SAN FRANCISCO (S&P Global Ratings) June 27, 2019--S&P Global Ratings revised the outlook to positive from stable and affirmed its 'A+' underlying rating (SPUR) on Stanislaus Union School District, Calif.'s general obligation (GO) debt outstanding. At the same time, S&P Global Ratings assigned its 'A+' long-term rating to Stanislaus Union's series 2019 GO refunding bonds. The outlook is positive. The outlook revision reflects our belief that there is at least a one-in-three chance we will raise the rating during the two-year outlook period. The district's economic growth continues to improve exponentially, and consistent, conservative budgeting and enrollment growth have led to positive budgetary performance and strong reserves. "Over the next two years, should management continue to outperform budgetary expectations, alongside