The council consisted of a toral of 24 members. Eighteen elected members were elected for three years, and a further six aldermen, who were elected for a six year term by the council itself.
A third of the council was elected annually.
Mayor's chair in St Peter's Church, Carmarthen 1835 David Davies
1836 Capt John George Phillips
1837–1838 Thomas Morris
1839 William Phillips
1840 Charles Jones
1841 Thomas Taylor Webb
1842 William Morris
1843 Edmond Hills Stacey
1844 William Morris
1845 George Davies
1846 Thomas Charles Morris
1847 Samuel Tardrew
1848 William George Thomas
1849 John Lewis
1850–1851 Valentine Davies
1852–1853 William Morris
1854–1855 Lewis Morris
1856 Thomas Charles Morris
1857 John Lewis Phillips
1858 James Rowlands
1859 Henry Norton
1860–1861 John Thomas
1862–1863 Wm de Grunchy Warren
1864 Valentine Davies
1865 John Adams
1866 Robert Brodie
1867 E. D. Bowen Jones
1868 David Davies
1869–1870 John Lewis
1871 Henry Norton
1872 John Thomas
1873 Wm de Grunchy Warren
1874 David Lewis
1875 David M. Morgan
1876 David Bonnell Edwards
1877 Thomas Mostyn Davies
1878 Thomas Thomas
1879 Richard William Richards
1880 Charles William Jones
1881 John Morris
1882–1884 James Jenkyn Jones
1885 John Lewis
1886 Thomas Mostyn Davies
1887 William Richard Edwards
1888 Edward Alfred Rogers
1889 Howell Howells
1890 Thomas Davies
1891–1892 Thomas Jenkins
1893 James Davies
1894 Henry Cadle
1895–1898 Henry Brunel White
1899 John Lewis
1900 Walter Spurell
1901–1902 Edward Colby Evans
1903 Walter Spurell
1904–1905 Edward Alfred Rogers
1906 Henry Evan Blagdon Richards
1907 Joseph Nicholas Williams (16 November 1906)[ 2]
1908 John Lewis
1909 John Crossman
1910 Walter Lloyd
1911 William Thomas
1912–1913 John Beynon Arthur
1914–1917 John Lewis
1918–1919 Alderman William Evans
1920–1921 Andrew Fuller Mills
1922 Lewis David Thomas
1923 John Richards
1924 Andrew Fuller Mills
1925 John Hinds
1926 Andrew Fuller Mills
1927 Walter Spurell
1928–1929 David John Davies
1930–1932 William Jones
1933–1935 Thomas Lloyd
1936–1937 John Owen Morgans
1938–1941 James Islwyn Davies
1942–1944 Philip William Trefor Thomas
1945 John Russell
1945 Lewis Jones
1946–1947 John Jenkins
1948–1950 Enoch Davies
1950–1952 William David Jones
1952–1954 Charles Wright Griffiths
1954–1956 John James Lewis
1956–1958 Clifford Caron Jones
1958–1959 T. J. Thomas (Died in Office)
1959–1961 M. E. Clifford Jones
1961 (May to Sept) Mrs A. K. White (Died in Office)
1961–1963 T. Idwal Jones
1963–1964 Alderman Ellis J. Powell
1964–1965 Sidney Jeremy
1965–1966 D. D. Harries
1966–1967 William Wynford Francis Davies
1967–1968 Charles Wright Griffiths
1968 Leslie Hyde Howells
1969 David Jones Howells
1970 William Colvin
1971 Ronald Byles Evans
1972 Lawrence Victor Rice
1973 William Roy Nicholl 
