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For the 2025-26 school year, there are 5 public high schools serving 1,796 students in Sioux County, IA.

The top ranked public high schools in Sioux County, IA are Moc-floyd Valley High School, Boyden-hull High School and Sioux Center High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.

Sioux County, IA public high schools have an average math proficiency score of 73% (versus the Iowa public high school average of 65%), and reading proficiency score of 72% (versus the 71% statewide average). High schools in Sioux County have an average ranking of 7/10, which is in the top 50% of Iowa public high schools.

Sioux County, IA public high school have a Graduation Rate of 87%, which is equal to the Iowa average of 87%.

The school with highest graduation rate is Rock Valley High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in Iowa or national school graduation rate statistics.

Minority enrollment is 38% of the student body (majority Hispanic), which is more than the Iowa public high school average of 27% (majority Hispanic).