| 1st Battalion, 31st Infantry ( formed from 1st Battle Group ) | Korea (7th Infantry Division) | | Jul 1963-Apr 1971 |
| Korea (2nd Infantry Division) | | Apr 1971-1987 |
| 2nd Battalion, 31st Infantry ( formed from 1st Battle Group | Korea (7th Infantry Division)
| | Jul 1963-Apr 1971 |
| Fort Ord, California (7th Infantry Division) | | Oct 1974 –Oct 1985 |
| 3rd Battalion, 31st Infantry (USAR—formed from 3rd Battle Group) | Playa Del Ray, California (63rd Infantry Division) | | Oct 1963-Dec 1965 |
| 4th Battalion, 31st Infantry | Fort Devens, Massachusetts (196th Light Infantry Brigade) | | |
| Vietnam (196th Light Infantry Brigade, 23rd Infantry Division) | | Aug 1966- Oct 1971 |
| Fort Sill, Oklahoma (Field Artillery School)
| | Jan 1972-Jul 1995 |
| Fort Drum, New York (10th Mountain Division) | | Apr 1996-Present, |
| including rotations to the following overseas tours: | | |
| | Bosnia (Battalion , less B Company) | Sep-Dec 1999 |
| | Bosnia (B Company) | Sep 1999-Mar 2000 |
| | Uzbekistan and Afghanistan (Battalion less B Company) | Sep 2001-Apr 2002 |
| | Qatar and Kuwait (B Company) | Sep 2001-Apr 2002 |
| | Afghanistan (A Company) | May-Dec 2003 |
| | Djibouti (C Company and Mortar Platoon) | May-Dec 2003 |
| | Iraq (B Company) | May 2003-Apr 2004 |
| | Iraq (Battalion) | Jun 2004-Jul 2005 |
| | Iraq (Battalion) | Aug 2006-Nov 2007 |
| | Iraq (Battalion) | Aug 2010-Aug 2011 |
| 5th Battalion, 31st Infantry (formed from 5th Battle Group) | Fort Rucker, Alabama (Aviation School) | | May 1964-Jun 1967 |
| Fort Benning, Georgia (197th Infantry Brigade) | | Jun 1967-Jul 1971 |
| 6th Battalion, 31st Infantry | Fort Lewis, Washington (Sixth Army) | | Nov 1967-Apr 1968 |
| Vietnam (9th Infantry Division) | | Apr 1968-Oct 1970 |
| Fort Ord, California (7th Infantry Division) | | Nov 1975-May 1981 |
| Fort Irwin, California (National Training Center) | | May 1981-Jan 1988 |
