Enrollment
114
High
STATE 834
SCHOOL COMMUNITY·ARMSTRONG TWP HSD 225·NCES 170423000119
Armstrong High School
30474 Smith, Armstrong, IL 61812 · (217) 569-2122 · Vermilion County
GRADES 09–12HIGH42-RURALREGULAR SCHOOL114 STUDENTS
Student : Teacher
8.1:1
14 FTE teachers
STATE 13.8:1
Free / Reduced Lunch
38%
43 students
STATE 56%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 35 | 31% |
| Grade 10 | 30 | 26% |
| Grade 11 | 21 | 18% |
| Grade 12 | 28 | 25% |
Student demographics
16%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
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
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of IL schools after controlling for student poverty
Actual proficiency
28.0%
composite math + reading, all grades
Predicted
49.7%
based on IL schools with similar FRL share
Beats by
-21.8pp
below demographic expectation
What this means: About 28% of students here test proficient in math and reading, below the roughly 50% 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 Armstrong High School
Armstrong High School's state test result (28.0% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Armstrong High School this school | 114 | 37.7% | 28.0% |
| Windsor Jr & Sr High School Windsor | 134 | 37.3% | 32.0% |
| A-C Central High School Ashland | 96 | 38.5% | 31.5% |
| River Ridge High School Hanover | 128 | 36.7% | 44.1% |
| Cuba Sr High School Cuba | 118 | 38.1% | 33.2% |
| Woodland High School Streator | 138 | 37.0% | 39.9% |
Matched among Illinois high 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 Armstrong High School ranks
Among high schools| Measure | This school | In Illinois | In Vermilion County |
|---|---|---|---|
| State test proficiency ranked highest first | 28.0% | #378 of 573 | #5 of 7 |
| Enrollment ranked largest first | 114 | #635 of 708 | #8 of 9 |
| Free and reduced lunch ranked highest share first | 37.7% | #432 of 578 | #8 of 8 |
Ranked against other public high 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
114
-24 (-17%) vs 2020
+18% since 1990-91, when it was 97
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 | 114 | 14 | 8.1:1 | 38% (43) |
| 2023-24 | 114 | 14 | 8.1:1 | 36% (41) |
| 2022-23 | 135 | 15 | 9.0:1 | 44% (60) |
| 2020-21 | 138 | N/A | N/A | N/A |
| 2017-18 | 134 | 18 | 7.4:1 | 43% (57) |
| 2015-16 | 139 | 17 | 8.2:1 | 44% (61) |
| 2010-11 | 160 | 13 | 12.3:1 | 33% (52) |
| 2000-01 | 169 | 15 | 11.3:1 | N/A |
| 1990-91 | 97 | 9 | 10.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Armstrong High School.
Since 2017-18: students down 15% (134 to 114); teachers down 22% (18 to 14).
About Armstrong High School
Armstrong High School is a small high school in Armstrong, Illinois. Enrolled students number 114 students, in grades 9 through 12. Statewide, high schools in Illinois average about 834 students each.
Armstrong High School belongs to Armstrong Twp HSD 225.
The student body at Armstrong High School is 91% White. Enrollment also includes 5% Hispanic and 4% multiracial. Among people living in Vermilion County, the White share is about 78%. The school's diversity index is 16%, meaning two students picked at random have a 16% chance of belonging to different racial or ethnic groups.
The teaching staff at Armstrong High School is 14 full-time-equivalent teachers, and the ratio is 8.1:1. This ratio sits 5.7 below the 13.8:1 average for high schools in Illinois. The percentage of students eligible for free or reduced-price lunch is 38%. The rate at public schools in Vermilion County averages 71%, higher than here.
Test results at Armstrong High School are 21.8 points below what its student poverty level predicts. The average proficiency rate on state tests is 28.0%, compared with a predicted 49.7%, which ranks in the bottom 10% in Illinois.
Census estimates describe Vermilion County this way: the median household income is $56,877, 19% of adults hold a bachelor's degree or higher, and about 13% of residents live below the federal poverty line. Besides Armstrong High School, Vermilion County has 40 other public schools.
Nearest public school: Armstrong-Ellis Elementary School, about 0.3 miles away. A five-mile radius around the school includes 2 other public schools. Nearby schools average 44.4% on proficiency, and Armstrong High School is below that at 28.0%.
In the federal locale system, Armstrong High School is coded Rural: Distant, for schools in rural territory some distance from an urban area.
Armstrong High School's enrollment dropped from 138 in 2020-21 to 114 in 2024-25.
Community posts for Armstrong High School can cover enrollment questions, class placement, and PTA news. Alumni can share how the school prepared them.
Vermilion County at a glance
View full county profilePopulation
72,386
Census ACS
Median income
$56,877
Household, ACS
Bachelor's+
19%
Adults 25+
Poverty rate
13%
Below federal line
Schools in county
41
11,267 students
Quick facts
Related schools
Other schools in Armstrong
- Armstrong-Ellis Elementary SchoolElementary · 81 students
Other Armstrong High schools
One other US public school is named Armstrong High. Armstrong High School is the 2nd largest of the 2.
- Armstrong HighRichmond, VA · 709 students
Nearby schools
- Armstrong-Ellis Elementary School0.3 mi · 81
- Potomac Elementary School4.7 mi · 137
- Gifford Grade School7.5 mi · 151
- Prairieview-Ogden North Elementary School9.0 mi · 91
- Prairieview-Ogden Jr High School10.5 mi · 68
- Coop HS 712.2 mi · 109
Frequently asked questions
About Armstrong High SchoolHow large is Armstrong High School?
Armstrong High School enrolls approximately 114 students in grades 09-12.
What age range does Armstrong High School serve?
Armstrong High School serves students from grade 09 through grade 12.
How many teachers does Armstrong High School have?
Armstrong High School employs 14 FTE teachers, for a student-to-teacher ratio of 8.1:1.
What is the student diversity at Armstrong High School?
Student demographics at Armstrong High School are roughly 91% White, 5% Hispanic, 4% Two or more.
Is Armstrong High School public or private?
Armstrong High School is a public K-12 school, overseen by Armstrong Twp HSD 225.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.