Enrollment
124
High
DISTRICT 209 · STATE 410
SCHOOL COMMUNITY·LYNDON·NCES 200900001008
Lyndon High
421 East 6th St, Lyndon, KS 66451 · (785) 828-4911 · Osage County
GRADES 09–12HIGH42-RURALREGULAR SCHOOL124 STUDENTS
C-
allk12 Grade
Scored higher than 21% of Kansas public high schools
- C+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- DBeats 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 Kansas public high schools
Student : Teacher
12.4:1
10 FTE teachers
DISTRICT 12.7:1 · STATE 11.9:1
Free / Reduced Lunch
31%
39 students
DISTRICT 39% · STATE 51%
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 | 33 | 27% |
| Grade 10 | 27 | 22% |
| Grade 11 | 33 | 27% |
| Grade 12 | 30 | 24% |
| Ungraded | 1 | 1% |
Student demographics
19%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 19% · STATE 58% · 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
Feeds from
Based on grade levels within Lyndon. Attendance zones can vary; confirm enrollment with the district.
Test scores
KAP 2024-25 . % Meeting + ExceedingEnglish Language Arts
34.5%
KS avg 44.5%
Math
37.9%
KS avg 38.8%
What this means: On the KAP, Kansas's statewide test, about 35 of every 100 students at this school read and write at grade level and about 38 of 100 do math at grade level. Across all Kansas schools, those numbers are about 45 and 39.
KAP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 34.5% | 37.9% |
| 2023-24 | 35.5% | 16.1% |
% Meeting + Exceeding, all students and all tested grades. Kansas set new KAP cut scores in spring 2025, so results from 2023-24 and earlier are not comparable with later years.
Source: KAP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of KS schools after controlling for student poverty
Actual proficiency
25.0%
composite math + reading, all grades
Predicted
47.1%
based on KS schools with similar FRL share
Beats by
-22.2pp
below demographic expectation
What this means: About 25% of students here test proficient in math and reading, below the roughly 47% typical for Kansas 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 Lyndon High
Lyndon High's state test result (25.0% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Lyndon High this school | 124 | 31.5% | 25.0% |
| Valley Falls High Valley Falls | 122 | 29.5% | 25.5% |
| Hodgeman County High Jetmore | 109 | 33.9% | 34.7% |
| Wabaunsee Sr High Alma | 115 | 28.7% | 36.1% |
| Jefferson Co North High Winchester | 117 | 31.6% | 28.1% |
| Moundridge High Moundridge | 160 | 35.0% | 34.8% |
Matched among Kansas 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 Lyndon High ranks
Among high schools| Measure | This school | In Kansas |
|---|---|---|
| State test proficiency ranked highest first | 25.0% | #174 of 262 |
| Math proficiency ranked highest first | 37.9% | #106 of 262 |
| Reading proficiency ranked highest first | 34.5% | #166 of 262 |
| Enrollment ranked largest first | 124 | #236 of 332 |
| Free and reduced lunch ranked highest share first | 31.5% | #205 of 263 |
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
124
-1 (-1%) vs 2020
+19% since 1990-91, when it was 104
Student : Teacher
12.4:1
was 12.5:1
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 | 124 | 10 | 12.4:1 | 31% (39) |
| 2023-24 | 125 | 12.3 | 10.2:1 | 31% (39) |
| 2022-23 | 133 | 11.9 | 11.2:1 | 26% (35) |
| 2020-21 | 125 | 10 | 12.5:1 | 22% (28) |
| 2017-18 | 140 | 11.1 | 12.6:1 | 36% (50) |
| 2015-16 | 128 | 13 | 9.8:1 | 27% (35) |
| 2010-11 | 162 | 12 | 13.5:1 | 26% (42) |
| 2000-01 | 175 | 12 | 14.6:1 | 15% (26) |
| 1990-91 | 104 | 9 | 11.6:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lyndon High.
Since 2017-18: students down 11% (140 to 124); teachers down 10% (11.1 to 10).
About Lyndon High
Lyndon High is a small high school with its address in Lyndon, Kansas. The school counts 124 students across grades 9 through 12. The typical figure for high schools in Kansas is about 410 students.
Lyndon (2 schools, 418 students) runs Lyndon High.
The student body at Lyndon High is 90% White. Other groups make up 7% Hispanic and 2% multiracial. The county population is about 93% White, within a few points of the school. The school's diversity index is 19%, meaning two students picked at random have a 19% chance of belonging to different racial or ethnic groups.
The ratio of students to teachers is 12.4:1, with 10 full-time-equivalent teachers on staff. That is close to the 11.9:1 average for high schools in Kansas. The percentage of students eligible for free or reduced-price lunch is 31%. That is 17 points below the 48% average for public schools in Osage County.
The allk12 Grade for Lyndon High is C-. Compared with Kansas public high schools, the school scored higher than 21% on a mix of test scores, poverty-adjusted results, and recent trend.
Lyndon High is a bottom-10% school in Kansas on BeatsExpectations, with an actual average proficiency rate on state tests of 25.0% against a predicted 47.1%.
Lyndon High is located in Osage County, where the median household income is $74,467, the share of adults with a bachelor's degree or higher is 22%, and roughly 6% of residents are in poverty. Besides Lyndon High, Osage County has 12 other public schools.
The closest public school to Lyndon High is Lyndon Elem, less than a tenth of a mile away. Lyndon High is one of several public schools in the area, with 7 others within ten miles. The school's 25.0% average proficiency ranks 8th among 9 nearby schools.
Its NCES locale code is Rural: Distant: the school is in rural territory some distance from an urban area.
In 2020-21, Lyndon High enrolled 125; in 2024-25, 124.
Parents and students can post about sports tryouts, band and choir, and theater at Lyndon High. Alumni can share how the school prepared them.
Osage County at a glance
View full county profilePopulation
15,744
Census ACS
Median income
$74,467
Household, ACS
Bachelor's+
22%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
13
2,587 students
Quick facts
Related schools
Nearby schools
- Lyndon Elem0.1 mi · 294
- Marais Des Cygnes Valley High7.2 mi · 53
- Marais Des Cygnes Valley Middle7.2 mi · 35
- Osage City Middle School8.1 mi · 134
- Osage City High8.1 mi · 218
- Osage City Elem8.2 mi · 340
Frequently asked questions
About Lyndon HighHow large is Lyndon High?
Lyndon High enrolls approximately 124 students in grades 09-12.
Is Lyndon High an elementary, middle, or high school?
Lyndon High is a high school covering grades 09-12.
What is the student-teacher ratio at Lyndon High?
The student-to-teacher ratio at Lyndon High is approximately 12.4:1 (10 FTE teachers).
How diverse is Lyndon High?
Lyndon High reports a student body of 90% White, 7% Hispanic, 1% Black, 2% Two or more.
Who oversees Lyndon High?
Lyndon High is overseen by Lyndon in Osage County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.