Enrollment
598
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Algonquin, IL
Conley Elementary School
Federal NCES profile for Conley Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 62/100.
2024-25 NCES dataElementary school (grades K-5)NCES 171983005734
👥 S:T ratio 44
🌟 Gifted program 70
📋 Attendance 72
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Conley Elementary School earns 62/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #1 of 4
- elementary schools in Algonquin · Resource Index
- 62
- Resource Index · Higher
- 13.9:1
- students per teacher
- 598
- students enrolled
Conley Elementary School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Conley Elementary School ranks #1 of 4 elementary schools in Algonquin, IL.
School address
District: Huntley Comm Sch Dist 158 · Illinois
NCES ID 171983005734 Verify on NCES CCD record →
Teachers (FTE)
43.0
Federal CCD staff survey
Students per teacher
13.9:1
vs 14:1 Illinois avg
-1% vs state
Student-teacher ratio in context
How Conley Elementary School compares with Illinois and U.S. medians
What stands out at Conley Elementary School
Conley Elementary School is a mid-sized elementary school in Algonquin, Illinois, enrolling 598 students.
At 13.9:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
Enrollment of 598 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 96% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (66%) and Hispanic or Latino (18%) (diversity index 52/100).
11.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Among Algonquin's elementary schools, it stands alongside Mackeben Elementary School (522 students): Conley Elementary School is larger than that campus by headcount and runs heavier classes (13.9:1 vs 13.1:1).
Huntley Comm Sch Dist 158 also operates Huntley High School (2,804 students) and Marlowe Middle School (1,215 students) alongside Conley Elementary School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Conley Elementary School compares
Conley Elementary School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.9:1 | ▼ 1% | 14:1 | 15.7:1 |
| Enrollment | 598 | top 21% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.9:1
Leaner classes than 58% of US schools, a middle-of-the-pack class size.
598
Bigger than 72% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.9:1
students per teacher
- 1% below state mean
Top 55% in Illinois - lower ratio than 45% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
11.2%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$16,048
per pupil, district-wide
- below Illinois avg of $17,042
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 66.2%
Hispanic or Latino 18.2%
Asian 11.4%
African American 2.3%
Native Hawaiian / Pacific Islander 1.0%
American Indian / Alaska Native 0.8%
Largest group: White at 66.2% of enrollment.
Student-body diversity index 51.5/100
Simpson diversity index - at 51.5, Conley Elementary School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Huntley Comm Sch Dist 158, which includes Conley Elementary School.
$16,048
Per student
-6%
vs Illinois
Avg $17,042
-3%
vs U.S.
Avg $16,593
Revenue mix
Local 55.0%
State 40.2%
Federal 4.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Conley Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Huntley High School | Larger | No free-lunch data | Higher S:T ratio |
| Marlowe Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Leggee Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Martin Elementary School | Larger | No free-lunch data | Similar S:T ratio |
| Heineman Middle School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Conley Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,804
- Students per teacher
- 15.6:1
- Resource Index
- 43/100
- Enrollment
- 1,215
- Students per teacher
- 13.7:1
- Resource Index
- 47/100
- Enrollment
- 877
- Students per teacher
- 13.5:1
- Resource Index
- 60/100
- Enrollment
- 776
- Students per teacher
- 14.1:1
- Resource Index
- 61/100
- Enrollment
- 724
- Students per teacher
- 12.7:1
- Resource Index
- 51/100
Similar elementary schools in Algonquin
3 comparable elementary schools (grades K-5) serving the same city.
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~598 students)
Similar student-teacher ratio (~13.9:1)
Next steps
Verify locally before acting on Conley Elementary School's federal record.
- Compare Conley Elementary School against another school. Compare schools
- Huntley Comm Sch Dist 158's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Conley Elementary School
How many students attend Conley Elementary School?
Conley Elementary School has 598 students enrolled. It is an elementary school in Algonquin, IL.
What is the student-teacher ratio at Conley Elementary School?
The student-teacher ratio at Conley Elementary School is 13.9:1, which is 1% lower than the Illinois average of 14:1 and 11% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Conley Elementary School?
The largest demographic group at Conley Elementary School is White at 66.2% of enrollment, in Algonquin, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 51.5/100.
What is the Resource Investment Index for Conley Elementary School?
Conley Elementary School has a Resource Investment Index of 62/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Conley Elementary School rank among elementary schools in Algonquin?
By Resource Investment Index, Conley Elementary School ranks #1 of 4 elementary schools in Algonquin, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Algonquin on the city page.
Is Conley Elementary School a good school?
Conley Elementary School earns 62/100 on the Resource Investment Index, with class sizes near the Illinois median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Huntley Comm Sch Dist 158?
Besides Conley Elementary School, Huntley Comm Sch Dist 158 also operates Huntley High School (2,804 students), Marlowe Middle School (1,215 students), and Leggee Elementary School (877 students). See the Huntley Comm Sch Dist 158 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.