Enrollment
294
Elementary
DISTRICT 198 · STATE 381
SCHOOL COMMUNITY·POLO CUSD 222·NCES 173210003358
Centennial Elementary School
308 S Pleasant Ave, Polo, IL 61064 · (815) 946-3811 · Ogle County
GRADES PK–05ELEMENTARY42-RURALTITLE IREGULAR SCHOOL294 STUDENTS
A
allk12 Grade
Scored higher than 89% of Illinois public elementary schools
- A-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ABeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Illinois public elementary schools
Student : Teacher
16.0:1
18 FTE teachers
DISTRICT 13.5:1 · STATE 13.9:1
Free / Reduced Lunch
44%
129 students
DISTRICT 43% · STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 55 | 19% |
| Kindergarten | 43 | 15% |
| Grade 1 | 40 | 14% |
| Grade 2 | 37 | 13% |
| Grade 3 | 44 | 15% |
| Grade 4 | 40 | 14% |
| Grade 5 | 35 | 12% |
This year's kindergarten class (43) is 23% larger than its 5th grade class (35).
Student demographics
18%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 19% · STATE 69% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Students here typically continue to
Based on grade levels within Polo CUSD 222. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at Centennial Elementary School.
START A DISCUSSIONTest scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
67.5%
IL avg 51.0% . +20.9pp since 2023
Math
71.1%
IL avg 37.9% . +17.7pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 68 of every 100 students at this school read and write at grade level and about 71 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 21 points since 2023, while math scores are up about 18 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 67.5% | 71.1% |
| 2023-24 | 46.6% | 53.4% |
% Proficient (Levels 4-5), all students and all tested grades.
Source: IAR + ISA. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of IL schools after controlling for student poverty
Actual proficiency
63.5%
composite math + reading, all grades
Predicted
46.2%
based on IL schools with similar FRL share
Beats by
+17.4pp
above demographic expectation
What this means: About 64% of students here test proficient in math and reading, well above the roughly 46% typical for Illinois schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 17 points, placing it in Illinois's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Centennial Elementary School
Centennial Elementary School's state test result (63.5% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Centennial Elementary School this school | 294 | 43.9% | 63.5% |
| Galva Elementary School Galva | 280 | 42.9% | 41.9% |
| Chester-East Lincoln Elementary School Lincoln | 288 | 44.4% | 59.2% |
| Adams School Creal Springs | 283 | 42.4% | 63.8% |
| Heritage JH and Elementary School Homer | 270 | 44.1% | 52.5% |
| Steeleville Elementary School Steeleville | 323 | 43.0% | 34.1% |
Matched among Illinois elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Centennial Elementary School ranks
Among elementary schools| Measure | This school | In Illinois | In Ogle County |
|---|---|---|---|
| State test proficiency ranked highest first | 63.5% | #238 of 1,925 | #2 of 7 |
| Math proficiency ranked highest first | 71.1% | #201 of 2,077 ▲ 51 | #2 of 7 ▼ 1 |
| Reading proficiency ranked highest first | 67.5% | #420 of 2,077 ▲ 168 | #3 of 7 ▼ 1 |
| Enrollment ranked largest first | 294 | #1,572 of 2,419 | #7 of 12 |
| Students per teacher ranked fewest first | 16.0:1 | #1,719 of 2,035 | #9 of 9 |
| Diversity index ranked most diverse first | 17.6% | #1,695 of 2,042 | #8 of 9 |
| Free and reduced lunch ranked highest share first | 43.9% | #1,462 of 2,132 | #5 of 9 |
| Enrollment change since 2017-18 ranked fastest growth first | +5.8% | #404 of 615 | #5 of 7 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
294
+17 (+6%) vs 2020
-1% since 1990-91, when it was 297
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 294 | 18.4 | 16.0:1 | 44% (129) |
| 2023-24 | 297 | 19.2 | 15.4:1 | 51% (151) |
| 2022-23 | 279 | 18.6 | 15.0:1 | 49% (136) |
| 2020-21 | 277 | N/A | N/A | N/A |
| 2017-18 | 278 | 18.5 | 15.0:1 | 49% (136) |
| 2015-16 | 277 | 20 | 13.8:1 | 44% (121) |
| 2010-11 | 313 | 18 | 17.4:1 | 44% (139) |
| 2000-01 | 366 | 25 | 14.6:1 | N/A |
| 1990-91 | 297 | 15 | 19.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Centennial Elementary School.
