1
Enrollment
517
Elementary
DISTRICT 365 · STATE 381
SCHOOL COMMUNITY·RIVERDALE CUSD 100·NCES 173393003483
Riverdale Elementary School
9424 256th St N, Port Byron, IL 61275 · (309) 523-3186 · Rock Island County
GRADES PK–05ELEMENTARY41-RURALREGULAR SCHOOL517 STUDENTS
Student : Teacher
12.9:1
40 FTE teachers
DISTRICT 13.0:1 · STATE 13.9:1
Free / Reduced Lunch
16%
81 students
DISTRICT 16% · 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 |
|---|---|---|
| Pre-K | 84 | 16% |
| Kindergarten | 67 | 13% |
| Grade 1 | 70 | 14% |
| Grade 2 | 76 | 15% |
| Grade 3 | 84 | 16% |
| Grade 4 | 59 | 11% |
| Grade 5 | 77 | 15% |
This year's kindergarten class (67) is 13% smaller than its 5th grade class (77).
Student demographics
25%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 22% · 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 Riverdale CUSD 100. Attendance zones can vary; confirm enrollment with the district.
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)English Language Arts
68.4%
IL avg 51.0% . +13.5pp since 2023
Math
62.3%
IL avg 37.9% . +18.0pp 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 62 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 18 points.
IAR + ISA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 68.4% | 62.3% |
| 2023-24 | 54.9% | 44.3% |
% 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
61.7%
composite math + reading, all grades
Predicted
62.5%
based on IL schools with similar FRL share
Beats by
-0.8pp
below demographic expectation
What this means: About 62% of students here test proficient in math and reading, compared with the roughly 62% 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 Riverdale Elementary School
Riverdale Elementary School's state test result (61.7% proficient) is higher than 0 of the 3 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Riverdale Elementary School this school | 517 | 15.7% | 61.7% |
| Wilson Creek Elementary School Manhattan | 545 | 13.4% | N/A |
| Grundy Elementary School Morton | 465 | 16.6% | 75.3% |
| Lincoln Elementary School Morton | 517 | 13.7% | 66.4% |
| Anna McDonald Elementary School Manhattan | 434 | 18.4% | 63.2% |
| Manhattan Intermediate School Manhattan | 417 | 14.6% | N/A |
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 Riverdale Elementary School ranks
Among elementary schools| Measure | This school | In Illinois | In Rock Island County |
|---|---|---|---|
| State test proficiency ranked highest first | 61.7% | #280 of 1,925 | #1 of 28 |
| Math proficiency ranked highest first | 62.3% | #363 of 2,077 ▲ 79 | #1 of 28 no change |
| Reading proficiency ranked highest first | 68.4% | #396 of 2,077 ▼ 43 | #1 of 28 no change |
| Enrollment ranked largest first | 517 | #485 of 2,419 | #3 of 33 |
| Students per teacher ranked fewest first | 12.9:1 | #871 of 2,035 | #8 of 28 |
| Diversity index ranked most diverse first | 25.0% | #1,503 of 2,042 | #27 of 28 |
| Free and reduced lunch ranked highest share first | 15.7% | #2,026 of 2,132 | #32 of 32 |
| Enrollment change since 2017-18 ranked steepest decline first | -9.6% | #937 of 1,461 | #11 of 19 |
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
517
-17 (-3%) vs 2020
-26% since 1990-91, when it was 700
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 | 517 | 40 | 12.9:1 | 16% (81) |
| 2023-24 | 515 | 38 | 13.6:1 | 16% (84) |
| 2022-23 | 513 | 35 | 14.7:1 | 15% (78) |
| 2020-21 | 534 | N/A | N/A | N/A |
| 2017-18 | 572 | 34 | 16.8:1 | 21% (121) |
| 2015-16 | 585 | 32 | 18.3:1 | 30% (177) |
| 2010-11 | 595 | 29 | 20.5:1 | 26% (153) |
| 2000-01 | 641 | 39 | 16.4:1 | N/A |
| 1990-91 | 700 | 38 | 18.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Riverdale Elementary School.
