S&P Global Ratings assigned its'AA'long-term rating to Mahoning County , Ohio's approximately $25.1 million series 2026 building improvement sales tax bonds. At the same time, we affirmed our'AA'long-term rating on the county's outstanding bonds supported by sales tax revenues. The outlook is stable. A first-lien pledge of revenue from the 0.50% sales and use tax levied throughout Mahoning County secures the series 2026 bonds. In 2007, voters authorized the sales tax to provide additional general revenues for the county; it has no expiration date nor is it subject to repeal while any parity obligations are outstanding. We rate the series 2026 bonds under our criteria,"Priority-Lien Tax Revenue Debt ,"Oct. 22, 2018, which factors