- The deadlines for registering to vote vary by state, and can be notoriously hard to track down.
- Each US state and territory has its own dates and rules for registering to vote in person, online, and by mail, for both the primaries and the general election.
- This chart lists all the dates for registering before the primary elections for 2020. Links for more info on each state’s primary dates are available below.
- Visit Business Insider’s homepage for more stories.
The 2020 US primary elections are upon us. If you aren’t registered, you can’t vote.
Typically, the three ways you can register are online, by mail, or in person. A few states also let you register on the day as long as you have the right documentation. But most make you do it ahead of time.
Here are the last days Americans can register to vote in every state and US territory:
Alabama
Alabama's primary election will be on March 3, 2020. Voters must register in person by February 14, or by mail or online by February 17.
For more information visit Alabama's Secretary of State.
Alaska
Alaska's primary election will be on April 4, 2020. Voters must register by mail, online, or in person, by March 5.
For more information visit Alaska's Division of Elections.
American Samoa
American Samoa's primary election will be on March 3, 2020. Voters must register in person or by mail by February 3.
For more information visit American Samoa's Election office.
Arizona
Arizona's primary election will be on March 17, 2020. Voters must register by mail, online, or in person by February 18.
For more information visit Arizona's Secretary of State.
Arkansas
Arkansas' primary election will be on March 3, 2020. Voters must register in person or by mail by February 4.
For more information visit Arkansas' Secretary of State.
California
California's primary election will be on March 3, 2020. Voters can register the day-of in person, or by mail or online by February 17.
For more information visit California's Secretary of State.
Colorado
Colorado's primary election will be on March 3, 2020. Voters must register by mail or online by February 24. Voters can also register in person up to and on the day of the election.
For more information visit Colorado's Secretary of State.
Connecticut
Connecticut's primary election will be on April 28, 2020. Voters must register by mail or online by April 23, or in person until noon on April 27.
For more information visit Connecticut's Secretary of State.
District of Columbia
District of Columbia's primary election will be on June 2, 2020. Voters must register by mail or online by May 12. You can also register in person up to and on Election Day.
For more information visit District of Columbia's Board of Elections.
Delaware
Delaware's primary election will be on April 28, 2020. Voters must register by mail, online, or in person by April 4.
For more information visit the State of Delaware.
Democrats Abroad
The primary election for Democrats living overseas is on March 3, 2020. Each state sends out a ballot at least 45 days before the election and voters must register by the deadline for the state they last lived in.
For more information visit Democrats Abroad.
Florida
Florida's primary election will be on March 17, 2020. Voters must register by mail, online, or in person by February 18.
For more information visit the State of Florida.
Georgia
Georgia's primary election will be on March 24, 2020. Voters must register by mail, online, or in person by February 24.
For more information visit Georgia's Secretary of State.
Guam
Guam's primary election will be on May 2, 2020. Voters must register by mail or in person by April 22.
For more information visit Guam's Election Commission.
Hawaii
Hawaii's general election will be on April 4, 2020. Voters must register by mail, online, or in person by March 5.
For more information visit the State of Hawaii.
Idaho
Idaho's primary election will be on March 10, 2020. Voters must register by mail by February 14, or online by February 28. You can also register in person on Election Day.
For more information visit Idaho's Secretary of State.
Illinois
Illinois' primary election will be on March 17, 2020. Voters must register by mail by February 18, online by February 29, or in person up to and on Election Day.
For more information visit Illinois' Board of Elections.
Indiana
Indiana's primary election will be on May 5, 2020. Voters must register by mail, online, or in person by April 6.
For more information visit Indiana's Secretary of State.
Iowa
Iowa's primary election will be on February 3, 2020. Voters must register by mail by January 19, online by January 24, or in person on the day of the vote.
For more information visit Iowa's Secretary of State.
Kansas
Kansas' primary election will be on May 2, 2020. Voters must register by mail by April 25, or in person up to and on Election Day. They can also register online by April 11.
For more information visit Kansas' Secretary of State.
Kentucky
Kentucky's primary election will be on May 19, 2020. Voters must register by mail, online, or in person, by April 20.
For more information visit Kentucky's Board of Elections.
Louisiana
Louisiana's primary election will be on April 4, 2020. Voters must register by mail or in person by March 4, and online by March 14.
For more information visit Louisiana's Secretary of State.
Maine
Maine's primary election will be on March 3, 2020. Voters must register by mail by February 11, or in person up to and on the day of the election.
For more information visit Maine's Secretary of State.
Maryland
Maryland's primary election will be on April 28, 2020. Voters must register by mail or online by April 7, or in person on election day with proof of address.
For more information visit Maryland's Board of Elections.
Massachusetts
Massachusetts' primary election will be on March 3, 2020. Voters must register by February 12 by mail, in person, or online.
For more information visit Massachusetts' Secretary of State.
Michigan
Michigan's primary election will be on March 10, 2020. Voters must register by mail or in person by February 24. But they can register in person up to and on the day of the election. Online registration is not available.
For more information visit Michigan's Secretary of State.
Minnesota
Minnesota's primary election will be on March 3, 2020. Voters must register February 11 by mail or online. Voters can also register in person up to and on the day of the election.
