Table 7. Top 10 States Trading with Mexico by Surface Modes of Transportation ,, Ranked by October 2008 Surface Trade Value,, (millions of dollars),, Rank,State,October 2008 1, Texas,"9,043" 2, California,"4,812" 3, Michigan,"2,835" 4, Illinois,"1,160" 5, Arizona,"1,002" 6, Ohio,836 7, Tennessee,580 8, Pennsylvania,503 9, North Carolina,477 10, Indiana,416 "Source: BTS TransBorder Freight Data, http://www.bts.gov/transborder/",, ,,