List of members of the United States Congress by longevity of service House and Senate time House and Senate time

| Total_tenure_rank | Uninterrupted_rank | Name_ | Party_affiliation | Total_tenure_time | Uninterrupted_time |
|---|---|---|---|---|---|
| 67 | 57 | Wilbur Mills (H) | Democratic Party | 38 years, 0 days | 38 years, 0 days |
| 68 | 58 | Dante Fascell (H) | Democratic Party | 38 years, 0 days | 38 years, 0 days |
| 69 | 59 | Robert H. Michel (H) | Republican Party | 38 years, 0 days | 38 years, 0 days |
| 70 | 999 | Robert Crosser (H,I) | Democratic Party | 37 years, 305 days | n/a |
| 71 | 999 | Robert L. F. Sikes (H,I) | Democratic Party | 37 years, 290 days | n/a |
| 72 | 60 | Nathaniel Macon (H,S) | Democratic-Republican Party | 37 years, 255 days | 37 years, 255 days |
| 73 | 61 | Henry Cabot Lodge (H,S) | Republican Party | 37 years, 250 days | 37 years, 250 days |