SSDI (Social Security Disability Income) is based on your earnings and you would not get it unless you had five years productive employment - and it will increase in accordance to how long you work and how much you earn during that time. This is fixed according to federal guidelines - it will not change if you move from state to state.
SSI (Social Security Income) is based on the cost-of-living rate in the state you currently resides - and it will flucate according to the COF rate in each state. So, if you were to move to Missouri from California, it would go down at least $25.00, because the COF rate is lower in Missouri than it is in California.
