Standard&Poor's Ratings Services assigned its 'AA+' long-term rating to Lake County Consolidated High School District No. 120 (Mundelein), Ill.'s series 2015 general obligation (GO) limited tax school bonds. At the same time, Standard&Poor's affirmed its 'AA+' long-term rating and underlying rating (SPUR) on the district's existing GO bonds and its 'AA' long-term rating and SPUR on the district's existing GO debt certificates. The outlook on all ratings is stable. The ratings reflect our assessment of the district's: Participation in the Chicago metropolitan statistical area's (MSA) deep and diverse economy; Very strong incomes and per capita market value; Very strong reserves in the general fund (combined educational and operations&maintenance (O&M) funds), bolstered by larger cash