March 17, 2020 Presidential Primary Election
NOVEMBER 25, 2019 FIRST DAY TO FILE PETITION
DECEMBER  2, 2019 LAST DAY TO FILE PETITION
DECEMBER 9, 2019 SIMULTANEOUS FILING LOTTERY, if necessary
DECEMBER 16, 2019 LAST DAY FOR FILING REFERENDUM PETITION WITH THE LOCAL ELECTION OFFICIAL
DECEMBER 30, 2019 LAST DAY FOR LOCAL GOVERNING BOARDS TO ADOPT A RESOLUTION OR ORDINANCE
JANUARY 9, 2020 LAST DAY FOR A REFERENDUM BALLOT CERTIFICATION BY THE LOCAL ELECTION OFFICIAL TO THE COUNTY CLERK
JANUARY 16, 2020 LAST DAY FOR WRITE-IN CANDIDATES TO FILE DECLARATION OF INTENT
FEBRUARY 6, 2020 FIRST DAY OF EARLY VOTING AT THE WILL COUNTY CLERK’S OFFICE
FEBRUARY 6, 2020 FIRST DAY TO MAIL REQUESTED VOTE BY MAIL BALLOTS
FEBRUARY 18, 2020 LAST DAY TO REGISTER TO VOTE IN PERSON OR BY MAIL
FEBRUARY 19, 2020 FIRST DAY FOR GRACE PERIOD REGISTRATION AND VOTING
MARCH 1, 2020 LAST DAY TO REGISTER TO VOTE ONLINE
MARCH 2, 2020 FIRST DAY OF EARLY VOTING AT TEMPORARY POLLING PLACES
MARCH 2, 2020 PUBLIC TEST OF VOTING EQUIPMENT
MARCH 12, 2020 LAST DAY TO REQUEST A VOTE BY MAIL BALLOT
MARCH 15, 2020 CENTRAL COUNT
MARCH 16, 2020 LAST DAY FOR EARLY VOTING 
MARCH 17, 2020 ELECTION DAY
MARCH 25, 2020 RETABULATION: VERIFYING ELECTION DAY RESULTS
MARCH 31, 2020 PROVISIONAL COUNT
APRIL 7, 2020 ELECTION RESULTS BECOME OFFICIAL