Any idea of what the actual %age is?
It depends on what you are talking about for assistance, but for the broad based Medicare, Medicaid, and TANF programs Maine is in the middle of New England states (with Conn.)higher than southern states and lower than the NW and California and the upper midwest.
The LIHEAP program may skew the numbers a little when that is factored in as will social security and VA payments and military pensions. Maine has, I believe, the oldest population in the country.