School Details

Rimrock Elementary School

4855 Brennan Bend, Ammon, ID 83406
(208) 525-4400

(out of 10)

Public Grades K-6 406 students 25 students/teacher (ID avg is 18)

Test Scores by grade


Idaho Standards Achievement Test (ISAT)

Until 2012-2013, Idaho used the Idaho Standards Achievement Test (ISAT) to test students in grades 3 through 10 in reading, math, and language usage, and in grades 5, 7, and 10 in science. In 2013-2014, Idaho field-tested a new ISAT, and only reported testing for grades 5, 7, and 10 science, and grade 10 reading, language use, and mathematics. Data was also heavily suppressed to protect individual students from being identified. Students may also take the ISAT in grades 11 or 12 if they were not able to do so in grade 10. The scores from the spring administration are displayed on GreatSchools profiles. The grade 10 ISAT is a high school graduation requirement. The ISAT is a standards-based test, which means it measures how well students are mastering the specific skills defined for each grade by the state of Idaho. The goal is for all students to score at or above the proficient level.
  • This school in 2014
  • Bonneville Joint District average
  • Idaho state average

% scale represents number of student who met or exceeded standards

About this school

Rimrock Elementary School is a public middle school in Ammon. 406 students attend Rimrock Elementary School and identify primarily as White, non-Hispanic; Hispanic; and Multiracial. 16% of the 406 students here get reduced lunch prices. The student to teacher ratio at Rimrock Elementary School is 25:1. Taylors Crossing Charter School is one of the nearest middle schools.

Extracurricular activities


  • Computer arts

Languages Taught

  • Spanish

Student Ethnicities

Ethnicity School District
White, non-Hispanic 91% 84%
Hispanic 5% 13%
Multiracial 3% 2%
Native Hawaiian or Other Pacific Islander 0.7% 0%
Asian 0.5% %
Asian/Pacific Islander 0.2% 1%
Black, non-Hispanic 0% 1%
Native American or Native Alaskan 0% 0%

Student Subgroups

Subgroup School District
Students eligible for free or reduced-price lunch program 16% 43%

Community ratings & reviews

  • (1 year ago)

    My daughter had an excellent experience for the six years she attended Rimrock. Leadership from the Principal is solid. He knows the children by name makes time to get to know who they are and what they need. The teachers are true professionals who worked overtime for our daughter who needed more challenging material in math science language and history. When she left Rimrock she and many of her classmates were highly advanced in all subjects. There is strong parental support at this school with volunteers in the classroom and in the PTO. And a special note should be made of the lunch room where they warmly greet each child every day. The building and grounds are kept clean and in good repair partly because of the attitude in the school towards respect and responsibility. The facility is nice and well planned out. Also the library is the best elementary library my children have ever had and they make it available one day a week during the summer! I have experience five other elementary schools with my other children and this school was not only the best- it was outstanding!

  • (3 years ago)

    This school is incredible! The teachers really care about their students and seem to work hours on end to make their classrooms the best they can possibly be. I have nothing but great things to say about the principal and all of his staff.

  • (5 years ago)

    We moved from another state with low expectations of the quality of education in Idaho but it is even worse than we thought. The teachers are disorganized their feedback is incomplete and they're not in tune with student's needs. The culture exudes a lack of discipline. The AR reading program is counterproductive and administered poorly. My three kids are not being stimulated making snowflakes last week in the gifted program! Snowflakes really? My kids learned MS Office 2007 - Word Excel and Powerpoint in the state we lived in but here even in 6th grade there is no exposure to MS Office or anything like it. My kids go to school one hour less than before but have much more homework. I'm very disappointed that the children are getting so shortchanged. Other schools in the area don't appear any better. We are giving our kids supplemental work at home to compensate.

  • (6 years ago)

    A great school is defined by its teaching staff its administration its facility and its kids. Amazingly enough Rimrock Elem. excells in all of these areas. The teachers we have had have been truly brilliant and caring. The principal knows almost every child by name!!!! It's a brand new school with high ceilings and large classrooms. I have been SO impressed with this wonderful school!

See all reviews on GreatSchools

Overall score

(based on 4 ratings & reviews)

  • Teacher quality
  • Principal leadership
  • Parent involvement


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