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For the 2025-26 school year, there is 1 public preschool serving 38 students in Petroleum County, MT.

The top-ranked public preschool in Petroleum County, MT is Winnett School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Petroleum County, MT public preschool have an average math proficiency score of 69% (versus the Montana public pre school average of 42%), and reading proficiency score of 50% (versus the 47% statewide average). Pre schools in Petroleum County have an average ranking of 9/10, which is in the top 20% of Montana public pre schools.

Minority enrollment is 0% of the student body (majority Black and Hispanic), which is less than the Montana public preschool average of 23% (majority American Indian).