The following list is from Victor Silvestri’s excellent publication, Encyclopedia of Florida Sheriffs, which is available from the Walton County Heritage Museum Gift Shop. The two-volume set has biographies of every sheriff who served in Florida from 1821 until 2008.
Four Walton County Sheriffs died while in office: J. Murdock Bell (1909-1916), Daniel “Dorie” Clayton Adkison (1937-1938), Robert E. Gatlin (1941-1942), and Thomas Howard “Andy” Anderson (1961-1970). Names in parentheses in the table below are possible alternative names. Names in blue are linked to their biographies or obituaries.
| 1827-1830 | Michael Vaughan, Sr. |
| 1830-1832 | Alexander McKenzie |
| 1832-1834 | Daniel Campbell McLeod |
| 1834-1836 | Abraham (Abram) Bellamy |
| 1836-1840 | Daniel Campbell McLeod |
| 1840-1842 | Alexander Campbell |
| 1842-1844 | Giles Bowers |
| 1844-1846 | William W. McCallum |
| 1846-1847 | Enos Evans |
| 1847-1849 | Anthony Hartley Brownell |
| 1849-1853 | William W. McCollum (McCallum) |
| 1853-1855 | Alexander (Neil) C. Monroe |
| 1855-1857 | Alexander C. Monroe |
| 1858-1860 | John Lauchlin Campbell |
| 1861-1865 | William W. McCollum |
| 1865-1867 | John Lauchlin Campbell |
| 1868-1872 | Samuel Rutan |
| 1872 | Lafayette Calvin McDonald |
| 1872 | John Alexander McLeod |
| 1873-1877 | Neil McPherson Campbell |
| 1877-1878 | James H. Rice |
| 1878-1881 | William Bethune McLeod |
| 1881 | Joseph Malary |
| 1881 | John William Campbell |
| 1882 | Malcolm D. McLean |
| 1883-1889 | John C. McSween |
| 1889-1894 | John Alexander McLeod |
| 1894-1898 | Marvel Manning |
| 1898-1909 | John William Campbell |
| 1909-1916 | J. Murdock Bell |
| 1916-1917 | Jefferson Ballow (Ballou) Cawthon |
| 1917-1933 | Thaddeus “Thad” Bell, Sr. |
| 1933-1937 | Monroe H. Prescott |
| 1937-1938 | Daniel “Dorie” Clayton Adkison |
| 1938 | Celia Jernigan Adkinson (Mrs. D. C. Adkison) |
| 1939-1941 | Monroe H. Prescott |
| 1941-1942 | Robert E. Gatlin |
| 1942-1945 | Theron Aubrey McDonald |
| 1945-1953 | Curtis Ralph Miller |
| 1953-1957 | Theron Aubrey McDonald |
| 1957-1961 | Curtis Ralph Miller |
| 1961-1970 | Thomas Howard “Andy” Anderson |
| 1970 | Ethlyn McDuffie Anderson (Mrs. T. H. Anderson) |
| 1970-1977 | Lehman Shelby “Sam” Campbell |
| 1977-1980 | Jessie Aubrey Carter, Sr. |
| 1981-2000 | Quinn Arlen McMillan |
| 2001-2008 | Ralph L. Johnson |
| 2009-present | Michael A. Adkinson, Jr. |