Updated 16 JUN 2012
| Secession Date | Joined CSA | Independent | USA Used CSA | |
| South Carolina | 20 Dec 1860 | 4 Feb 1861 | 46 days | 117 days |
| Mississippi | 9 Jan 1861 | 4 Feb 1861 | 26 days | 117 days |
| Florida | 10 Jan 1861 | 4 Feb 1861 | 25 days | 117 days |
| Alabama | 11 Jan 1861 | 4 Feb 1861 | 24 days | 117 days |
| Georgia | 19 Jan 1861 | 4 Feb 1861 | 16 days | 117 days |
| Louisiana | 26 Jan 1861 | 4 Feb 1861 | 9 days | 117 days |
| Texas | 1 Feb 1861 (ordinance) 2 Mar 1861 (effective) | 5 Mar 1861 | 32 days 3 Days | 88 days |
| Virginia | 17 Apr 1861 | 7 May 1861 | 20 days | 25 days |
| Arkansas | 6 May 1861 | 18 May 1861 | 12 days | 14 days |
| North Carolina | 20 May 1861 | 27 May 1861 | 7 days | 5 Days |
| Tennessee | 8 Jun 1861 | 2 Jul 1861 | 24 days | None |
| Missouri | 28 Nov 1861 | None | None | |
| Kentucky | 9 Dec 1861 | None | None |