This Presidential Primary coincides with a state/local primary. These coinciding primaries tend to have an impact upon voter turnout.

Participation in Mississippi's delegate selection process is open to all voters who wish to participate as Republicans. There is no partisan voter registration in Mississippi.

Tuesday 12 March 2024: Mississippi Primary. Hours 7:00a-7:00p CDT (1200-0000 UTC). Delegate Selection: Winner-Take-Most Primary. Voter Eligibility: Open Primary.

Primary
Included in Nationwide vote.
Estimate updated 15 March 2024 01:15p EDT with about 98% of the vote in.

All 40 of Mississippi's delegates to the Republican National Convention are allocated to presidential contenders in today's Mississippi Presidential Primary.

• 12 district delegates are bound to presidential contenders based on the primary results in each of the 4 congressional districts: each congressional district is assigned 3 National Convention delegates. [Rule 3]
• If one candidate receives a majority (more than 50%) of the vote in a Congressional District, that candidate is allocated all 3 delegates.
• Otherwise, the candidate receiving the most votes receives 2 delegates and the candidate receiving the second most votes receives 1 delegate.
• 28 at-large delegates (10 base at-large delegates plus 15 bonus delegates plus 3 RNC delegates) are bound to presidential contenders based on the statewide primary vote. [Rule 4]
• If one candidate receives a majority (more than 50%) of the statewide vote, that candidate is allocated all 28 at-large delegates.
• Otherwise, each presidential candidate receiving 20% or more of the statewide vote is proportionally allocated delegates based on their percentage of the vote total of all candidates who met the 20% threshold. Round to the nearest whole number. If no candidate receives 20% of the vote, the threshold is 15%. The process does not describe what to do if too many or too few delegates are allocated due to rounding.

Primary
Estimate updated 15 March 2024 01:15p EDT with about 98% of the vote in.

CD1: winner-take-all (3 delegates) for Trump.
CD2: winner-take-all (3 delegates) for Trump.
CD3: winner-take-all (3 delegates) for Trump.
CD4: winner-take-all (3 delegates) for Trump.
Statewide: winner-take-all for Trump.

National Convention delegates are bound for the until released by their candidate. [Rules 8 and 9]

In addition, 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the Mississippi's Republican Party, will attend the convention as pledged delegates by virtue of their position. [Rule 5]

Circa April 2024 (date not set): Precinct Caucuses / County Presidential Conventions.

Friday 10 May - Saturday 11 May 2024: State Convention. The District and At-Large delegates are elected according to the results of the primary.