Romney vs. Obama state by state poll numbers. JULY 18, 2012.

For the current polling data, I source the RealClearPolitics aggregate. The first statistic listed will be the 2008 election result, and the second the current poll numbers.

Latest numbers July 11-July 18, 2012

National
Obama +7- Pew Research
Romney +1- CBS/NYT
Obama +2- McClatchy/Marist
Obama +4- Fox News
Obama +2- Gallup
Romney +1- Rasmussen


State
North Carolina, Romney +1- Project New America
North Dakota, Romney +15- Rasmussen
Florida, Obama +1- Mason Dixon
Ohio, Obama +3- Purple Strategies
Florida, Romney +3- Purple Strategies
Virginia, Obama +2- Purple Strategies
Colorado, Obama +1- Purple Strategies
New Hampshire, Obama +4- WMUR/UNH
Iowa, Obama +5- PPP
New York, Obama +27- Siena
Virginia, Obama +1- Rasmussen
New Mexico, Obama +5- PPP
New Jersey, Obama +11- PPP


As of July 18, 2012

*Bold denotes swing state or emerging swing state

Alabama- McCain +21-----n/a
Alaska- McCain +21-----n/a
Arizona- McCain +9-----Romney +7 
Arkansas- McCain +20-----Romney +24
California- Obama +24-----Obama +17
Colorado- Obama +9-----Obama +3
Connecticut- Obama +23-----Obama +12
Delaware- Obama +24-----n/a
D.C.- Obama +86-----n/a
Florida- Obama +3-----Tie (Romney +1 from last week)  
Georgia- McCain +5-----Romney +10
Hawaii- Obama +46-----Obama +27
Idaho- McCain +25-----n/a
Illinois- Obama +25-----Obama +17
Indiana- Obama +1-----Romney +9
Iowa- Obama +10-----Obama +1 (Romney +1 from last week)
Kansas- McCain +15-----n/a
Kentucky- McCain +16-----n/a
Louisiana- McCain +18-----n/a
Maine- Obama +17-----Obama +15 
Maryland- Obama +25-----Obama +23
Massachusetts- Obama +25-----Obama +19 
Michigan- Obama +16-----Obama +2
Minnesota- Obama +10-----Obama +12
Mississippi- McCain +13-----n/a
Missouri- McCain +1-----Romney +3
Montana- McCain +2-----Romney +9
Nebraska- McCain +14-----Romney +14
Nevada- Obama +13-----Obama +5
New Hampshire- Obama +10-----Obama +5 (Romney +1 from last week)
New Jersey- Obama +16-----Obama +15
New Mexico- Obama +15-----Obama +11 (Romney +3 from last week)
New York- Obama +27-----Obama +26 (Obama +1 from last week)
North Carolina- Obama +1-----Romney +1
North Dakota- McCain +9-----Romney +14 (Romney +1 from last week)
Ohio- Obama +5-----Obama +4 (Obama +1 from last week)
Oklahoma- McCain +31-----Romney +35
Oregon- Obama +16-----Obama +6 
Pennsylvania- Obama +10-----Obama +8
Rhode Island- Obama +28-----Obama +17
South Carolina- McCain +9-----n/a
South Dakota- McCain +8-----n/a
Tennessee- McCain +15-----Romney +7
Texas- McCain +12-----Romney +7
Utah- McCain +28-----Romney +42
Vermont- Obama +37-----Obama +31
Virginia- Obama +6-----Obama +2 (Romney +1 from last week)
Washington- Obama +17-----Obama +11
West Virginia- McCain +13-----n/a
Wisconsin- Obama +14-----Obama +4  
Wyoming- McCain +32-----n/a

Changes- Obama narrowly increases edge in Ohio while Romney gains meager ground in New Mexico and New Hampshire. All remaining swing states remain statistical dead heats.