Since 2017-18: students up 6% (278 to 294); teachers unchanged (18.5 to 18.4).
About Centennial Elementary School
Centennial Elementary School operates as a small elementary school in Polo, Illinois. Students in pre-K through 5 attend the school, which enrolls 294 students. The average among elementary schools in Illinois is roughly 381 students; this school is 23% smaller than that.
Centennial Elementary School falls under Polo CUSD 222, which has 3 schools enrolling 594 students.
Most students at Centennial Elementary School are White: 90% of enrollment. Other groups make up 7% Hispanic and 2% multiracial. Centennial Elementary School has a diversity index of 18%, compared with 70% for all US public school students.
The teaching staff at Centennial Elementary School is 18.4 full-time-equivalent teachers, and the ratio is 16.0:1. That ratio is over the 13.9:1 average for elementary schools in Illinois. The percentage of students eligible for free or reduced-price lunch is 44%.
Measured against Illinois public elementary schools, Centennial Elementary School receives an A. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.
On a poverty-adjusted basis, Centennial Elementary School is in the top 10% of Illinois schools: 63.5% actual against 46.2% predicted.
Across Ogle County, median household income is about $82,132, the share of adults with a bachelor's degree or higher is 24%, and roughly 6% of residents are in poverty. Centennial Elementary School is among the 26 public schools in Ogle County.
Of nearby public schools, Aplington Middle School is the closest, at about 0.3 miles. The count of other public schools within five miles is 2. Its average proficiency rate of 63.5% is above the 45.8% average for nearby schools.
Centennial Elementary School is in rural territory some distance from an urban area, a location NCES labels Rural: Distant.
Between 2020-21 and 2024-25, the student count climbed from 277 to 294.
Posts about sports tryouts, band and choir, and theater are welcome on this page. Reviews and ratings from people who know the school are welcome.
Ogle County at a glance
View full county profilePopulation
51,495
Census ACS
Median income
$82,132
Household, ACS
Bachelor's+
24%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
26
8,269 students
Quick facts
Related schools
Other schools in Polo CUSD 222
- Polo Comm High SchoolHigh · 186 students
- Aplington Middle SchoolMiddle · 114 students
Other schools in Polo
- Polo Comm High SchoolHigh · 186 students
- Aplington Middle SchoolMiddle · 114 students
Other Centennial Elementary schools
33 other US public schools in 17 states are named Centennial Elementary. Centennial Elementary School is the 30th largest of the 34.
- Centennial Elementary SchoolStreator, IL · 482 students
- Centennial Elementary SchoolPlano, IL · 351 students
- Centennial Elementary SchoolHOUSTON, TX · 1,090 students
- Centennial ElementaryOREM, UT · 761 students
- Centennial ElementaryFresno, CA · 741 students
Nearby schools
- Aplington Middle School0.3 mi · 114
- Polo Comm High School0.3 mi · 186
- Forreston Grade School9.7 mi · 238
- Jefferson Elementary School9.8 mi · 344
- Forreston Jr/Sr High School10.0 mi · 406
- Washington Elementary School10.2 mi · 424
Frequently asked questions
About Centennial Elementary SchoolHow large is Centennial Elementary School?
Centennial Elementary School enrolls approximately 294 students in grades PK-05.
What grades does Centennial Elementary School serve?
Centennial Elementary School serves grades PK-05.
How many students per teacher at Centennial Elementary School?
Approximately 16.0:1 students per teacher at Centennial Elementary School.
How diverse is Centennial Elementary School?
Centennial Elementary School reports a student body of 90% White, 7% Hispanic, 0% Black, 2% Two or more.
What district is Centennial Elementary School in?
Centennial Elementary School is part of Polo CUSD 222.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.