2024-25 NCES data Elementary school (grades K-5) NCES 171983005734

Conley Elementary School — Algonquin, IL

Federal NCES profile for Conley Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 64/100.

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0/100100/10064/100
👥 Class size
49
🌟 Gifted program
70
📋 Attendance
72
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →

The verdict

Conley Elementary School earns a C+ Resource Investment Index (64/100), with class sizes near the Illinois median.

C+
Resource Index · 64/100
12.7:1
students per teacher
598
students enrolled

School address

Algonquin, IL 60102
District: Huntley Comm Sch Dist 158 · Illinois

Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.

Enrollment

598

Illinois · 2024-25 NCES data

Teachers (FTE)

43.0

Federal CCD staff survey

Students per teacher

12.7:1

vs 14.6:1 Illinois avg

-13% vs state

Student-teacher ratio in context

How Conley Elementary School compares with Illinois and U.S. medians

At or below state median
0:135:112.7:1

Source: NCES Common Core of Data As of 2024-25 federal staff survey Total enrollment ÷ full-time-equivalent classroom teachers

The federal record — no proprietary index, no editorial formula. PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.

What this school's NCES data tells you

Conley Elementary School reports 598 enrolled students to the National Center for Education Statistics (NCES) alongside 43.0 full-time-equivalent teachers, producing a 12.7:1 student-teacher ratio. That figure sits 13% below the Illinois state mean of 14.6:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.7:1, it is 19% lower, a useful calibration for families comparing districts across state lines.

Chronic absenteeism — missing 10% or more of school days — stands at 11.2% according to the 2021-22 Civil Rights Data Collection.

On the finance side, the surrounding Huntley Comm Sch Dist 158 spends $16,048 per pupil district-wide, below the Illinois average of $17,042 and below the national average of $16,593. Revenue comes 55.0% from local sources (property taxes), 40.2% from the state, and 4.8% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 64/100 (C+), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.

Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25

How Conley Elementary School compares

Cross-validating school-level NCES values against Illinois state and U.S. national means lets readers see whether this school is an outlier or in line with peers.

Metric This school vs Illinois Illinois avg U.S. avg
Students per teacher 12.7:1 ▼ 13% 14.6:1 15.7:1
Enrollment 598 top 79% — —

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

Class size vs. every US school

Students per teacher (lower means more individual attention)

13 Among the smallest classes smaller classes than 72% of 92,598 US schools

0–2: 295 US schools (0%). Below this entry. 2–4: 597 US schools (1%). Below this entry. 4–6: 1,033 US schools (1%). Below this entry. 6–8: 1,939 US schools (2%). Below this entry. 8–10: 4,805 US schools (5%). Below this entry. 10–12: 11,082 US schools (12%). Below this entry. 12–14: 16,971 US schools (18%). This entry sits in this band. 14–16: 18,959 US schools (20%). Above this entry. 16–18: 13,660 US schools (15%). Above this entry. 18–20: 8,300 US schools (9%). Above this entry. 20–22: 5,448 US schools (6%). Above this entry. 22–24: 4,007 US schools (4%). Above this entry. 24–26: 2,663 US schools (3%). Above this entry. 26–28: 1,131 US schools (1%). Above this entry. 28–30: 504 US schools (1%). Above this entry. 30–32: 307 US schools (0%). Above this entry. 32–34: 189 US schools (0%). Above this entry. 34–36: 141 US schools (0%). Above this entry. 36–38: 93 US schools (0%). Above this entry. 38–40: 94 US schools (0%). Above this entry. 40–42: 59 US schools (0%). Above this entry. 42–44: 46 US schools (0%). Above this entry. 44–46: 56 US schools (0%). Above this entry. 46–48: 58 US schools (0%). Above this entry. 48–50: 34 US schools (0%). Above this entry. 50–52: 37 US schools (0%). Above this entry. 52–54: 30 US schools (0%). Above this entry. 54–56: 15 US schools (0%). Above this entry. 56–58: 25 US schools (0%). Above this entry. 58–60: 20 US schools (0%). Above this entry. This school 0 60 every US school, by class size, bucketed by value

Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Education — NCES Common Core of Data · 2024-25

School size vs. every US school

Total enrollment — where this school sits by size (neither large nor small is 'better')

