Ada County school enrollment

Organization

Idaho State Department of Education

Dataset

Public school enrollment by county (computed by Understand Idaho)

Geography

Idaho (statewide)

Time coverage

1995 to 2025; each measure's own span is in its description

Update frequency

Annual

Published

July 2026

Original file

https://www.sde.idaho.gov/wp-content/uploads/2025/12/Historical-Enrollment-by-District-or-Charter.xlsx

License

Public domain. State of Idaho government work.

Our copy

Public school enrollment by county (computed by Understand Idaho)

Caveats

• Computed by Understand Idaho from Historical Fall Enrollment and Common Core of Data, Local Education Agency Universe Directory and EDGE Geographic Update; it is not a figure the publisher releases.
• Membership counts enrollment as of the first day of October, or the nearest prior school day; a student enrolled in two LEAs is counted in each.
• Charter enrollment is already included in the statewide total. From 2018 on, the statewide total is the sum of every district and charter LEA's membership; for 1995 to 2017 SDE's own LEA rows differ from its printed state total, by up to 6,171 students (1996) and by under 400 from 2004 on.
• Two LEA blocks in SDE's workbook carry no name (The Village Charter School, 2011 to 2023; Upper Carmen Public Charter, 2015 to 2023); each is named by matching its figures to SDE's charter enrollment workbook.
• Period is the calendar year the school year begins in; period 2024 is school year 2024-25.
• No district-to-county crosswalk exists in SDE's workbooks, so only statewide totals are published here.
• Category is the LEA name as SDE prints it in each year, not normalized or merged across years even when an LEA was renamed.
• Charter totals for 2012-13 (18,781.5), 2013-14 (19,366.5) and 2014-15 (19,700.38) carry a fractional count, from a school counted at partial-year FTE; kept as printed.
• Period is the calendar year the school year begins in, matching the State Department of Education's own enrollment workbook (period 2024 is school year 2024-25).
• The EDGE geographic update exists only from school year 2015-16 through 2024-25; NCES has not yet published a 2025-26 edition.
• A district whose boundary crosses a county line is assigned to a single county by NCES's own geographic update, not divided between counties.
• One row, Pleasant Valley Elementary District for school year 2015-16, is kept exactly as NCES's file states it though it places the district in Malheur County, Oregon; NCES corrects this to Owyhee County, Idaho beginning school year 2016-17.
• A district's name as the State Department of Education's own workbook prints it is not always available for the same school year NCES lists the district; the department's workbook does not carry a comparable row for several state-run special-purpose LEAs (Department of Correction and Department of Juvenile Corrections education programs, the School for the Deaf and the Blind) in most years, and a newly opened charter LEA can appear in one publisher's file before the other's.