Summary:
Zip code 66846 has two schools in Morris County, serving PK through grade 12: Council Grove Elementary School (318 students) and Council Grove Junior Senior High School (368 students). Their 2025–26 results vary by subject: the high school is above the state in math, while both schools are below the state in science. The most urgent concern is elementary science: fifth-grade proficiency was 10%, compared with 46% statewide, a 36-point gap.
The high school stands out in math, with 47% proficiency versus 32% at the elementary school and 41% statewide; its result is 6 points above the state. Elementary leads narrowly in ELA, at 44% versus 42% at the high school, though both are below the state’s 46%. Science shows the widest school-to-school difference: the high school reached 35%, while elementary recorded 10%, against a state result of 38%. For 2025–26, SchoolDigger gives the high school 4 stars and a 74th-percentile ranking (88th of 340), compared with 1 star and the 26th percentile for elementary (487th of 657). Because the schools serve different grade spans, their all-grades figures are not like-for-like comparisons.
Recent changes are mixed: both schools improved in ELA by about 2 points, but high-school math fell 4 points while elementary math rose 2. Science declined at both schools, especially elementary, which dropped 27 points; the high school fell 6. SchoolDigger’s percentile rankings also show different longer-term patterns: the high school went from the 86th percentile to the 70th, then recovered to the 74th, while elementary declined from the 34th to the 26th. The schools share an 11.7 student-teacher ratio; free or reduced-price lunch rates are 55% at elementary and 51% at the high school. The high school also reports a 96% graduation rate, compared with 90% statewide. These figures offer useful points of comparison, but they do not explain why results differ.
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