In this brief, we provide comparisons between cumulative enrollment totals in Health Insurance Marketplaces in metropolitan and non-metropolitan areas of each state and corresponding percentages of "potential market" participants enrolled, controlling for Medicaid expansion status. We show that in several states, non-metropolitan enrollment rates exceed metropolitan enrollment rates, a finding that is obscured in an aggregate comparison. This analysis provides some indication of how well outreach and enrollment efforts targeting rural populations are proceeding in the states.