County directory · Montana · 2026–27

School districts in Lake County, MT

Lake County has 12 regular public school districts, enrolling 4,166 students in 2024–25. The largest is Polson Elem (1,075 students, 26% of the county), followed by Ronan Elem and Polson H S. 8 of the 12 offer kindergarten. Montana's kindergarten cutoff: turn 5 by September 10.

The 12 districts, largest first

School districts in Lake County, MT by 2024–25 enrollment
District and officeGradesSchoolsStudentsKindergartenDistrict office contact
Polson Elem
111 4th Avenue East, Polson
Pre-K–831,07591
(406) 883-6355
Ronan Elem
421 Andrew Street NW, Ronan
Pre-K–841,03990
(406) 676-3390
Polson H S
111 4th Avenue East, Polson
9–121517—
(406) 883-6355
St Ignatius K-12 Schools
75 3rd Avenue, St Ignatius
Pre-K–12345926
(406) 745-3811
Ronan H S
421 Andrew Street NW, Ronan
9–122376—
(406) 676-3390
Arlee Elem
72220 Fyant Street, Arlee
also serves Missoula County and Sanders County
Pre-K–8226331
(406) 726-3216
Charlo Elem
404 1st Ave West, Charlo
Pre-K–8213717
(406) 644-2206
Arlee H S
72220 Fyant Street, Arlee
also serves Missoula County and Sanders County
9–121135—
(406) 726-3216
Charlo H S
404 1st Ave West, Charlo
also serves Sanders County
9–12180—
(406) 644-2206
Upper West Shore Elem
506 B Street, Dayton
Pre-K–61468
(406) 849-5240
Valley View Elem
42448 Valley View Road, Polson
Pre-K–61355
(406) 883-7262
Swan Lake-Salmon Elem
23187 Hwy 83, Swan Lake
Pre-K–8140
(406) 886-2374

Lake County at a glance

Together the 12 districts run 22 schools from offices in 7 towns. The smallest by enrollment is Swan Lake-Salmon Elem, with 4 students; the median Lake County district has 137. By grade span: 5 Pre-K–8, 4 9–12, 2 Pre-K–6 and 1 Pre-K–12. Without kindergarten: Polson H S (9–12), Ronan H S (9–12), Arlee H S (9–12) and Charlo H S (9–12).

Kindergarten in 2024–25, counting the 7 districts that report a K grade: 268 children. The biggest kindergarten was Polson Elem's, with 91; Ronan Elem had 90, and the smallest, Valley View Elem, had 5.

Lake County holds 12 of Montana's 389 regular districts (3.1%) and 2.8% of its 146,849 public school students, ranking 6th of 56 counties by number of districts and 9th by enrollment. By size, 2 enroll 1,000 to 4,999 and 10 have fewer than 1,000 students, and the average school here has about 189 students.

3 districts reach past the county line: Arlee Elem (into Missoula County and Sanders County), Arlee H S (into Missoula County and Sanders County) and Charlo H S (into Sanders County).

Which district am I in?

Each district draws its own attendance zones, so your home address decides it, and with 3 of Lake County's districts crossing county lines the county alone won't. There is no address lookup here; ask the district. Each one's own site:

Polson Elem · Ronan Elem · Polson H S · St Ignatius K-12 Schools · Ronan H S · Arlee Elem · Charlo Elem · Arlee H S · Charlo H S · Upper West Shore Elem · Valley View Elem · Swan Lake-Salmon Elem

What grade will my child be in?

↓ Tap Calculate to see the grade
Most US states use a September 1 cutoff. Year-stamped for the 2026–27 school year.

More in Montana

Every Montana district by county · Montana kindergarten cutoff

More Montana county directories: Blaine County (11) · Cascade County (12) · Fergus County (14) · Hill County (11) · Roosevelt County (12) · Yellowstone County (18)

Sources

District list, grades, school counts and websites: NCES Common Core of Data (CCD) LEA Universe Directory, SY 2025-26 (preliminary, v0a), published July 1, 2026. Regular public districts only (NCES LEA types 1 and 2); charter-only, state-run and regional service agencies are not listed.
Enrollment: NCES CCD LEA Membership, SY 2024-25 (v1a), published December 29, 2025 — the newest year NCES has released.
Counties: NCES EDGE Public LEA Geocodes, SY 2024-25 (district office location) and NCES EDGE Geographic Relationship Files 2025 (grf25_lea_county) (counties each district boundary covers).
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