Montmorency CCSD #145
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 49 of every 100 students at this school read and write at grade level and about 47 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 4 points since 2023, while math scores are up about 9 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 44% of students here test proficient in math and reading, compared with the roughly 50% 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%.
7-year change
SY 2017-18 vs SY 2024-25About Montmorency CCSD #145
As an intimate elementary-level community in Rock Falls, Illinois, Montmorency CCSD #145 serves 209 students from grades K through 8, one of the schools within Montmorency CCSD 145. Compared to the state average of about 381 students per school, that is 45% leaner than typical.
Montmorency CCSD #145 sits inside Montmorency CCSD 145, the local public-school operator responsible for the campus.
On the student-mix side, Montmorency CCSD #145 shows that White students make up the majority at 79%. Other groups include 16% Hispanic, 4% multiracial.
On the resource side, The school lists 21 full-time-equivalent teachers, for a student-teacher ratio near 9.9:1. Statewide, the average ratio sits near 13.9:1, putting Montmorency CCSD #145 tighter than the state norm the norm. An estimated 38% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Whiteside County runs at roughly 55%, so the school's eligibility rate is meaningfully below the surrounding baseline.
On a residual basis (actual vs predicted given the student mix), Montmorency CCSD #145 performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 49.7%, the actual is 44.1%, a residual of -5.5 points.
Across the wider county, census data for Whiteside County shows median household income runs about $67,500, 21% of adults hold a bachelor's degree or higher, and the poverty rate sits near 8%. Across Whiteside County's 50 public schools (combined enrollment of about 8,445 students), Montmorency CCSD #145 is one campus in the mix.
Dillon Elementary School is the nearest neighboring public school, about 3.0 miles from this campus. 6 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Montmorency CCSD #145 comes 3rd of 7 in the immediate cluster, higher than the nearby-schools average of 41.2%.
The school occupies a low-density site.
Looking at the recent track record. Montmorency CCSD #145's enrollment has decreased 21% since 2018, when it stood at 265 (now 209). Class-load math has tightened: from 11.3:1 in 2018 to 9.9:1 in 2025.
Inside the community feed, the feed for Montmorency CCSD #145 typically covers school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.
Whiteside County at a glance
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Related schools
- Rock Falls Township High SchoolHigh · 530 students
- Dillon Elementary SchoolElementary · 278 students
- Merrill Elem SchoolElementary · 258 students
- Rock Falls Middle SchoolMiddle · 246 students
- East Coloma - Nelson Elem SchElementary · 214 students
- Riverdale PreSchool CenterElementary · 145 students
- Dillon Elementary School3.0 mi · 278
- Rock Falls Middle School3.2 mi · 246
- Riverdale PreSchool Center3.8 mi · 145
- Merrill Elem School3.9 mi · 258
- East Coloma - Nelson Elem Sch4.0 mi · 214
- Rock Falls Township High School4.1 mi · 530