| State | Notes | Next Applicable Election | Voter Registration Deadline | 120 Days Before Deadline - Request Forms from State | 60 Days Before Deadline - States must provide forms to institutions | Phone Number | Department | Online Registration Form - English PDF format |
| Alabama | Voter registration is closed during the 10 days before the election. | 11/6/2012 | 10/27/2012 | 6/29/2012 | 8/28/2012 | (334) 242-7210 | Elections Division | Alabama Form |
| Alaska | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (907) 465-4611 | Division of Elections | Alaska Form |
| Arizona | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (602) 542-8683 | Elections | Arizona Form |
| Arkansas | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (501) 682-5070 | Elections | Arkansas Form |
| California | 15 days before the election. | 11/6/2012 | 10/22/2012 | 6/24/2012 | 8/23/2012 | (916) 657-2166 | Elections | California Form |
| Colorado | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (303) 894-2200 | Elections Division | Colorado Form |
| Connecticut | 14 days before the election (or a voter may register in-person at the county or state clerk's office 7 days before the election). | 11/6/2012 | 10/23/2012 | 6/25/2012 | 8/24/2012 | (860) 509-6100 | Election Administration | Connecticut Form |
| Delaware | 24 days before the election. | 11/6/2012 | 10/13/2012 | 6/15/2012 | 8/14/2012 | (302) 739-4277 | Department of Elections | Delaware Form |
| District of Columbia | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (202) 727-2525 | Board of Elections and Ethics | DC Form |
| Florida | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (850) 245-6200 | Division of Elections | Florida Form |
| Georgia | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (404) 656-2871 | Elections Division | Georgia Form |
| Hawaii | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (808) 453-8683 | Office of Elections | Hawaii Form |
| Idaho | 25 days before the election (or a voter may register in-person on election day at polling place). | 11/6/2012 | 10/12/2012 | 6/14/2012 | 8/13/2012 | (208) 334-2852 | Elections Division | Idaho Form |
| Illinois | 27 days before the election. | 11/6/2012 | 10/9/2012 | 6/11/2012 | 8/10/2012 | (217) 782-4141 | Board of Elections | Illinois Form |
| Indiana | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (317) 232-3939 | Election Division | Indiana Form |
| Iowa | 10 days before the election (or a voter may register in-person on election day at polling place).. | 11/6/2012 | 10/27/2012 | 6/29/2012 | 8/28/2012 | (515) 281-0145 | Elections | Iowa Form |
| Kansas | 15 days before the election. | 11/6/2012 | 10/22/2012 | 6/24/2012 | 8/23/2012 | (785) 296-4561 | Elections | Kansas Form |
| Kentucky | 28 days before the election. | 11/6/2012 | 10/9/2012 | 6/11/2012 | 8/10/2012 | (502) 573-7100 | State Board of Elections | Kentucky Form |
| Louisiana | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (225) 922-0900 | Elections Division | Louisiana Form |
| Maine | 10 business days before the election (or a voter may register in-person at the county or state clerk's office up to and including election day). | 11/6/2012 | 10/23/2012 | 6/25/2012 | 8/24/2012 | (207) 624-7650 | Elections Division | Maine Form |
| Maryland | 21 days before the election. | 11/6/2012 | 10/16/2012 | 6/18/2012 | 8/17/2012 | (410) 269-2840 | State Board of Elections | Maryland Form |
| Massachusetts | 20 days before the election. | 11/6/2012 | 10/17/2012 | 6/19/2012 | 8/18/2012 | (617) 727-2828 | Elections Division | Massachusetts Form |
| Michigan | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (513) 373-2540 | Bureau of Elections | Michigan Form |
| Minnesota | 20 days before the election (or a voter may register in-person on election day at polling place). | 11/6/2012 | 10/17/2012 | 6/19/2012 | 8/18/2012 | (651) 215-1440 | Election Division | Minnesota Form |
| Mississippi | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (601) 576-2550 | Elections Division | Mississippi Form |
| Missouri | the fourth Wednesday prior to the election. | 11/6/2012 | 10/10/2012 | 6/12/2012 | 8/11/2012 | (573) 751-2301 | Elections | Missouri Form |
| Montana | 30 days before the election (late registration extends to noon on the day before the election). | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (406) 444-4732 | Elections Bureau | Montana Form |
