More than 44 percent of U.S. military recruits come from rural areas, Pentagon figures show. In contrast, 14 percent come from major cities. Youths living in the most sparsely populated Zip codes are 22 percent more likely to join the Army, with an opposite trend in cities. Regionally, most enlistees come from the South (40 percent) and West (24 percent).
Many of today's recruits are financially strapped, with nearly half coming from lower-middle-class to poor households, according to new Pentagon data based on Zip codes and census estimates of mean household income. Nearly two-thirds of Army recruits in 2004 came from counties in which median household income is below the U.S. median.
Such patterns are pronounced in such counties as Martinsville, Va., that supply the greatest number of enlistees in proportion to their youth populations. All of the Army's top 20 counties for recruiting had lower-than-national median incomes, 12 had higher poverty rates, and 16 were non-metropolitan, according to the National Priorities Project, a nonpartisan research group that analyzed 2004 recruiting data by Zip code.
http://www.washingtonpost.com/wp-dyn/content/article/2005/11/03/AR2005110302528.html