Delaware County Sheriffs – 1789 to Present
| 1789-1792 | Nicholas Fairlamb |
| 1792-1795 | James Barnard |
| 1795-1798 | Abraham Dicks (Two Terms) |
| 1798-1801 | John Odenheimer |
| 1801-1804 | Matthias Kerlin, Jr. |
| 1804-1807 | John Odenheimer |
| 1807-1810 | Richard P. Lloyd |
| 1810-1813 | Isaac Cochrane |
| 1813-1816 | Daniel Thompson |
| 1816-1819 | Robert Fairlamb |
| 1819-1822 | Samuel Anderson |
| 1822-1825 | Joseph Weaver |
| 1825-1828 | John Hinkson |
| 1828-1831 | Jehu Broomhall |
| 1831- | William Baldwin (Died In Office) |
| 1831-1834 | Charles Baldwin (Appointed) |
| 1834-1837 | Samuel A. Price |
| 1837-1840 | Evans S. Way |
| 1840-1843 | John Larkin, Jr. |
| 1843-1846 | Samuel A. Price |
| 1846-1849 | Robert R. Dutton |
| 1849- | Jonathan Esrey (Died In Office) |
| 1849-1851 | Henry F. Esrey (Appointed) |
| 1851-1854 | Aaron Jomes |
| 1854-1857 | John M. Hall |
| 1857-1860 | Jonathan Vernon |
| 1860-1864 | Norris L. Yarnall |
| 1864-1867 | A. VanZant |
| 1875-1878 | J. Webster |
| 1878-1880 | C. W. Mathews |
| 1880-1882 | J.J. Rowland |
| 1882-1885 | Wm. Armstrong |
| 1885-1889 | W.F. Mathews |
| 1889-1894 | G. L. Green |
| 1894-1896 | E. T. Carr |
| 1896-1898 | J. H. Marshall |
| 1898-1899 | D. B. McClure |
| 1899-1902 | Ed Obvir |
| 1902-1910 | Wm. E. Howard |
| 1910-1914 | S. E. Sproul |
| 1914-1918 | J. E. Heyburn |
| 1918-1922 | Albert Granger |
| 1922-1925 | Wesley Allison |
| 1925-1926 | Ellis Abrams |
| 1926-1930 | Issac Johns |
| 1930-1934 | John J. Cain |
| 1934-1938 | Nathan Pechin |
| 1938-1942 | Raymond Munson |
| 1942-1946 | William W. McKim |
| 1946-1950 | Robert Watkins |
| 1950-1955 | Robert J. McBride |
| 1955-1958 | Frank A. Snear |
| 1958-1966 | W. Aldrich Price |
| 1966-1974 | Paul J. McKinney (Two Terms) |
| 1974-1986 | John W. Taylor (Three Terms) |
| 1986-1988 | Joseph F. Battle (Appointed Judge) |
| 1988-1991 | George W. Hill (Appointed-Elected) |
| 1991-1998 | Ann A. Osborne (Appointed-Elected) |
| 1998-2003 | Chad F. Kenney (Appointed-Elected) |
| 2003-2013 | Joseph F. McGinn (Term Limited) |
| 2013-2014 | Joseph C. Blackburn, Jr., Interim |
| 2014-2018 | Mary McFall Hopper |
| 2018 - Present | Jerry L. Sanders, Jr. |