The following table indicates the party of elected officials in the U.S. state of Connecticut: Governor Lieutenant Governor Secretary of the State Attorney General State Treasurer State Comptroller

The table also indicates the historical party composition in the: State Senate State House of Representatives State delegation to the U.S. Senate State delegation to the U.S. House of Representatives

For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.

1639–1775

YearExecutive officesGovernor of theConnecticut ColonyGovernor of theNew Haven ColonyDeputy Governor of theConnecticut ColonySecretary of StateTreasurer1639John HaynesTheophilus EatonRoger LudlowEdward HopkinsThomas Welles1640Edward HopkinsJohn Haynes1641John HaynesGeorge WyllysThomas WellesWilliam Whiting1642George WyllysRoger Ludlow1643John HaynesEdward Hopkins1644Edward HopkinsJohn Haynes1645John HaynesEdward Hopkins1646Edward HopkinsJohn Haynes1647John HaynesEdward Hopkins1648Edward HopkinsRoger LudlowJohn CullickThomas Welles1649John HaynesEdward Hopkins1650Edward HopkinsJohn Haynes1651John HaynesEdward Hopkins1652Edward HopkinsJohn HaynesJohn Talcott Sr.1653John HaynesEdward Hopkins1654Edward HopkinsThomas Welles1655Thomas WellesJohn Webster1656John WebsterThomas Welles1657John Winthrop the Younger1658Thomas WellesFrancis NewmanJohn Winthrop the YoungerDaniel Clark1659John Winthrop the Younger1660John MasonJohn Talcott Jr.1661–1663William Leete1664John Allyn1665Daniel Clark1666John Winthrop the Younger1667–1668John Allyn1669–1675William Leete1676–1678William LeeteRobert TreatWilliam Pitkin1679–1682Joseph Whiting1683–1686Robert TreatJames Bishop1687–1688Robert TreatEdmund Andros1689–1691Robert Treat1692–1695William Jones1696–1697Eleazer Kimberly1698–1707Fitz-John WinthropRobert Treat1708Gurdon SaltonstallNathan Gold1709William WhitingCaleb Stanly1710–17111712Richard LordHezekiah Wyllys1713–17171718–1723John Whiting1724Joseph TalcottJoseph Talcott1725–1734Jonathan Law1735–1740George Wyllys1741–1749Jonathan LawRoger Wolcott1750–1753Roger WolcottThomas FitchNathaniel Stanly1754–1755Thomas FitchWilliam Pitkin1756–1765Joseph Talcott1766–1768William PitkinJonathan Trumbull1769–1775Jonathan TrumbullMatthew GriswoldJohn Lawrence

