Enrollment
160
High
DISTRICT 168 · STATE 468
SCHOOL COMMUNITY·LYNNVILLE-SULLY COMM SCHOOL DISTRICT·NCES 191803001031
Lynnville-Sully High School
12476 Hwy F62 E, Sully, IA 50251 · (641) 594-4445 · Jasper County
GRADES 09–12HIGH43-RURALREGULAR SCHOOL160 STUDENTS
A
allk12 Grade
Scored higher than 88% of Iowa public high schools
- ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Iowa public high schools
Student : Teacher
14.7:1
11 FTE teachers
DISTRICT 14.1:1 · STATE 17.3:1
Free / Reduced Lunch
23%
36 students
DISTRICT 25% · STATE 41%
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 | 46 | 29% |
| Grade 10 | 42 | 26% |
| Grade 11 | 43 | 27% |
| Grade 12 | 29 | 18% |
Student demographics
5%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 9% · STATE 48% · 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 Lynnville-Sully Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
87.3%
IA avg 73.6% . +1.6pp since 2023
Math
84.9%
IA avg 70.9% . +0.1pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 87 of every 100 students at this school read and write at grade level and about 85 of 100 do math at grade level. Across all Iowa schools, those numbers are about 74 and 71. Reading and writing scores are up about 2 points since 2023, while math scores have held steady.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 87.3% | 84.9% |
| 2023-24 | 85.7% | 84.8% |
% Proficient, all students and all tested grades.
Source: ISASP. 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
84.0%
composite math + reading, all grades
Predicted
80.7%
based on IA schools with similar FRL share
Beats by
+3.3pp
above demographic expectation
What this means: About 84% of students here test proficient in math and reading, compared with the roughly 81% typical for Iowa 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 Iowa'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 Lynnville-Sully High School
Lynnville-Sully High School's state test result (84.0% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Lynnville-Sully High School this school | 160 | 22.5% | 84.0% |
| North-Linn Senior High School Troy Mills | 158 | 24.7% | 78.8% |
| St Ansgar High School St Ansgar | 166 | 23.5% | 84.6% |
| Ogden High School Ogden | 234 | 20.9% | 73.1% |
| Springville Secondary School Springville | 184 | 23.9% | 78.8% |
| Stanton High School Stanton | 153 | 26.1% | 76.3% |
Matched among Iowa 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 Lynnville-Sully High School ranks
Among high schools| Measure | This school | In Iowa | In Jasper County |
|---|---|---|---|
| State test proficiency ranked highest first | 84.0% | #26 of 313 | N/A |
| Math proficiency ranked highest first | 84.9% | #19 of 314 no change | N/A |
| Reading proficiency ranked highest first | 87.3% | #35 of 314 ▲ 17 | N/A |
| Enrollment ranked largest first | 160 | #298 of 340 | #5 of 6 |
| Free and reduced lunch ranked highest share first | 22.5% | #270 of 320 | N/A |
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
160
-10 (-6%) vs 2020
+8% since 1990-91, when it was 148
Student : Teacher
14.7:1
was 17.0:1
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 | 160 | 10.9 | 14.7:1 | 23% (36) |
| 2023-24 | 156 | 10.9 | 14.3:1 | 19% (30) |
| 2022-23 | 166 | 11 | 15.2:1 | 19% (32) |
| 2020-21 | 170 | 10 | 17.0:1 | 21% (36) |
| 2017-18 | 153 | 11.1 | 13.8:1 | 22% (34) |
| 2015-16 | 146 | 10 | 14.6:1 | 20% (29) |
| 2010-11 | 173 | 13 | 13.3:1 | 16% (28) |
| 2000-01 | 183 | 15 | 12.2:1 | 10% (18) |
| 1990-91 | 148 | 13 | 11.4:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Lynnville-Sully High School.
Since 2017-18: students up 5% (153 to 160); teachers down 2% (11.1 to 10.9).
About Lynnville-Sully High School
Lynnville-Sully High School is a high school in Sully, Iowa, and it is part of Lynnville-Sully Comm School District. It enrolls 160 students in 2024-25. The grades offered are 9 through 12. By comparison, high schools in Iowa enroll about 468 students on average.
Lynnville-Sully Comm School District has 505 students in 3 schools, and Lynnville-Sully High School is one of those schools.
Lynnville-Sully High School is 97% White by enrollment. Measured by the diversity index, the student body scores 5%.
Based on 10.9 full-time-equivalent teachers, Lynnville-Sully High School has a ratio of 14.7:1. The gap from the 17.3:1 average for high schools in Iowa is 2.6 students per teacher. Eligibility for free or reduced-price lunch stands at 23%. Compared with the 40% average for public schools in Jasper County, the school's rate is lower.
On the allk12 Grade, Lynnville-Sully High School lands at A, ahead of 88% of Iowa public high schools.
Based on student poverty, the model expects 80.7% at Lynnville-Sully High School; the school's average proficiency rate across its state test results is 84.0%.
The school is in Jasper County, where median household income comes to about $71,311, 20% of adults hold a bachelor's degree or higher, and about 5% of people live in poverty. Jasper County's 18 public schools enroll about 5,668 students and include Lynnville-Sully High School.
Lynnville-Sully High School's nearest public school is Lynnville-Sully Middle School (less than a tenth of a mile). The count of other public schools within five miles is 2. Ranked by average proficiency, Lynnville-Sully High School places 4th out of 9 schools in its immediate area.
For locale, NCES codes Lynnville-Sully High School as Rural: Remote.
From 2020-21 to 2024-25, enrollment fell from 170 to 160, a 6% decline. The student-to-teacher ratio dropped from 17.0:1 in 2020-21 to 14.7:1 in 2024-25.
You can use this page to share news and ask questions about fundraisers, report cards, and school supplies. You can also rate the school on this page.
Jasper County at a glance
View full county profilePopulation
37,954
Census ACS
Median income
$71,311
Household, ACS
Bachelor's+
20%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
18
5,668 students
Quick facts
Related schools
Other schools in Lynnville-Sully Comm School District
- Lynnville-Sully Elementary SchoolElementary · 224 students
- Lynnville-Sully Middle SchoolMiddle · 121 students
Other schools in Sully
- Lynnville-Sully Elementary SchoolElementary · 224 students
- Lynnville-Sully Middle SchoolMiddle · 121 students
Nearby schools
- Lynnville-Sully Middle School0.0 mi · 121
- Lynnville-Sully Elementary School0.0 mi · 224
- Grinnell Community Middle School12.2 mi · 420
- Aurora Heights Elementary School12.2 mi · 260
- Davis Elementary School12.3 mi · 213
- Lincoln Elementary School12.4 mi · 254
Frequently asked questions
About Lynnville-Sully High SchoolHow large is Lynnville-Sully High School?
Lynnville-Sully High School enrolls approximately 160 students in grades 09-12.
What grades does Lynnville-Sully High School serve?
Lynnville-Sully High School serves grades 09-12.
How many students per teacher at Lynnville-Sully High School?
Approximately 14.7:1 students per teacher at Lynnville-Sully High School.
How diverse is Lynnville-Sully High School?
Lynnville-Sully High School reports a student body of 97% White, 1% Hispanic, 2% Black.
Who oversees Lynnville-Sully High School?
Lynnville-Sully High School is overseen by Lynnville-Sully Comm School District in Jasper County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.