Cook County SD 171, Ill., Raised to AA-Minus by S&P

Standard & Poor's Ratings Services said it raised its rating on Cook County School District No. 171 (Sunnybrook), Ill.'s general obligation bonds to AA-minus from A-plus.

The outlook is stable.

"The upgrade is due to a substantial improvement in cash reserves," said Standard & Poor's credit analyst John Kenward.

The rating reflects the district's: participation in the deep and diverse Chicago metropolitan area economy; very strong income level; and very strong cash reserves.

The district serves an estimated population of 11,015 in Lansing and is located 25 miles south of downtown Chicago.

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