1776–1898

YearExecutive officesGeneral AssemblyUnited States CongressElectoralvotesGovernorLt. GovernorSecretary of StateTreasurerComptrollerState SenateState HouseU.S. Senator(Class I)U.S. Senator(Class III)U.S.House1776Jonathan Trumbull Matthew Griswold George WyllysJohn Lawrence...17831784Matthew Griswold Samuel Huntington 17851786Samuel Huntington Oliver Wolcott 178717881789Jedediah HuntingtonF majorityF majorityOliver Ellsworth William S. Johnson 5PAWashington/Adams 1790Peter Colt17911792Roger Sherman Washington/Adams 17937PA1794Andrew Kingsbury Stephen Mix Mitchell 1795Oliver Ellsworth Jonathan Trumbull Jr. 7F1796Oliver Wolcott Jonathan Trumbull Jr. Samuel Wyllys James Hillhouse Uriah Tracy Adams /T. Pinckney 1797Jonathan Trumbull Jr. John Treadwell 17981799180012FF majorityAdams/C. C. Pinckney 162F, 27DR1801153F, 36DR149F, 40DR1802136F, 55DR125F, 60DR1803145F, 48DR130F, 63DR1804117F, 78DRC. C. Pinckney/King 132F, 63DR1805127F, 68DR134F, 61DR1806Elisha Colt123F, 72DR136F, 61DR1807131F, 63DR, 3 vac.121F, 76DR, 1 vac.1808136F, 61DR, 1 vac.Chauncey Goodrich C. C. Pinckney/King 144F, 54DR, 1 vac.1809156F, 43DRJohn Treadwell Roger Griswold 148F, 50DR, 1 vac.1810Thomas Day 143F, 56DRSamuel W. Dana 134F, 65DR1811Roger Griswold John Cotton Smith 139F, 60DR1812147F, 52DRJohn Cotton Smith vacant161F, 38DRClinton/Ingersoll 1813Chauncey Goodrich 163F, 37DR1814F majorityDavid Daggett 139F, 61DR1815140F, 60DR143F, 60DR1816Jonathan Ingersoll 116F, 90TRKing/Howard 111F, 90TR1817Oliver Wolcott Jr. 105TR, 96F128TR, 73F1818Isaac Spencer 7TR, 5F129TR, 72F6F, 1DR115TR, 86F1819James Thomas12TR119TR, 82FJames Lanman 5DR, 2F1820129TR, 73FMonroe/Tompkins 1821TR majorityElijah Boardman 7DR1822TR majority1823David Plant TR majority6DR1824NR majorityHenry W. Edwards Adams/Calhoun 1825NR majorityNR majorityHenry W. Edwards Calvin Willey 6NR1826NR majorityNR majority1827Gideon Tomlinson John Samuel Peters NR majorityNR majoritySamuel A. Foot 1828Gideon Tomlinson NR majorityNR majorityAdams/Rush 1829NR majorityNR majority1830Elisha Phelps NR majorityJ majority1831NR majorityNR majorityJohn Samuel Peters vacantGideon Tomlinson 1832NR majorityNR majorityClay/Sergeant 1833Henry W. Edwards Ebenezer Stoddard 17J, 4NR129J, 35NR, , 14?Nathan Smith 1834Samuel A. Foot Thaddeus Betts Roger Huntington 16NR, 5J82NR, 80J, , 9I1835Henry W. Edwards Ebenezer Stoddard Royal R. Hinman Jeremiah Brown Gideon Welles 16D, 5W126D, 80W6J, 1D1836William Field 17D, 4W130D, 71WJohn Milton Niles Van Buren/Johnson 183714D, 7W110D, 79WJohn Milton Niles Perry Smith 6D1838William W. Ellsworth Charles Hawley Hiram Ryder Henry Kilbourn 20W, 1D158W, 42D, 6Cons183913W, 8D107W, 87D, 2ConsThaddeus Betts 6W184018W, 3D143W, 63D, 8?Harrison/Tyler 184120W, 1D116W, 57D, 41 vac.Jabez W. Huntington 1842Chauncey F. Cleveland William S. Holabird Noah A. Phelps Jabez L. White Jr. Gideon Welles 14D, 7W124D, 55W184316D, 5W113D, 75WJohn Milton Niles 4D1844Roger Sherman Baldwin Reuben Booth Daniel P. Tyler Joseph B. Gilbert Abijah Carrington 16W, 5D112W, 77DClay/Frelinghuysen 184516W, 5D112W, 77D, 1Lty4W1846Isaac Toucey Noyes Billings Charles W. Bradley Alonzo W. Birge Mason Cleveland 11D, 10W116D, 103W, 1Lty1847Clark Bissell Charles J. McCurdy John Brownlee Robertson Joseph B. Gilbert Abijah Catlin 13W, 8D119W, 100D, 1I1848117W, 102D, 1LtyRoger ShermanBaldwin Taylor/Fillmore 1849Joseph Trumbull Thomas Backus Roger H. Mills Henry D. Smith 11D, 6W, 4FS108W, 95D, 19FSTruman Smith 2D, 1W, 1FS1850Thomas H. Seymour Charles H. Pond Hiram Weed Rufus G. Pinney 