| Nebraska | the third Friday prior to the election (or a voter may register in-person at the county or state clerk's office up to and including the second Friday prior to the election). | 11/6/2012 | 10/19/2012 | 6/21/2012 | 8/20/2012 | (402) 471-2555 | Elections Division | Nebraska Form |
| Nevada | the fifth Saturday prior to the election (in-person registration at the county or state clerk's office begins on the fifth Sunday before the election and ends on the third Tuesday before the election). | 11/6/2012 | 10/6/2012 | 6/8/2012 | 8/7/2012 | (775) 684-5705 | Elections Division | Nevada Form |
| New Hampshire | 10 days before the election (or a voter may register in-person on election day at polling place). | 11/6/2012 | 10/27/2012 | 6/29/2012 | 8/28/2012 | (603) 271-3242 | Elections Division | New Hampshire Form |
| New Jersey | 21 days before the election. | 11/6/2012 | 10/16/2012 | 6/18/2012 | 8/17/2012 | (609) 292-3760 | Division of Elections | New Jersey Form |
| New Mexico | 28 days before the election. | 11/6/2012 | 10/9/2012 | 6/11/2012 | 8/10/2012 | (505) 827-3600 | Bureau of Elections | New Mexico Form |
| New York | 25 days before the election. | 11/6/2012 | 10/12/2012 | 6/14/2012 | 8/13/2012 | (518) 474-6220 | Board of Elections | New York Form |
| North Carolina | 25 days before the election. | 11/6/2012 | 10/12/2012 | 6/14/2012 | 8/13/2012 | (919) 733-7173 | State Board of Elections | North Carolina Form |
| North Dakota | Does not have voter registration. | 11/6/2012 | n/a | n/a | n/a | (701) 328-4146 | Elections Division | n/a |
| Ohio | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (887) 767-6446 | Elections | Ohio Form |
| Oklahoma | 25 days before the election. | 11/6/2012 | 10/12/2012 | 6/14/2012 | 8/13/2012 | (405) 521-2391 | Election Board | Oklahoma Form |
| Oregon | 21 days before the election. | 11/6/2012 | 10/16/2012 | 6/18/2012 | 8/17/2012 | (503) 986-1518 | Elections Division | Oregon Form |
| Pennsylvania | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (717) 787-5280 | Bureau of Elections | Pennsylvania Form |
| Rhode Island | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (401) 222-2345 | Board of Elections | Rhode Island Form |
| South Carolina | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (803) 734-9060 | State Elections Commission | South Carolina Form |
| South Dakota | 15 days before the election. | 11/6/2012 | 10/22/2012 | 6/24/2012 | 8/23/2012 | (605) 773-3537 | Elections | South Dakota Form |
| Tennessee | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (615) 741-7956 | Division of Elections | Tennessee Form |
| Texas | 30 days before the election. | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (512) 463-5650 | Elections Division | Texas Form |
| Utah | 30 days before the election (or a voter may register in-person at the county or state clerk's office 15 days before the election). | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (801) 538-1041 | Elections | Utah Form |
| Vermont | the Wednesday prior to the election. | 11/6/2012 | 10/31/2012 | 7/3/2012 | 9/1/2012 | (800) 439-8683 | Elections | Vermont Form |
| Virginia | 29 days before the election. | 11/6/2012 | 10/8/2012 | 6/10/2012 | 8/9/2012 | (804) 864-8901 | State Board of Elections | Virginia Form |
| Washington | 30 days before the election (or a voter may register in-person at the county or state clerk's office 15 days before the election). | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (360) 902-4180 | Elections | Washington Form |
| West Virginia | 21 days before the election. | 11/6/2012 | 10/16/2012 | 6/18/2012 | 8/17/2012 | (304) 558-6000 | State Election Commission | West Virginia Form |
| Wisconsin | 20 days before the election (or a voter may register in-person at the county or state clerk's office up to and including election day). | 11/6/2012 | 10/17/2012 | 6/19/2012 | 8/18/2012 | (608) 266-8005 | Elections Division | Wisconsin Form |
| Wyoming | 30 days before the election (or a voter may register in-person at the county or state clerk's office up to and including election day). | 11/6/2012 | 10/7/2012 | 6/9/2012 | 8/8/2012 | (307) 777-7186 | Election Administration | Wyoming Form |
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