,086 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 91.9 Percent of housing units for rental: 38 percent Unemployment rate: 8.3 Average per-capita personal income: $46,570 AP Photo Population: 470,849 Percent of population between age 22-24: 5.8 percent Cost of Living Index: 95.4 Percent of housing units for rental: 41 percent Unemployment rate: 8.4 Average per-capita personal income: $35,715 Getty Images Population: 501,228 Percent of population between age 22-24: 4.5 percent Cost of Living Index: 96.3 Percent of housing units for rental: 38 percent Unemployment rate: 7.1 Average per-capita personal income: $41,008 Getty Images Population: 6,447,228 Percent of population between age 22-24: 3.9 percent Cost of Living Index: 91.9 Percent of housing units for rental: 38 percent Unemployment rate: 8.1 Average per-capita personal income: $41,764 AP Photo Population: 930,246 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 88.0 Percent of housing units for rental: 33 percent Unemployment rate: 6.5 Average per-capita personal income: $40,402 Getty Images Population: 686,212 Percent of population between age 22-24: 4.2 percent Cost of Living Index: 96.1 Percent of housing units for rental: 36 percent Unemployment rate: 6.8 Average per-capita personal income: $39,431 Getty Images Population: 343,092 Percent of population between age 22-24: 4.9 percent Cost of Living Index: 93.1 Percent of housing units for rental: 37 percent Unemployment rate: 8.6 Average per-capita personal income: $38,348 Getty Images Population: 5,476,241 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 139.7 Percent of housing units for rental: 34 percent Unemployment rate: 5.8 Average per-capita personal income: $56,984 Charles Dharapak Population: 4,588,680 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 131.1 Percent of housing units for rental: 37 percent Unemployment rate: 7.1 Average per-capita personal income: $53,553 Population: 416,095 Percent of population between age 22-24: 4.3 percent Cost of Living Index: 91.3 Percent of housing units for rental: 37 percent Unemployment rate: 7.9 Average per-capita personal income: $36,558 AP Photo Population: 786,947 Percent of population between age 22-24: 6.0 percent Cost of Living Index: 96.4 Percent of housing units for rental: 32 percent Unemployment rate: 8.2 Average per-capita personal income: $38,107 Getty Images Population: 1,189,981 Percent of population between age 22-24: 3.8 percent Cost of Living Index: 95.8 Percent of housing units for rental: 34 percent Unemployment rate: 7.9 Average per-capita personal income: $42,705 AP Photo Population: 562,993 Percent of population between age 22-24: 3.7 percent Cost of Living Index: 91.2 Percent of housing units for rental: 29 percent Unemployment rate: 6.6 Average per-capita personal income: $42,012 AP Photo Population: 1,801,848 Percent of population between age 22-24: 3.6 percent Cost of Living Index: 92.8 Percent of housing units for rental: 37 percent Unemployment rate: 7.6 Average per-capita personal income: $37,999 AP Photo Population: 901,208 Percent of population between age 22-24: 3.3 percent Cost of Living Index: 146.5 Percent of housing units for rental: 30 percent Unemployment rate: 8.7 Average per-capita personal income: $74,767 Kathleen O'Rourke Population: 391,516 Percent of population between age 22-24: 3.9 percent Cost of Living Index: 96.1 Percent of housing units for rental: 35 percent Unemployment rate: 7.2 Average per-capita personal income: $38,358 AP Photo Population: 3,407,848 Percent of population between age 22-24: 4.1 percent Cost of Living Index: 120.2 Percent of housing units for rental: 38 percent Unemployment rate: 9.2 Average per-capita personal income: $50,378 Population: 857,592 Percent of population between age 22-24: 4.6 percent Cost of Living Index: 107.7 Percent of housing units for rental: 33 percent Unemployment rate: 7.2 Average per-capita personal income: $42,206 AP Photo Population: 2,073,092 Percent of population between age 22-24: 4.3 percent Cost of Living Index: 96.2 Percent of housing units for rental: 35 percent Unemployment rate: 7.3 Average per-capita personal income: $36,285 AP Photo Population: 326,634 Percent of population between age 22-24: 6.5 percent Cost of Living Index: 90.8 Percent of housing units for rental: 33 percent Unemployment rate: 9.5 Average per-capita personal income: $33,075 AP Photo Population: 907,574 Percent of population between age 22-24: 4.8 percent Cost of Living Index: 166.7 Percent of housing units for rental: 45 percent Unemployment rate: 5.1 Average per-capita personal income: $45,496 AP Photo