This report from the Kaiser Family Foundation provides an overview of eligibilty across all states in order to determine how this might change with the expansion of Medicaid in 2014.

From the report:

One of the primary goals of health reform is to provide individuals access to affordable coverage through a new continuum of coverage that provides assistance to individuals with family incomes up to 400% of the federal poverty level (FPL). Under reform, Medicaid will serve as the base of coverage for the low-income population and will be expanded to a national eligibility floor of 133% FPL in 2014. This expansion in Medicaid will provide a new coverage option for millions of currently uninsured adults, particularly adults without dependent children, who account for the bulk of the uninsured. Today there is significant variation across groups and states in their Medicaid and CHIP eligibility levels. As such the Medicaid expansion will have differential impacts across groups and states. Following is an overview of Medicaid, CHIP, and state-funded coverage eligibility levels for non-disabled children and adults today and how this coverage will be impacted by reform.

Full Report: Where are States Today? Medicaid and CHIP Eligibility Levels for Children and Non‐Disabled Adults 

Kaiser Family Foundation. (2011). Where are states today? Medicaid and CHIP eligibility levels for children and non-disabled adults.