Since 2017-18: students down 10% (572 to 517); teachers up 18% (34 to 40).
About Riverdale Elementary School
In Port Byron, Illinois, Riverdale Elementary School is a medium-sized elementary school. Its 517 students are spread across pre-K through 5. The typical figure for elementary schools in Illinois is about 381 students.
District-wide, Riverdale CUSD 100 has 3 schools and 1,095 students.
Federal enrollment data show Riverdale Elementary School is 86% White. Enrollment also includes 9% Hispanic and 4% multiracial. The school's White share is 15 points above the 72% share among Rock Island County residents. Riverdale Elementary School's diversity index is 25%, against a US figure of 70%.
Federal records show a student-to-teacher ratio of 12.9:1 at Riverdale Elementary School, with 40 full-time-equivalent teachers. This ratio sits 1.0 below the 13.9:1 average for elementary schools in Illinois. Free and reduced-price lunch eligibility, a common measure of family income, is 16%. Across public schools in Rock Island County, the average is 65%.
After adjusting for student poverty, Riverdale Elementary School lands between the top and bottom 10% of Illinois schools. Its average proficiency rate on state tests is 61.7%; the prediction is 62.5%.
Rock Island County has these Census figures: the median household income is $67,159, roughly 25% of adults have a four-year degree or more, and about 11% of residents live below the federal poverty line. Rock Island County is home to 57 public schools and about 21,921 public school students.
The school nearest to Riverdale Elementary School is Riverdale Sr High School, at a distance of about 0.2 miles. Other public schools within five miles number 3. Ranked by average proficiency, Riverdale Elementary School places 5th out of 9 schools in its immediate area.
The school is in rural territory close to an urban area, according to its NCES locale (Rural: Fringe).
Enrollment has fallen by 17 students since 2020-21, to 517.
The allk12 site hosts a discussion page for Riverdale Elementary School covering things like sports schedules, lunch menus, and spirit week. Posting is open to anyone connected to the school.
Rock Island County at a glance
View full county profilePopulation
142,757
Census ACS
Median income
$67,159
Household, ACS
Bachelor's+
25%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
57
21,921 students
Quick facts
Related schools
Other schools in Riverdale CUSD 100
- Riverdale Sr High SchoolHigh · 324 students
- Riverdale Middle SchoolMiddle · 254 students
Other schools in Port Byron
- Riverdale Sr High SchoolHigh · 324 students
- Riverdale Middle SchoolMiddle · 254 students
Other Riverdale Elementary schools
12 other US public schools in 11 states are named Riverdale Elementary. Riverdale Elementary School is the 6th largest of the 13.
- Riverdale Elementary SchoolGermantown, TN · 1,184 students
- Riverdale ElementaryRiverdale, MD · 586 students
- RIVERDALE ELEMENTARYORLANDO, FL · 566 students
- Riverdale Elementary SchoolRiverdale, GA · 559 students
- Riverdale ElementaryCourtland, VA · 533 students
Nearby schools
- Riverdale Sr High School0.2 mi · 324
- Riverdale Middle School0.5 mi · 254
- Bridgeview Elementary School4.9 mi · 343
- Cody Elementary School5.3 mi · 443
- Virgil Grissom Elementary School5.9 mi · 152
- Pleasant Valley Junior High School6.5 mi · 940
Frequently asked questions
About Riverdale Elementary SchoolWhat is the total enrollment at Riverdale Elementary School?
Riverdale Elementary School enrolls approximately 517 students in grades PK-05.
What grades does Riverdale Elementary School serve?
Riverdale Elementary School serves grades PK-05.
How many students per teacher at Riverdale Elementary School?
Approximately 12.9:1 students per teacher at Riverdale Elementary School.
What is the student diversity at Riverdale Elementary School?
Student demographics at Riverdale Elementary School are roughly 86% White, 9% Hispanic, 1% Black, 0% Asian, 4% Two or more.
Who oversees Riverdale Elementary School?
Riverdale Elementary School is overseen by Riverdale CUSD 100 in Rock Island County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.