| Election Name: | 1924 Republican Party presidential primaries |
| Country: | United States |
| Flag Year: | 1912 |
| Type: | primary |
| Ongoing: | no |
| Previous Election: | 1920 Republican Party presidential primaries |
| Previous Year: | 1920 |
| Next Election: | 1928 Republican Party presidential primaries |
| Next Year: | 1928 |
| Election Date: | March 12 to June 7, 1924 |
| Votes For Election: | 1,109 delegates to the 1924 Republican National Convention |
| Needed Votes: | 555 (majority) |
| Color1: | CE2029 |
| Candidate1: | Calvin Coolidge |
| Home State1: | Massachusetts |
| Delegate Count1: | 685 |
| States Carried1: | 15 |
| Popular Vote1: | 2,410,363 |
| Percentage1: | 68.4% |
| Color3: | 5d73e5 |
| Candidate3: | Hiram Johnson |
| Home State3: | California |
| Delegate Count3: | 14 |
| States Carried3: | 1 |
| Popular Vote3: | 1,007,833 |
| Percentage3: | 28.6% |
| Color2: | 668c63 |
| Candidate2: | Robert M. La Follette |
| Home State2: | Wisconsin |
| Delegate Count2: | 34 |
| States Carried2: | 1 |
| Popular Vote2: | 82,492 |
| Percentage2: | 2.3% |
| Map Size: | 350px |
| Republican nominee | |
| Before Election: | Warren G. Harding |
| After Election: | Calvin Coolidge |
From March 12 to June 7, 1924, voters of the Republican Party chose its nominee for president in the 1924 United States presidential election. Only 17 states held Republican primaries that year, with most states selecting Convention delegates through caucuses and state-level conventions. Delegates chose through the primary process (in those states that held primary elections) attended the 1924 Republican National Convention held from June 10 to June 12, 1924, in Cleveland, Ohio.[1]
| Date | Total pledged delegates | Contest | Delegates won and popular vote | |||
|---|---|---|---|---|---|---|
| Calvin Coolidge | Hiram Johnson | Robert M. La Follette | Other(s) Unpledged | |||
| February 12 | 26 (of 26) | Kentucky State Convention[2] | 26 Del. | - | - | - |
| 11 (of 11) | South Carolina State Convention[3] | 11 Del. | - | - | - | |
| February 21 | 2 (of 2) | Philippines Insular Convention[4] | 2 Del. | - | - | - |
| March 4 | 29 (of 29) | Iowa State Convention[5] | 29 Del. | - | - | - |
| March 8 | 27 (of 27) | Minnesota State Convention[6] | 27 Del. | - | - | - |
| March 11 | 15 (of 15) | Colorado State Convention[7] | 15 Del. | - | - | - |
| 0 (of 11) | New Hampshire Pres. Primary | 17,170 (100.00%) | - | - | - | |
| 11 (of 11) | New Hampshire Del. Primary[8] | 11 Del. 13,445 (?%) | - | - | 9,252 (?%) | |
| March 18 | 13 (of 13) | North Dakota Primary[9] | 7 Del. 52,815 (42.11%) | 32,363 (25.80%) | 6 Del. 40,252 (32.09%) | - |
| March 19 | 24 (of 24) | North Carolina State Convention[10] | 24 Del. | - | - | - |
| March 25 | 11 (of 11) | Idaho State Convention[11] | 11 Del. | - | - | - |
| 13 (of 13) | South Dakota Primary[12] [13] | 39,791 (49.29%) | 13 Del. 40,935 (50.71%) | - | - | |
| April 1 | 0 (of 29) | Wisconsin Pres. Primary[14] [15] | 23,324 (35.79%) | 411 (0.63%) | 40,738 (62.52%) | 688 (1.06%) |
| 29 (of 29) | Wisconsin Del. Primary[16] | 1 Del. 100,295 (?%) | - | 28 Del. 200,822 (?%) | - | |
| April 3 | 17 (of 17) | Connecticut State Convention[17] | - | - | - | 17 Del. |
| 15 (of 15) | Maine State Convention[18] | 15 Del. | - | - | - | |
| April 5 | 17 (of 17) | Washington State Convention | 17 Del. | - | - | - |
| April 7 | 33 (of 33) | Michigan Primary[19] | 33 Del. 236,191 (67.25%) | 103,739 (29.54%) | - | 11,312 (3.22%) |
| April 8 | 2 (of 2) | Hawaii Territorial Convention[20] | - | - | - | 2 Del. |
| 0 (of 61) | Illinois Pres. Primary | 533,193 (58.01%) | 385,590 (41.95%) | 278 (0.03%) | 21 (0.00%) | |
| 61 (of 61) | Illinois Del. Primary[21] [22] - | 24 Del. 119,999 (?%) | 1 Del. 120,118 (?%) | - | 36 Del. 230,517 (?%) | |
| 19 (of 19) | Nebraska Primary | 19 Del. 79,676 (63.57%) | 45,032 (35.93%) | - | 627 (0.50%) | |
| April 16 | 91 (of 91) | New York State Convention[23] | - | - | - | 91 Del. |
| April 17 | 10 (of 10) | Florida State Convention[24] | 10 Del. | - | - | - |
| April 22 | 79 (of 79) | Pennsylvania Primary | 79 Del. 117,262 (87.93%) | 4,345 (3.26%) | 1,224 (0.92%) | 10,523 (7.89%) |
| 31 (of 31) | New Jersey Primary | 31 Del. 117,262 (89.12%) | 13,626 (10.87%) | - | 10 (0.01%) | |
| April 23 | 25 (of 25) | Oklahoma State Convention[25] | 25 Del. | - | - | - |
| April 28 | 9 (of 9) | Arizona State Convention[26] | 9 Del. | - | - | - |
| April 29 | 39 (of 39) | Massachusetts Primary | 39 Del. 84,840 (100.00%) | - | - | - |
| 0 (of 51) | Ohio Pres. Primary | 173,613 (86.27%) | 27,578 (13.70%) | - | - | |
| 51 (of 51) | Ohio Del. Primary[27] | 51 Del. 146,524 (?%) | 32,198 (?%) | - | - | |
| May 5 | 19 (of 19) | Maryland Primary | 19 Del. 19,657 (93.67%) | 3 (0.01%) | - | 1,326 (6.32%) |
| May 6 | 29 (of 29) | California Primary | 29 Del. 311,826 (54.29%) | 262,499 (45.71%) | - | - |
| 33 (of 33) | Indiana Primary | 33 Del. 330,045 (84.06%) | 62,603 (15.94%) | - | - | |
| May 10 | 9 (of 9) | Nevada State Convention[28] | 9 Del. | - | - | - |
| May 13 | 9 (of 9) | Wyoming State Convention[29] | 9 Del. | - | - | - |
| May 16 | 13 (of 13) | Oregon Primary | 13 Del. 99,187 (76.75%) | 30,042 (23.25%) | - | - |
| May 27 | 23 (of 23) | Texas State Convention[30] | 23 Del. | - | - | - |
| 19 (of 19) | West Virginia Primary | 19 Del. 162,042 (100.00%) | - | - | - | |
| May 28 | 11 (of 11) | Montana Primary | 11 Del. 19,200 (100.00%) | - | - | - |
| Total 875 pledged delegates | 685 | 14 | 34 | 146 | ||