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Boise County

Idaho · Public K-12

Public K-12 schools in Boise County number 7 per the most recent NCES data, averaging about 99 students per campus. By grade band, the county runs 3 elementary and 3 high schools.

7-year change in Boise County

SY 2017-18 vs SY 2024-25
Total enrollment
690
-157 (-19%) vs SY 2017-18
School count
6
0 (0%) vs SY 2017-18
% White
90%
was 91%
% Hispanic
5%
was 5%
% Black
0%
was 1%
% Asian
1%
was 1%
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Residents
8,273
all ages · ACS 5-yr
Schools
7
3 districts
Enrollment
690
students · NCES CCD
Median income
$78,774
Above Idaho avg
Free/reduced lunch
47.0%
Above Idaho avg
Elementary
3
258 students
Middle
0
schools
High
3
212 students
Combined / other
1
220 students
LARGEST DISTRICT
BASIN SCHOOL DISTRICT
299 students · 3 districts in Boise County

County vs. school enrollment demographics

Left bar is the racial makeup of Boise County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".

County residents
White
85%
Hispanic
5%
Black
0%
Asian
2%
Two or more
9%
Native American
1%
Pacific Islander
0%
School enrollment
White
90%
Hispanic
5%
Black
0%
Asian
1%
Two or more
2%
Native American
0%
Pacific Islander
1%
Bachelor's+
31.2%
adults 25+
Poverty rate
4.3%
ACS 5-year
Unemployment
3.4%
civilian labor
Median age
53
15.4% under 18

Test scores in Boise County

Latest 2024-25 ELA proficiency, 4 schools ranked. Idaho state average: 53.7%.

See all 4 schools in Boise County ranked by score →

All schools (7)

LargestA-ZTop rated
NameCityLevelGradesEnrollmentRating
GARDEN VALLEY SCHOOLGarden ValleyCombinedPK-12220·
BASIN ELEMENTARY SCHOOLIdaho CityElementaryPK-06173·
IDAHO CITY HIGH SCHOOLIdaho CityHigh07-12126·
HORSESHOE BEND MIDDLE/SR HIGHHorseshoe BendHigh06-1286·
HORSESHOE BEND ELEMENTARYHorseshoe BendElementaryPK-0584·
LOWMAN ELEMENTARY SCHOOLLowmanElementaryPK-061·
HORSESHOE BEND ALTERNATIVE SCHOOLHorseshoe BendHigh05-120·

Cities in Boise County

Horseshoe Bend3 schoolsIdaho City2 schoolsGarden Valley1 schoolLowman1 school

About Boise County

Boise County is a compact Idaho county of about 8,273 residents, home to 7 public schools and roughly 690 students.

Looking at the wider area, census numbers show median household income runs near $78,774, 31% of adults hold a bachelor's degree or higher, and the poverty rate is around 4%. That income level is 14% above the Idaho median.

Looking at the level breakdown, Boise County consists of 3 elementary schools (258 students), 3 high schools (212), and 1 combined or other schools.

The largest single district in Boise County is BASIN SCHOOL DISTRICT, which alone enrolls about 299 students.

Trend over the past 7 years. Combined enrollment now sits at 690 students, decreased 19% from the 847 reported in SY 2017-18.

On allk12, the community for Boise County discusses sports rivalries, cross-district programs, and shared facilities. Anyone with firsthand knowledge of these schools is welcome to weigh in.

Frequently asked questions

How many K-12 schools serve Boise County?
There are 7 public K-12 schools in Boise County, Idaho, with a combined enrollment of about 690.
How many high schools are in Boise County?
Boise County, Idaho has 3 public high schools, serving approximately 212 students.
How many elementary schools are in Boise County?
Boise County, Idaho has 3 public elementary schools, serving approximately 258 students.
What is the largest school district in Boise County?
BASIN SCHOOL DISTRICT is the largest school district in Boise County, serving approximately 299 students. The county contains 3 school districts overall.
What is the population of Boise County?
Boise County, Idaho has a population of approximately 8,273, with a median age of 53. About 15.4% of residents are under 18.
What is the median household income in Boise County?
Median household income in Boise County is $78,774, above the Idaho average of $69,041. About 4.3% of residents live below the federal poverty line.
How educated are residents of Boise County?
Approximately 31.2% of adults 25 and older in Boise County hold a bachelor's degree or higher, according to the Census ACS 5-year estimate.
What share of students in Boise County qualify for free or reduced lunch?
Roughly 47.0% of students in Boise County public schools qualify for free or reduced-price lunch, a common proxy for low-income enrollment. This is higher than the Idaho county average of 46.6%.
What is the student-teacher ratio in Boise County schools?
Across Boise County public schools, the enrollment-weighted student-teacher ratio is approximately 12.1 to 1.
What is the racial makeup of Boise County?
Boise County residents are approximately 85% White, 5% Hispanic, 0% Black, 2% Asian, 9% two or more races according to the Census ACS 5-year estimate.
DATA · Census ACS 5-year · NCES Common Core of Data