Listed below are counties with the largest average student size (2025).
The county with largest average public school student size is Oneida County, ID with 1,451 students. The county with smallest average public school student size is Golden Valley County, MT with 23 students.
Student Size Range: 183
752
Avg. Student Size: 512
Largest ºÚÁÏÍø¹ÙÍø School Student Size By County (2025)
County
Average School Size
Largest Schools (# of Students)
Rank: #11.
1,451 students
Rank: #22.
1,264 students
Rank: #33.
1,251 students
Rank: #44.
1,125 students
Rank: #55.
1,113 students
Rank: #66.
1,107 students
Rank: #77.
1,104 students