Connecticut's 25th Senate district
The Twenty-Fifth Senate District of Connecticut elects one member of the Connecticut Senate. The district consists of all of Norwalk and part of Darien. Its current Senator is Democrat Bob Duff.
List of representatives
Prior to 1905, the area in the 25th district was represented by the 12th District.| Senator | Party | Years | District home | Note |
| Stiles Judson | Republican | 1905–1909 | Stratford | Served as President Pro Tempore of the Senate |
| Daniel Brinsmade | Republican | 1909–1911 | Shelton | |
| Stiles Judson | Republican | 1911–1913 | Stratford | |
| John Hoyt Perry | Republican | 1913–1915 | Southport | |
| Frederick M. Salmon | Republican | 1915–1919 | Westport | |
| John B. Dillon | Republican | 1919–1921 | Shelton | |
| Elmore Banks | Republican | 1921–1923 | Fairfield | |
| Charles E. Wheeler | Republican | 1927–1929 | Stratford | |
| Albert E. Lavery | Republican | 1929–1933 | Fairfield | Served as President Pro Tempore |
| ... | ||||
| Charles E. Wheeler | Republican | 1939–1940 | Stratford | |
| ... | ||||
| William E. Sheehy | Republican | 1945–1947 | Shelton | |
| ... | ||||
| Jacob Rudolf | Republican | 1967–1973 | Norwalk | |
| William J. Lyons, Jr. | Republican | 1973–1975 | Norwalk | |
| Louis Ciccarello | Democratic | 1975–1977 | Norwalk | |
| Alfred Santaniello, Jr. | Republican | 1977–1983 | Norwalk | ran for judge |
| Andrew J. Santaniello, Jr. | Republican | 1983–1986 | Norwalk | died in office, causing a special election |
| Joseph Santo | Republican | 1986–1987 | Norwalk | lost to Atkin in general election in November |
| John Atkin | Democratic | 1987–1991 | Norwalk | |
| Robert Genuario | Republican | 1991–2005 | Norwalk | |
| Bob Duff | Democratic | 2005–present | Norwalk |