598 larger than 72% of 95,891 US schools

0–150: 14,035 US schools (15%). Below this entry. 150–300: 16,928 US schools (18%). Below this entry. 300–450: 21,633 US schools (23%). Below this entry. 450–600: 17,006 US schools (18%). This entry sits in this band. 600–750: 10,042 US schools (10%). Above this entry. 750–900: 5,568 US schools (6%). Above this entry. 900–1,050: 3,006 US schools (3%). Above this entry. 1,050–1,200: 1,826 US schools (2%). Above this entry. 1,200–1,350: 1,220 US schools (1%). Above this entry. 1,350–1,500: 908 US schools (1%). Above this entry. 1,500–1,650: 692 US schools (1%). Above this entry. 1,650–1,800: 607 US schools (1%). Above this entry. 1,800–1,950: 502 US schools (1%). Above this entry. 1,950–2,100: 432 US schools (0%). Above this entry. 2,100–2,250: 346 US schools (0%). Above this entry. 2,250–2,400: 252 US schools (0%). Above this entry. 2,400–2,550: 203 US schools (0%). Above this entry. 2,550–2,700: 163 US schools (0%). Above this entry. 2,700–2,850: 115 US schools (0%). Above this entry. 2,850–3,000: 85 US schools (0%). Above this entry. This school 0 3,000 every US school, by enrollment, bucketed by value

Each bar is a band; taller bars hold more US schools. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Department of Education — NCES Common Core of Data · 2024-25

What the federal data reveals about equity at this school

Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.

Staffing depth
12.7:1
students per teacher — 13% below state mean
Top 37% in Illinois — lower ratio than 63% of state schools
Below the 15:1 benchmark — typical of schools with smaller class sizes and more individualized attention.
Engagement
11.2%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$16,048
per pupil, district-wide — below Illinois avg of $17,042
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
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

Enrollment 598 Top 79% in Illinois — larger than 21% of 3,845 state schools
Teachers (FTE) 43.0
Students per teacher 12.7:1 -13% vs state
Free-lunch eligible —
NCES ID 171983005734

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.

Programs & staff

Gifted & talented Yes
Counselors (FTE) 0.0

Discipline & special education

Chronically absent 11.2%
In-school suspensions 0
Out-of-school suspensions 0

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.

Other Schools in This District

Huntley Comm Sch Dist 158 · 5 sibling schools

View district profile

Similar elementary schools in Algonquin

3 comparable elementary schools (grades K-5) serving the same city.

Mackeben Elementary School
Standard public school
522 students 13.6:1 students per teacher
Kenneth E Neubert Elem School
Standard public school
445 students 10.9:1 students per teacher
Algonquin Lakes Elem Sch
Standard public school
408 students 12.9:1 students per teacher

Educator & family resources

In-depth guides on understanding NCES data, school choice, and education funding.

Understanding NCES data

How CCD, CRDC and EDFacts feed every public-school number you see.

Choose a school district

Eight signals that matter more than the overall ranking number.

How schools are funded

Title I, F-33, state aid formulas and what per-pupil spending really means.

Chronic absenteeism

Why missing 10% of school matters and how it varies by district.

Magnet vs charter vs traditional

Three school types, three funding models, three sets of trade-offs.

School discipline data

What CRDC suspension and expulsion records do and don't reveal.

Frequently asked questions about Conley Elementary School

How many students attend Conley Elementary School?

Conley Elementary School has 598 students enrolled. It is a elementary school in Algonquin, IL.

What is the student-teacher ratio at Conley Elementary School?

The student-teacher ratio at Conley Elementary School is 12.7:1, which is 13% lower than the Illinois average of 14.6:1 and 19% 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%. The school serves a diverse student body in Algonquin, IL.

What is the Resource Investment Index for Conley Elementary School?

Conley Elementary School has a Resource Investment Index of 64/100 (C+) based on 3 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.

Is Conley Elementary School a good school?

Conley Elementary School earns a C+ Resource Investment Index (64/100), with class sizes near the Illinois median. The Resource Investment Index reflects staffing, counselor access, gifted programs, and attendance reported to NCES, not test scores or academic outcomes, so treat it as a resource snapshot rather than an overall rating.

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Read our methodology — how this data is sourced, computed, and verified.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2021-22) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type — administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page
  • NCES Common Core of Data (CCD) — universe of U.S. public schools and districts. nces.ed.gov/ccd
  • NCES Civil Rights Data Collection (CRDC) — discipline, absenteeism, and AP-course participation. ocrdata.ed.gov
  • NCES F-33 School District Finance Survey — per-pupil expenditure and revenue sources. nces.ed.gov/ccd/f33agency
  • USDA National School Lunch Program (NSLP) — free and reduced-price lunch eligibility. fns.usda.gov/nslp
  • U.S. Census Bureau ACS — demographic and socioeconomic context for school catchment areas. census.gov/programs-surveys/acs
  • U.S. Department of Education ESSA Title I — federal Title I program participation. ed.gov