1
Enrollment
588
Elementary
DISTRICT 603 · STATE 381
SCHOOL COMMUNITY·LEMONT-BROMBEREK CSD 113A·NCES 170729005661
River Valley School
15425 E 127th St, Lemont, IL 60439 · (630) 257-2286 · Cook County
GRADES 02–03ELEMENTARY21-SUBURBREGULAR SCHOOL588 STUDENTS
A-
allk12 Grade
Scored higher than 78% of Illinois public elementary schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- BBeats 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
16.3:1
36 FTE teachers
DISTRICT 16.1:1 · STATE 13.9:1
Free / Reduced Lunch
18%
108 students
DISTRICT 18% · STATE 56%
Community
5
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 |
|---|---|---|
| Grade 2 | 287 | 49% |
| Grade 3 | 300 | 51% |
| Grade 7 | 1 | 0% |
Student demographics
32%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 32% · 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
Feeds from
Based on grade levels within Lemont-Bromberek CSD 113A. Attendance zones can vary; confirm enrollment with the district.
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
64.7%
IL avg 51.0% . +14.4pp since 2023
Math
73.7%
IL avg 37.9% . +10.2pp since 2023
What this means: On the IAR + ISA, Illinois's statewide test, about 65 of every 100 students at this school read and write at grade level and about 74 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 14 points since 2023, while math scores are up about 10 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 64.7% | 73.7% |
| 2023-24 | 50.3% | 63.5% |
% 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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
65.1%
composite math + reading, all grades
Predicted
60.9%
based on IL schools with similar FRL share
Beats by
+4.2pp
above demographic expectation
What this means: About 65% of students here test proficient in math and reading, compared with the roughly 61% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 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 River Valley School
River Valley School's state test result (65.1% proficient) is higher than 3 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| River Valley School this school | 588 | 18.4% | 65.1% |
| Central School Lemont | 591 | 19.0% | 59.4% |
| Oakwood School Lemont | 629 | 14.5% | N/A |
| Prairie Grove Elementary School Crystal Lake | 552 | 21.9% | 58.3% |
| Ebinger Elementary School Chicago | 693 | 14.7% | 63.4% |
| Isaac Fox Elementary School Lake Zurich | 520 | 15.6% | 71.8% |
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 River Valley School ranks
Among elementary schools| Measure | This school | In Illinois | In Cook County |
|---|---|---|---|
| State test proficiency ranked highest first | 65.1% | #203 of 1,925 | #71 of 760 |
| Math proficiency ranked highest first | 73.7% | #156 of 2,077 ▼ 41 | #59 of 829 ▼ 15 |
| Reading proficiency ranked highest first | 64.7% | #512 of 2,077 ▼ 35 | #175 of 829 ▼ 8 |
| Enrollment ranked largest first | 588 | #293 of 2,419 | #165 of 901 |
| Students per teacher ranked fewest first | 16.3:1 | #1,775 of 2,035 | #736 of 817 |
| Diversity index ranked most diverse first | 32.4% | #1,345 of 2,042 | #501 of 819 |
| Free and reduced lunch ranked highest share first | 18.4% | #1,986 of 2,132 | #751 of 804 |
| Enrollment change since 2017-18 ranked steepest decline first | -13.1% | #756 of 1,461 | #398 of 661 |
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
588
-174 (-23%) vs 2020
+16% since 2010-11, when it was 507
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 | 588 | 36 | 16.3:1 | 18% (108) |
| 2023-24 | 578 | 37.5 | 15.4:1 | 17% (98) |
| 2022-23 | 562 | 38 | 14.8:1 | 16% (91) |
| 2020-21 | 762 | N/A | N/A | N/A |
| 2017-18 | 677 | 38.3 | 17.7:1 | 16% (106) |
| 2015-16 | 729 | 37 | 19.7:1 | 12% (90) |
| 2010-11 | 507 | 21 | 24.1:1 | 10% (49) |
Source: NCES Common Core of Data. Rows are the federal collections on file for River Valley School.
Since 2017-18: students down 13% (677 to 588); teachers down 6% (38.3 to 36).
About River Valley School
River Valley School, a large elementary school, is located in Lemont, Illinois. It teaches 588 students in grades 2 through 3. It has 54% more students than the average for elementary schools in Illinois (about 381).
River Valley School is among 4 schools run by Lemont-Bromberek CSD 113A, which serves 2,664 students.
A large majority of enrollment at River Valley School is White, at 81%. The rest of enrollment is 10% Hispanic, 5% Asian, and 3% multiracial. Among all residents of Cook County, the White share is about 44%. The diversity index for River Valley School is 32%. For US public schools as a whole it is 70%.
A staff of 36 full-time-equivalent teachers puts the student-to-teacher ratio at 16.3:1. The gap from the 13.9:1 average for elementary schools in Illinois is 2.4 students per teacher. By family income, 18% of students are eligible for free or reduced-price lunch. Among public schools in Cook County, the average eligibility rate is 66%.
On the allk12 Grade, River Valley School lands at A-, ahead of 78% of Illinois public elementary schools.
Predicted from its free or reduced-price lunch share, River Valley School would score about 60.9%. It scores 65.1%, 4.2 points above that figure.
Cook County is the school's county. There, median household income comes to about $83,498, the share of adults with a bachelor's degree or higher is 43%, and roughly 10% of residents are in poverty. There are 1,406 public schools in the county, enrolling about 697,934, River Valley School among them.
Measured in a straight line, Oakwood School is less than a tenth of a mile from River Valley School. Other public schools within five miles: at least 8. The school's 65.1% average proficiency ranks 3rd among 7 nearby schools.
NCES assigns River Valley School the locale Suburb: Large, meaning in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
The school's enrollment fell 23% from 2020-21 to 2024-25.
The allk12 page for River Valley School lets the school community talk about pickup and drop-off, after-school programs, and teacher feedback. Current and former families are welcome to add their experience.
Cook County at a glance
View full county profilePopulation
5,182,090
Census ACS
Median income
$83,498
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
1,406
697,934 students
Quick facts
Related schools
Other schools in Lemont-Bromberek CSD 113A
- Old Quarry Middle SchoolMiddle · 856 students
- Oakwood SchoolElementary · 629 students
- Central SchoolElementary · 591 students
Other schools in Lemont
- Lemont Twp High SchoolHigh · 1,284 students
- Old Quarry Middle SchoolMiddle · 856 students
- Oakwood SchoolElementary · 629 students
- Central SchoolElementary · 591 students
Nearby schools
- Oakwood School0.1 mi · 629
- Old Quarry Middle School0.9 mi · 856
- Central School1.0 mi · 591
- Lemont Twp High School1.2 mi · 1,284
- Reed Elementary School2.3 mi · 291
- Oak Prairie Jr High School3.3 mi · 460
Frequently asked questions
About River Valley SchoolWhat is the total enrollment at River Valley School?
River Valley School enrolls approximately 588 students in grades 02-03.
Is River Valley School an elementary, middle, or high school?
River Valley School is an elementary school covering grades 02-03.
How many teachers does River Valley School have?
River Valley School employs 36 FTE teachers, for a student-to-teacher ratio of 16.3:1.
How diverse is River Valley School?
River Valley School reports a student body of 81% White, 10% Hispanic, 1% Black, 5% Asian, 3% Two or more.
Is River Valley School public or private?
River Valley School is a public K-12 school, overseen by Lemont-Bromberek CSD 113A.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.