Total enrollment
1,095
-21 (-2%) vs SY 2020-21
3 schools in Riverdale CUSD 100
Illinois · 1,095 students · 1 city
Whether you are tracking a high school, middle school, or elementary school, Riverdale CUSD 100's 3 public K-12 schools collectively enroll about 1,095 students (1 elementary, 1 middle, and 1 high).
4-year change in Riverdale CUSD 100
SY 2020-21 vs SY 2024-25School count
3
0 (0%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Riverdale CUSD 100 ranks
Among districts| Measure | This district | In Illinois | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 57.1% | #46 of 327 | N/A |
| Enrollment ranked largest first | 1,095 | #322 of 508 | #6,611 of 9,234 |
| Number of schools ranked most first | 3 | #376 of 508 | N/A |
| Students per teacher ranked fewest first | 12.8:1 | #208 of 506 | #2,909 of 9,044 |
| Free or reduced-price lunch share ranked highest first | 15.8% | #448 of 456 | #7,708 of 8,164 |
| Diversity index ranked most diverse first | 22.3% | #281 of 341 | #5,469 of 6,853 |
Districts need at least 2 schools and 500 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Inside Riverdale CUSD 100
Since 2017-18, the 3 district schools that reported both years went from 1,168 to 1,095 students (down 6%) and from 73 to 85 full-time teachers (up 16%), as of 2024-25.
Proficient is the average share of students meeting the state standard across each school's state tests in 2023-24 and 2024-25; schools with fewer than 100 students and schools serving specialized populations are left out. Staffing figures come from the NCES Common Core of Data and count only schools that reported students and teachers in both years.
| Name | City | Level | Grades | Enrollment |
|---|---|---|---|---|
| Riverdale Elem School | Port Byron | Elementary | PK-05 | 517 |
| Riverdale Sr High School | Port Byron | High | 09-12 | 324 |
| Riverdale Middle School | Port Byron | Middle | 06-08 | 254 |
About Riverdale CUSD 100
Riverdale CUSD 100 is a thinly populated Illinois school district running 3 schools with combined enrollment near 1,095.
On the level-by-level breakdown, Riverdale CUSD 100 spans 1 elementary, 1 middle, and 1 high school.
Average enrollment per school in Riverdale CUSD 100 is about 365, below the Illinois average of roughly 480.
Trend over the past 4 years. Across the same 4-year window, public-school enrollment stayed largely flat: 1,116 students in SY 2020-21 versus 1,095 in SY 2024-25.
On this page, the community for Riverdale CUSD 100 discusses open enrollment windows, redistricting talk, and busing logistics. Discussions cut across districts, schools, and grade levels.