2024-25 NCES data Elementary school (grades K-5) NCES 173123005336

Mark W Bills Middle School — Peoria, IL

Federal NCES profile for Mark W Bills Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 24/100.

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0/100100/10024/100
👥 Class size
19
🌟 Gifted program
30
🎓 Counselors
48
📋 Attendance
0
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

Mark W Bills Middle School earns an F Resource Investment Index (24/100), with class sizes larger than 96% of Illinois schools.

F
Resource Index · 24/100
20.2:1
large classes for Illinois
258
students enrolled

School address

Peoria, IL 61615
District: Peoria Sd 150 · 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

258

Illinois · 2024-25 NCES data

Teachers (FTE)

13.0

Federal CCD staff survey

Students per teacher

20.2:1

vs 14.6:1 Illinois avg

+38% vs state

Student-teacher ratio in context

How Mark W Bills Middle School compares with Illinois and U.S. medians

Larger classes than state median
0:135:120.2:1

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

Mark W Bills Middle School reports 258 enrolled students to the National Center for Education Statistics (NCES) alongside 13.0 full-time-equivalent teachers, producing a 20.2:1 student-teacher ratio. That figure sits 38% above the Illinois state mean of 14.6:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.7:1, it is 29% higher, a useful calibration for families comparing districts across state lines.

Counselor coverage works out to roughly 258 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 45.0% according to the 2021-22 Civil Rights Data Collection.

On the finance side, the surrounding Peoria Sd 150 spends $16,851 per pupil district-wide, below the Illinois average of $17,042 and above the national average of $16,593. Revenue comes 41.8% from local sources (property taxes), 40.4% from the state, and 17.7% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 24/100 (F), calculated from 4 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 Mark W Bills Middle 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 20.2:1 ▲ 38% 14.6:1 15.7:1
Enrollment 258 top 28% — —

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)

20 smaller classes than 15% 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%). Below this entry. 14–16: 18,959 US schools (20%). Below this entry. 16–18: 13,660 US schools (15%). Below this entry. 18–20: 8,300 US schools (9%). Below this entry. 20–22: 5,448 US schools (6%). This entry sits in this band. 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')

258 larger than 26% of 95,891 US schools

0–150: 14,035 US schools (15%). Below this entry. 150–300: 16,928 US schools (18%). This entry sits in this band. 300–450: 21,633 US schools (23%). Above this entry. 450–600: 17,006 US schools (18%). Above this entry. 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
20.2:1
students per teacher — 38% above state mean
Top 96% in Illinois — lower ratio than 4% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
45.0%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$16,851
per pupil, district-wide — below Illinois avg of $17,042
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 258 students — the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 18 out-of-school
Suspension rate: 1.2 per 100 students. Combined in-school and out-of-school rate: 8.1 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.

Overview

Enrollment 258 Top 28% in Illinois — larger than 72% of 3,845 state schools
Teachers (FTE) 13.0
Students per teacher 20.2:1 +38% vs state
Free-lunch eligible —
NCES ID 173123005336

Student demographics

African American 60.5%
White 20.9%
Two or More 10.1%
Hispanic or Latino 8.1%
Asian 0.4%

Largest group: African American at 60.5% of enrollment.

Programs & staff

Counselors (FTE) 1.0
Students per counselor 258:1

Discipline & special education

Chronically absent 45.0%
In-school suspensions 3
Out-of-school suspensions 18
Expulsions 1

Funding & spending

District-wide per-pupil expenditure for Peoria Sd 150, which includes Mark W Bills Middle School.

$16,851
Per student
-1%
vs Illinois
Avg $17,042
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 41.8%
State 40.4%
Federal 17.7%

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

Peoria Sd 150 · 5 sibling schools

View district profile

Similar elementary schools in Peoria

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

Lincoln School
Standard public school
823 students 14.8:1 students per teacher
Glen Oak Comm Learning Cntr
Standard public school
794 students 20.3:1 students per teacher
The Elise Ford Allen Academy
Standard public school
642 students 15.6:1 students per teacher
Annie Jo Gordon Comm Lrning Cntr
Standard public school
542 students 14.4:1 students per teacher
Dr Maude a Sanders Primary School
Standard public school
442 students 15.2:1 students per teacher
Ridgeview Elementary School
Standard public school
433 students 17.2:1 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.

Before you act on this record

Treat this page as the federal baseline — then verify locally.

  • Compare Mark W Bills Middle School side-by-side with another school you're considering on the same NCES measures. Compare schools
  • Read the district context — spending per pupil, staffing, and equity ranking are district-level decisions that shape this school. District profile
  • Confirm current enrollment windows, programs, and boundaries with the school directly — federal data lags the current school year. Choosing guide

Figures are the school's reported federal record (CCD 2024-25, CRDC 2021-22) — coverage varies by entity type, and PlainSchools does not rate or rank schools.

Frequently asked questions about Mark W Bills Middle School

How many students attend Mark W Bills Middle School?

Mark W Bills Middle School has 258 students enrolled. It is a elementary school in Peoria, IL.

What is the student-teacher ratio at Mark W Bills Middle School?

The student-teacher ratio at Mark W Bills Middle School is 20.2:1, which is 38% higher than the Illinois average of 14.6:1 and 29% higher than the national average of 15.7:1.

What is the racial and ethnic makeup of Mark W Bills Middle School?

The largest demographic group at Mark W Bills Middle School is African American at 60.5%. The school serves a diverse student body in Peoria, IL.

What is the Resource Investment Index for Mark W Bills Middle School?

Mark W Bills Middle School has a Resource Investment Index of 24/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.

Is Mark W Bills Middle School a good school?

Mark W Bills Middle School earns an F Resource Investment Index (24/100), with class sizes larger than 96% of Illinois schools. 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