Enrollment
327
Elementary
DISTRICT 455 · STATE 381
SCHOOL COMMUNITY·DECATUR SD 61·NCES 171185004424
Robertson Charter School
2240 E Geddes Ave, Decatur, IL 62526 · (217) 428-7072 · Macon County
GRADES PK–08ELEMENTARY13-CITYCHARTERTITLE IREGULAR SCHOOL327 STUDENTS
Student : Teacher
29.7:1
11 FTE teachers
DISTRICT 18.3:1 · STATE 13.9:1
Free / Reduced Lunch
64%
209 students
DISTRICT 81% · 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 | 40 | 12% |
| Kindergarten | 28 | 9% |
| Grade 1 | 28 | 9% |
| Grade 2 | 29 | 9% |
| Grade 3 | 28 | 9% |
| Grade 4 | 28 | 9% |
| Grade 5 | 28 | 9% |
| Grade 6 | 30 | 9% |
| Grade 7 | 44 | 13% |
| Grade 8 | 44 | 13% |
This year's kindergarten class (28) is 36% smaller than its 8th grade class (44).
Student demographics
20%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 65% · 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
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
31.0%
IL avg 51.0% . +5.0pp since 2023
Math
5.9%
IL avg 37.9% . +3.4pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 31 of every 100 students at this school read and write at grade level and about 6 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 5 points since 2023, while math scores are up about 3 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 31.0% | 5.9% |
| 2023-24 | 26.0% | 2.5% |
% 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
UNDERPERFORMING
Bottom 10% of IL schools after controlling for student poverty
Actual proficiency
17.3%
composite math + reading, all grades
Predicted
34.6%
based on IL schools with similar FRL share
Beats by
-17.4pp
below demographic expectation
What this means: About 17% of students here test proficient in math and reading, below the roughly 35% typical for Illinois schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
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 Robertson Charter School
Robertson Charter School's state test result (17.3% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Robertson Charter School this school | 327 | 63.9% | 17.3% |
| Reavis Elementary Math & Sci Spec Schl Chicago | 356 | 66.6% | 12.5% |
| Meadowview School Country Club Hills | 293 | 65.5% | 19.8% |
| Marya Yates Elementary School Matteson | 284 | 66.2% | 19.9% |
| Greenwood Elementary School South Holland | 321 | 67.3% | 18.2% |
| Coles Elementary Language Academy Chicago | 286 | 60.8% | 22.1% |
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 Robertson Charter School ranks
Among elementary schools| Measure | This school | In Illinois | In Macon County |
|---|---|---|---|
| State test proficiency ranked highest first | 17.3% | #1,690 of 1,925 | #7 of 16 |
| Math proficiency ranked highest first | 5.9% | #2,012 of 2,077 ▼ 10 | #11 of 16 no change |
| Reading proficiency ranked highest first | 31.0% | #1,639 of 2,077 ▼ 305 | #7 of 16 ▼ 1 |
| Enrollment ranked largest first | 327 | #1,376 of 2,419 | #17 of 19 |
| Students per teacher ranked fewest first | 29.7:1 | #2,025 of 2,035 | #18 of 18 |
| Diversity index ranked most diverse first | 19.6% | #1,635 of 2,042 | #15 of 18 |
| Free and reduced lunch ranked highest share first | 63.9% | #893 of 2,132 | #11 of 19 |
| Enrollment change since 2017-18 ranked steepest decline first | -0.3% | #1,452 of 1,461 | #7 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
327
-37 (-10%) vs 2020
+9% since 2010-11, when it was 299
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 | 327 | 11 | 29.7:1 | 64% (209) |
| 2023-24 | 332 | 6 | 55.3:1 | 77% (256) |
| 2022-23 | 329 | 7 | 47.0:1 | 68% (224) |
| 2020-21 | 364 | N/A | N/A | N/A |
| 2017-18 | 328 | 0.5 | 656.0:1 | 97% (319) |
| 2015-16 | 331 | N/A | N/A | 85% (282) |
| 2010-11 | 299 | 9 | 33.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Robertson Charter School.
