| TIME PERIOD | REGIMENT | ORGANIZED | OXFORD MEN | NOTES |
| April-May 1861 | 1 CVI | 4/23/1861 | 0 | 3 months reg't |
| 2 CVI | 5/7/1861 | 0 | 3 months reg't | |
| 3 CVI | 5/14/1861 | 0 | 3 months reg't | |
| 1 CVHA | 5/22/1861 | 6 | 4 CVI, renamed 1 CVHA, 3 year reg't | |
| July-December 1861 | 5 CVI | 7/23/1861 | 1 | 3 year reg't; vet. vols. |
| 1 sq. CVC | 8/13/1861 | 0 | Cos. C & D of 2NYC; "Harris Light Cavalry" | |
| 6 CVI | 9/13/1861 | 4 | 3 year reg't; vet. vols | |
| 7 CVI | 9/17/1861 | 5 | 3 year reg't; vet. vols. | |
| 10 CVI | 9/30/1861 | 5 | 3 year reg't; vet. vols. | |
| 8 CVI | 10/5/1861 | 0 | 3 year reg't; vet. vols. | |
| 1 CVC | 10/26/1861 | 2 | 3 year reg't | |
| 1 CVLA | 10/26/1861 | 0 | ||
| 9 CVI | 11/1/1861 | 0 | 3 year reg't; CT's "Irish" reg't; vet. vols. | |
| 11 CVI | 11/27/1861 | 10 | 3 year reg't; vet. vols. | |
| 12 CVI | 12/31/1862 | 1 | 3 year reg't; "The Charter Oak Regiment;" vet. vols. | |
| February-September 1862 | 13 CVI | 2/18/1862 | 10 | 3 year reg't; 13th Battalion from January 1865; vet. vols. |
| 18 CVI | 8/22/1862 | 0 | 3 year reg't | |
| 14 CVI | 8/23/1862 | 3 | 3 year reg't | |
| 16 CVI | 8/24/1862 | 0 | 3 year reg't | |
| 15 CVI | 8/25/1862 | 6 | 3 year reg't | |
| 17 CVI | 8/28/1862 | 0 | 3 year reg't | |
| 21 CVI | 9/5/1862 | 0 | 3 year reg't | |
| 20 CVI | 9/8/1862 | 29 | 3 year reg't; vet. vols. | |
| 2 CVLA | 9/10/1862 | 0 | 3 year reg't; combination of 2 state militia batteries | |
| 2 CVHA | 9/11/1862 | 8 | 19 CVI; renamed 2 CVHA; "Litchfield County regiment" | |
| September-November 1862 | 22 CVI | 9/20/1862 | 0 | 9 months reg't; technically Connecticut militia |
| 27 CVI | 10/22/1862 | 0 | 9 months reg't; technically Connecticut militia | |
| 26 CVI | 11/10/1862 | 0 | 9 months reg't; technically Connecticut militia | |
| 25 CVI | 11/11/1862 | 0 | 9 months reg't; technically Connecticut militia | |
| 23 CVI | 11/14/1862 | 1 | 9 months reg't; technically Connecticut militia | |
| 28 CVI | 11/15/1862 | 0 | 9 months reg't; technically Connecticut militia | |
| 24 CVI | 11/18/1862 | 0 | 9 months reg't; technically Connecticut militia | |
| May-September 1864 | 29 CVCI | 3/8/1864 | 2 | colored regiment |
| 30 CVCI | 3/1864 | 0 | colored regiment; became 31 Reg't USCI | |
| 3 CVLA | 9/1864 | 13 |