For more information visit Minnesota's Secretary of State.
Mississippi
Mississippi's general election will be on March 10, 2020. Voters must register in-person or by mail by February 8. Online registration is not available.
For more information visit Mississippi's Secretary of State.
Missouri
Missouri's primary election will be on March 10, 2020. Voters must register by mail, online, or in person by February 12.
For more information visit Missouri's Secretary of State.
Montana
Montana's primary election will be on June 2, 2020. Voters must register by mail by May 7, or in person up to and on Election Day.
For more information visit Montana's Secretary of State.
Nebraska
Nebraska's primary election will be on May 12, 2020. Voters must register by mail or online by April 24, in person in state agencies by April 24, and in person in election office by May 1.
For more information visit Nebraska's Secretary of State.
Nevada
Nevada's primary election will be on February 22, 2020. Voters must register by mail by January 29, online by February 3, or in person up to and on Election Day.
For more information visit Nevada's Secretary of State.
New Hampshire
New Hampshire's primary election will be on February 11, 2020. Voters must register by mail by February 4, or in person on the day of the election. Online registration is not available.
For more information visit New Hampshire's Secretary of State.
New Jersey
New Jersey's primary election will be on June 2, 2020. Voters must register by mail or in person by May 12.
For more information visit the State of New Jersey.
New Mexico
New Mexico's primary election will be on June 2, 2020. Voters must register by mail, online, or in person by May 5.
For more information visit New Mexico's Secretary of State.
New York
New York's primary election will be on April 28, 2020. Voters must register by mail, online, or in person by April 3.
For more information visit the State of New York.
North Carolina
North Carolina's primary election will be on March 3, 2020. Voters must register by mail by February 7. You can also register in person during the early voting period, but you can't register on Election Day.
For more information visit North Carolina's State Board of Elections.
North Dakota
North Dakota's primary election will be on March 10, 2020. It's the only state in the US that does not require voter registration. Voters can turn up on the day with their ID and proof of address.
For more information visit North Dakota's Secretary of State.
Northern Marianas
Northern Marianas' primary election will be on March 14, 2020. Voters must register by mail or in person by January 14.
For more information visit the Commonwealth Election Commission.
Ohio
Ohio's primary election will be on March 17, 2020. Voters must register by mail, online, or in person by February 17.
For more information visit Ohio's Secretary of State.
Oklahoma
Oklahoma's primary election will be on March 3, 2020. Voters must register by February 7 in person or by mail.
For more information visit Oklahoma's State Election Board.
Oregon
Oregon's primary election will be on May 19, 2020. Voters must register by mail, online, or in person, by April 28.
For more information visit Oregon's Secretary of State.
Pennsylvania
Pennsylvania's primary election will be on April 28, 2020. Voters must register by mail, online, or in person by March 30.
For more information visit the State of Pennsylvania.
Puerto Rico
Puerto Rico's primary election will be on March 29, 2020. Voters must register by mail or in person by February 8.
For more information visit Puerto Rico's Election Commission.
Rhode Island
Rhode Island's primary election will be on April 28, 2020. Voters must register by mail, online, or in person by March 29.
For more information visit Rhode Island's Board of Elections.
South Carolina
South Carolina's primary election will be on February 29, 2020. Voters must register by mail, online, or in person by January 30.
For more information visit South Carolina's Election Commission.
South Dakota
South Dakota's primary election will be on June 2, 2020. Voters must register by mail or in person by May 18. Voters cannot register online.
For more information visit South Dakota's Secretary of State.
Tennessee
Tennessee's primary election will be on March 3, 2020. Voters must register by mail, in person, or online by February 3.
For more information visit Tennessee's Secretary of State.
Texas
Texas' primary election will be on March 3, 2020. Voters must register by mail or in person by February 3.
For more information visit Texas' Secretary of State.
Utah
Utah's primary election will be on March 3, 2020. Voters must register online by February 25 or by mail February 2. You can also vote up to and on the day of the election in person.
For more information visit the state of Utah.
Vermont
Vermont's primary election will be on March 3, 2020. Mailed-in ballots must be received by Election Day, and you can register online or in person on Election Day.
For more information visit Vermont's secretary of state.
Virgin Islands
The US Virgin Islands' primary election will be on June 6, 2020. Voters must register by mail or in person by May 7.
For more information visit Virgin Island's Election System.
Virginia
Virginia's primary election will be on March 3, 2020. Voters must register online, by mail, or in person, by February 10.
For more information visit Virginia's Department of Elections.
Washington
Washington's primary election will be on March 10, 2020. Voters must register by mail or online by March 2, or in person by 8 p.m. on Election Day.
For more information visit Washington's Secretary of State.
West Virginia
West Virginia's primary election will be on May 12, 2020. Voters must register online, by mail, or in person by April 21.
For more information visit West Virginia's secretary of state.
Wisconsin
Wisconsin's primary election will be April 7, 2020. Voters must register by mail or online by March 18, or in person on Election Day.
For more information visit Wisconsin's Elections Commission.
Wyoming
Wyoming's primary election will be on April 4, 2020. Voters must register by mail by March 20, or in-person on Election Day.
For more information visit Wyoming's Secretary of State.
