Connecticut elected its members April 29, 1829 after the term began but before Congress convened.
| District | Incumbent | This race | ||||||
|---|---|---|---|---|---|---|---|---|
| Member | Party | First elected | Results | Candidates | ||||
| David Plant | Anti-Jacksonian | 1827 | Incumbent lost re-election. New member elected. Anti-Jacksonian hold. | nowrap rowspan=6 | ||||
| Elisha Phelps | Anti-Jacksonian | 1818 1820 1825 | Incumbent lost re-election. New member elected. Anti-Jacksonian hold. | |||||
| Ralph I. Ingersoll | Anti-Jacksonian | 1825 | Inucmbent re-elected. | |||||
| Orange Merwin | Anti-Jacksonian | 1825 | Incumbent lost re-election. New member elected. Anti-Jacksonian hold. | |||||
| Noyes Barber | Anti-Jacksonian | 1821 | Inucmbent re-elected. | |||||
| John Baldwin | Anti-Jacksonian | 1825 | Incumbent retired. New member elected. Anti-Jacksonian hold. | |||||