School District · Idaho
Minidoka County Joint School District 331
📍 Heyburn, ID · Minidoka County · NCES LEAID 1602190
District Contact & InformationSource: NCES CCD 2024–25
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Grades Served
Pre-K – 12th
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District Mailing Address
310 10TH STREET, RUPERT, ID 83350
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NCES District ID (LEAID)
1602190
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District Type
Public School District
Zip Codes Served by Minidoka County Joint School District 3313 zip codes
Frequently Asked Questions
What zip codes are in Minidoka County Joint School District 331?▼
Minidoka County Joint School District 331 serves 3 zip codes: 83336, 83347, 83350. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is Minidoka County Joint School District 331 rated?▼
Minidoka County Joint School District 331 has an overall rating of 1 out of 10 (Poor), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 8th percentile among Idaho school districts. Ratings are percentile-ranked within Idaho only and are not comparable across states.
How many students attend Minidoka County Joint School District 331?▼
The NCES Common Core of Data directory reports enrollment of 4,405 students across 11 schools for Minidoka County Joint School District 331.
What grades does Minidoka County Joint School District 331 serve?▼
Minidoka County Joint School District 331 is listed in the NCES directory as serving grades Pre-K – 12th.
How do I contact Minidoka County Joint School District 331?▼
You can reach Minidoka County Joint School District 331 by phone at (208)436-4727 or by mail at 310 10TH STREET, RUPERT, ID 83350. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About Minidoka County Joint School District 331
Minidoka County Joint School District 331 is a public school district serving 3 zip codes in Idaho, primarily in Minidoka County. It carries an overall rating of 1/10 (Poor), the 8th percentile among Idaho districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other Idaho districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (208)436-4727 before making a housing decision.