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SCHOOL COMMUNITY·CUSD 308·NCES 173027003129

Boulder Hill Elem School

163 Boulder Hill Pass, Montgomery, IL 60538 · (630) 636-2900 · Kendall County
GRADES KG–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL476 STUDENTS
Enrollment
476
Elementary
DISTRICT 529 · STATE 381
Student : Teacher
10.8:1
44 FTE teachers
DISTRICT 14.5:1 · STATE 13.9:1
Free / Reduced Lunch
59%
280 students
DISTRICT 31% · STATE 56%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
1
Kindergarten
73
Grade 1
81
Grade 2
81
Grade 3
75
Grade 4
94
Grade 5
71
Student demographics
White
25%
DISTRICT 46% · STATE 45%
Hispanic
57%
DISTRICT 27% · STATE 29%
Black
11%
DISTRICT 11% · STATE 16%
Asian
1%
DISTRICT 10% · STATE 6%
Two+
5%
DISTRICT 5% · STATE 5%
Native American
n/r
Pacific Islander
n/r
n/r: not reliably reported by NCES for this school. Hispanic, Pacific Islander, and Native American enrollment are systematically under-reported in the source data.
Gender split
Male
55%
Female
45%

Discussions

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
37.6%
IL avg 51.0% . +13.6pp since 2023
Math
25.3%
IL avg 37.9% . +6.7pp since 2023
Source: IAR + ISA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
31.3%
composite math + reading, all grades
Predicted
37.5%
based on IL schools with similar FRL share
Beats by
-6.2pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
476
-90 (-16%) vs 2017
Student : Teacher
10.8:1
was 14.8:1
% White
25%
was 35%
% Hispanic
57%
was 52%
% Black
11%
was 7%
% Asian
1%
was 1%
Source: NCES Common Core of Data

About Boulder Hill Elem School

Set in Montgomery, Illinois, Boulder Hill Elem School is a mid-tier elementary campus, overseen by CUSD 308. It hosts 476 students across grades K through 5. Enrollment runs roughly 25% larger than the state mean of about 381.

Across the 21 schools in CUSD 308 (16,766 students total), Boulder Hill Elem School accounts for its share of the district's footprint.

Demographically, Boulder Hill Elem School records that 57% of the student body identifies as Hispanic; the rest looks like 25% White, 11% Black, 5% multiracial. By comparison, Kendall County as a whole is about 22% Hispanic, so the school skews considerably more Hispanic than its surroundings.

On the resource side, On paper, Boulder Hill Elem School has 44 full-time-equivalent teachers, translating to a class-load average of around 10.8:1. That figure is tighter than the state norm's 13.9:1 average. An estimated 59% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. By comparison, Kendall County runs at roughly 32%, so the school's eligibility rate is above the surrounding baseline.

After controlling for student poverty, Boulder Hill Elem School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 37.5%; this one delivers 31.3%.

In the surrounding community, community-level numbers for Kendall County indicate median household income runs about $111,601, roughly 37% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. Boulder Hill Elem School is one of 50 public schools in Kendall County (combined enrollment of about 29,773 students).

Nearest neighbor: Old Post Elementary School, around 0.5 miles off. Counting just inside five miles, 8 other public schools cluster around Boulder Hill Elem School. Among the 9 schools in that immediate cluster with test data (this one included), Boulder Hill Elem School ranks 6th on composite proficiency, below the local average of 39.0%.

The campus sits in an outer-ring setting.

Trend over the last 7 years. Over the past 7-year window, the student count edged down 16%: 566 students in 2018 compared to 476 in 2025. White enrollment moved from 35% to 25% across the same window. Class-load math has pulled in: from 14.8:1 in 2018 to 10.8:1 in 2025.

On allk12, members of the Boulder Hill Elem School community share and discuss school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

Kendall County at a glance

View full county profile
Population
137,675
Census ACS
Median income
$111,601
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
50
29,773 students

Quick facts

School name
Boulder Hill Elem School
District
CUSD 308
Address
163 Boulder Hill Pass, Montgomery, IL 60538
Phone
(630) 636-2900
County
Kendall County
Level
Elementary
Grade range
KG–05
Total enrollment
476
Teachers (FTE)
44
Student–teacher ratio
10.8:1
Free/Reduced lunch
280 (59%)
Locale
21-Suburb: Large
NCES ID
173027003129
Charter school
No
Virtual school
No

Related schools

Other schools in CUSD 308
Other schools in Montgomery
Nearby schools

Frequently asked questions

About Boulder Hill Elem School
How many students attend Boulder Hill Elem School?
Boulder Hill Elem School enrolls approximately 476 students in grades KG-05.
What grades does Boulder Hill Elem School serve?
Boulder Hill Elem School serves grades KG-05.
What is the student-teacher ratio at Boulder Hill Elem School?
The student-to-teacher ratio at Boulder Hill Elem School is approximately 10.8:1 (44 FTE teachers).
How diverse is Boulder Hill Elem School?
Boulder Hill Elem School reports a student body of 25% White, 57% Hispanic, 11% Black, 1% Asian, 5% Two or more.
What district is Boulder Hill Elem School in?
Boulder Hill Elem School is part of CUSD 308.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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