12D, 6W, 3FS111D, 97W, 14FSJohn P. C. Mather 1851Green Kendrick Thomas Clark 12W, 8D, 1FS110D, 107W, 5FS, 2IIsaac Toucey 3D, 1W1852Charles H. Pond Edwin Stearns 14D, 6W, 1FS130D, 85W, 7FS, 3IPierce/King 185315D, 6W144D, 77W, 4FS, 2 vac.Francis Gillette 4DCharles H. Pond vacant1854Henry Dutton Alexander H. Holley Oliver H. Perry Daniel Camp John Dunham 16W, 5D119W, 89D, 10FS, 1I1855William T. Minor William Field Nehemiah D. Sperry Arthur B. Calef Alexander Merrell 16KN, 4D, 1W163KN, 65DLafayette S. Foster 4KN1856Albert Day Frederick P. Coe Edward Prentis 13O, 8D127O, 105DFrémont/Dayton 1857Alexander H. Holley Alfred A. Burnham Orville H. Platt Frederick S. Wildman Joseph G. Lamb 15R, 6D139R, 93DJames Dixon 2D, 2R1858William A. Buckingham Julius Catlin John Boyd Lucius J. Hendee William H. Buell 146R, 88D185913R, 8D125R, 109D4R186014R, 7D147R, 88DLincoln/Hamlin 1861Benjamin Douglas James HammondTrumbull Ezra Dean Leman W. Cutler 13R, 8D149R, 86DLafayette S. Foster 2D, 2R1862Roger Averill Gabriel W. Coit 21R187R, 57D186314R, 7D139R, 96D, 1I, 1?3R, 1D1864William A. Buckingham Roger Averill Gabriel W. Coit 18R, 3D155R, 79DLincoln/Johnson 186521R158R, 77D4R1866Joseph R. Hawley Oliver Winchester Leverett E. Pease Henry G. Taintor Robbins Battell 13R, 8D141R, 94D1867James E. English Ephraim H. Hyde Edward S. Moseley Jesse Olney 11R, 10D127R, 111DOrris S. Ferry 2D, 2R186812R, 9D129R, 109DGrant/Colfax 1869Marshall Jewell Francis Wayland Hiram Appleman David P. Nichols James W. Manning 14R, 7D132R, 106DWilliam A. Buckingham 3R, 1D1870James E. English Julius Hotchkiss Thomas M. Waller Charles M. Pond Seth S. Logan 11R, 10D127R, 109D, 3I1871Marshall Jewell Morris Tyler Hiram Appleman David P. Nichols James W. Manning 13R, 8D129R, 110D187215R, 6D130R, 111DGrant/Wilson 1873Charles Roberts Ingersoll George G. Sill D. W. Edgecomb William E. Raymond Alfred R. Goodrich 14R, 7D132D, 108R, 1IOrris S. Ferry Marvin H. Sanger 187417D, 4R143R, 99DOrris S. Ferry 187515D, 6R137D, 107R, 1IWilliam W. Eaton James E. English 3D, 1R187618D, 3R161D, 85RTilden/Hendricks 1877Richard D. Hubbard Francis Loomis Dwight Morris Edwin A. Buck Charles C. Hubbard 11R, 10D141R, 105DWilliam Barnum 187813R, 8D137R, 109D1879Charles B. Andrews David Gallup David Torrance Talmadge Baker Chauncey Howard 14R, 7D143R, 99D, 1GB, 1I, 2 vac.Orville H. Platt 3R, 1D188016R, 5D162R, 83D, 1GBGarfield/Arthur 1881Hobart B. Bigelow William H. Bulkeley Charles E. Searls David P. Nichols Wheelock Batcheller 166R, 80D, 1GB, 1IJoseph R. Hawley 1882James D. Smith 17R, 7D160R, 89D1883Thomas M. Waller George G. Summer D. Ward Northrop Alfred R. Goodrich Frank D. Sloat 13R, 11D139R, 110D3D, 1R188415R, 9D153R, 96DCleveland/Hendricks 1885Henry Baldwin Harrison Lorrin A. Cooke Charles Addison Russell V. B. Chamberlain Luzerne I. Munson 17R, 7D148R, 100D, 1GB2D, 2R188613R, 11D131R, 116D, 2I1887Phineas C. Lounsbury James L. Howard Leverett M. Hubbard Alexander Warner Thomas Clark 14R, 10D137R, 109D, 2I, 1vac.3D, 1R1888Cleveland/Thurman 1889Morgan BulkeleySamuel E. Merwin R. Jay Walsh E. Stevens Henry John B. Wright 17R, 7D152R, 96D, 1I3R, 1D18901891Nicholas Staub 17D, 7R133R, 116D, 1I, 1vac.3D, 1R1892Cleveland/Stevenson 1893Luzon B. Morris Ernest Cady John J. Phelan Marvin H. Sanger 12R, 12D137R, 113D, 1Proh18941895Owen Vincent Coffin Lorrin A. Cooke William C. Mowry George W. Hodge Benjamin P. Mead 23R, 1D204R, 46D, 1Pop4R1896McKinley/Hobart 1897Lorrin A. Cooke James D. Dewell Charles Phelps Charles W. Grosvenor 24R218R, 29D, 5NatD1898

1899–present