Since 2017-18: students unchanged (328 to 327); teachers up 2100% (0.5 to 11).
About Robertson Charter School
Robertson Charter School is a medium-sized elementary school in Decatur, Illinois, that operates as a charter school. It educates 327 students in pre-K through 8.
Decatur SD 61 has 15 schools and 7,840 students, and Robertson Charter School is one of those schools.
Federal enrollment data show Robertson Charter School is 89% Black. The school is also 8% multiracial. The Black share of the county population is lower, at 16%. Robertson Charter School's diversity index is 20%, against a US figure of 70%.
Robertson Charter School operates with 11 full-time-equivalent teachers, a ratio of about 29.7:1. On average, elementary schools in Illinois have 13.9:1, compared with 29.7:1 here. Robertson Charter School reports 64% of students eligible for free or reduced-price meals. For comparison, public schools in Macon County average 61%.
The school's average proficiency rate on state tests, 17.3%, is 17.4 points below the 34.6% the model predicts from its free or reduced-price lunch share. That result is in the bottom 10% of Illinois schools.
Among Macon County residents, the median household income is $62,666, the share of adults with a bachelor's degree or higher is 24%, and roughly 10% of residents are in poverty. Besides Robertson Charter School, Macon County has 42 other public schools.
The school nearest to Robertson Charter School is Hope Academy, at a distance of about 1.1 miles. Other public schools within five miles number at least 8. The average proficiency across nearby scored schools is 11.6%; Robertson Charter School's is 17.3%, ranking 1st of 8.
Its NCES locale code is City: Small: the school is inside a principal city with a population under 100,000. The school is a charter school, funded with public money and operated under a charter agreement.
Federal data show a 10% enrollment decrease, from 364 in 2020-21 to 327 in 2024-25.
Questions about school safety, transportation, and start times can be posted here. Reviews and ratings from people who know the school are welcome.
Macon County at a glance
View full county profilePopulation
101,849
Census ACS
Median income
$62,666
Household, ACS
Bachelor's+
24%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
43
14,702 students
Quick facts
Related schools
Other schools in Decatur SD 61
- MacArthur High SchoolHigh · 1,059 students
- Eisenhower High SchoolHigh · 909 students
- Johns Hill Magnet SchoolElementary · 627 students
- Montessori Academy for PeaceElementary · 586 students
- Dennis Lab SchoolElementary · 579 students
- Parsons Elementary SchoolElementary · 505 students
Other schools in Decatur
- MacArthur High SchoolHigh · 1,059 students
- Eisenhower High SchoolHigh · 909 students
- Johns Hill Magnet SchoolElementary · 627 students
- Montessori Academy for PeaceElementary · 586 students
- Dennis Lab SchoolElementary · 579 students
- Parsons Elementary SchoolElementary · 505 students
Nearby schools
- Hope Academy1.1 mi · 501
- Johns Hill Magnet School1.8 mi · 627
- Stephen Decatur Middle School2.1 mi · 413
- Eisenhower High School2.1 mi · 909
- Michael E Baum Elementary School2.4 mi · 313
- Muffley Elementary School2.7 mi · 386
Frequently asked questions
About Robertson Charter SchoolHow large is Robertson Charter School?
Robertson Charter School enrolls approximately 327 students in grades PK-08.
Is Robertson Charter School an elementary, middle, or high school?
Robertson Charter School is an elementary school covering grades PK-08.
How many teachers does Robertson Charter School have?
Robertson Charter School employs 11 FTE teachers, for a student-to-teacher ratio of 29.7:1.
What is the student diversity at Robertson Charter School?
Student demographics at Robertson Charter School are roughly 1% White, 1% Hispanic, 89% Black, 8% Two or more.
Who oversees Robertson Charter School?
Robertson Charter School is overseen by Decatur SD 61 in Macon County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.