Enrollment
375
High
DISTRICT 413 · STATE 468
SCHOOL COMMUNITY·GREENE COUNTY COMM SCHOOL DISTRICT·NCES 191521000918
Greene County High School
1901 North Grimmell, Jefferson, IA 50129 · (515) 386-2188 · Greene County
GRADES 09–12HIGH43-RURALTITLE IREGULAR SCHOOL375 STUDENTS
Student : Teacher
11.8:1
32 FTE teachers
DISTRICT 13.7:1 · STATE 17.3:1
Free / Reduced Lunch
40%
151 students
DISTRICT 47% · 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 | 102 | 27% |
| Grade 10 | 88 | 23% |
| Grade 11 | 94 | 25% |
| Grade 12 | 91 | 24% |
Student demographics
21%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 26% · 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 Greene County Comm School District. Attendance zones can vary; confirm enrollment with the district.
Test scores
ISASP 2024-25 . % ProficientEnglish Language Arts
77.2%
IA avg 73.6% . +5.3pp since 2023
Math
66.5%
IA avg 70.9% . +2.0pp since 2023
What this means: On the ISASP, Iowa's statewide test, about 77 of every 100 students at this school read and write at grade level and about 67 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 5 points since 2023, while math scores are up about 2 points.
ISASP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 77.2% | 66.5% |
| 2023-24 | 71.9% | 64.5% |
% 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
66.3%
composite math + reading, all grades
Predicted
71.8%
based on IA schools with similar FRL share
Beats by
-5.5pp
below demographic expectation
What this means: About 66% of students here test proficient in math and reading, compared with the roughly 72% 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 →
Where Greene County High School ranks
Among high schools| Measure | This school | In Iowa |
|---|---|---|
| State test proficiency ranked highest first | 66.3% | #234 of 313 |
| Math proficiency ranked highest first | 66.5% | #209 of 314 |
| Reading proficiency ranked highest first | 77.2% | #169 of 314 |
| Enrollment ranked largest first | 375 | #127 of 340 |
| Students per teacher ranked fewest first | 11.8:1 | #33 of 259 |
| Diversity index ranked most diverse first | 21.0% | #138 of 260 |
| Free and reduced lunch ranked highest share first | 40.3% | #111 of 320 |
| Enrollment change since 2017-18 ranked steepest decline first | -4.8% | #95 of 125 |
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.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
375
+17 (+5%) vs 2020
+12% since 1990-91, when it was 336
Student : Teacher
11.8:1
was 11.6:1
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 | 375 | 31.9 | 11.8:1 | 40% (151) |
| 2023-24 | 375 | 30.7 | 12.2:1 | 41% (154) |
| 2022-23 | 374 | 32.7 | 11.4:1 | 42% (156) |
| 2020-21 | 358 | 31 | 11.6:1 | 36% (130) |
| 2017-18 | 394 | 33 | 11.9:1 | 41% (162) |
| 2015-16 | 417 | 34 | 12.3:1 | 44% (184) |
| 2010-11 | 334 | 29 | 11.5:1 | 39% (130) |
| 2000-01 | 493 | 32 | 15.4:1 | 18% (88) |
| 1990-91 | 336 | 28 | 12.0:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Greene County High School.
About Greene County High School
In Jefferson, Iowa, Greene County High School is a small high school. School enrollment was 375 students in 2024-25, in grades 9 through 12.
In Greene County Comm School District, 3 schools enroll a combined 1,240 students.
Most students at Greene County High School are White: 89% of enrollment. Smaller groups are 7% Hispanic and 3% multiracial. Greene County High School has a diversity index of 21%, compared with 70% for all US public school students.
At Greene County High School, 31.9 full-time-equivalent teachers work with students, a ratio of about 11.8:1. That ratio is under the 17.3:1 average for high schools in Iowa. Students eligible for free or reduced-price lunch make up 40% of enrollment. That is 8 points below the 48% average for public schools in Greene County.
BeatsExpectations compares each school's average proficiency rate on state tests with a prediction based on free or reduced-price lunch eligibility. For Greene County High School, the prediction is 71.8% and the result is 66.3%.
Census Bureau estimates for Greene County show that median household income is about $63,409, 21% of adults hold a bachelor's degree or higher, and about 6% of residents live below the federal poverty line. A total of 5 public schools operate in Greene County, serving about 1,425 students.
Greene County Elementary is the closest public school, about 1.9 miles away in a straight line. Greene County High School is one of several public schools in the area, with 2 others within five miles. The school's 66.3% average proficiency ranks 7th among 9 nearby schools.
Greene County High School is in rural territory far from an urban area, a location NCES labels Rural: Remote.
Greene County High School saw enrollment rise 5% between 2020-21 and 2024-25.
To ask about school safety, transportation, and start times, start a discussion on this page. Posting is open to anyone connected to the school.
Greene County at a glance
View full county profilePopulation
8,688
Census ACS
Median income
$63,409
Household, ACS
Bachelor's+
21%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
5
1,425 students
Quick facts
Related schools
Other schools in Greene County Comm School District
- Greene County ElementaryElementary · 518 students
- Greene County Middle SchoolMiddle · 347 students
Other schools in Jefferson
- Greene County ElementaryElementary · 518 students
- Greene County Middle SchoolMiddle · 347 students
Nearby schools
- Greene County Elementary1.9 mi · 518
- Greene County Middle School2.2 mi · 347
- Paton-Churdan Elementary10.0 mi · 86
- Paton-Churdan Jr-Sr High School10.0 mi · 99
- Southeast Valley High School17.7 mi · 340
- Glidden-Ralston Elementary School17.7 mi · 227
Frequently asked questions
About Greene County High SchoolWhat is the total enrollment at Greene County High School?
Greene County High School enrolls approximately 375 students in grades 09-12.
Is Greene County High School an elementary, middle, or high school?
Greene County High School is a high school covering grades 09-12.
How many students per teacher at Greene County High School?
Approximately 11.8:1 students per teacher at Greene County High School.
What is the student diversity at Greene County High School?
Student demographics at Greene County High School are roughly 89% White, 7% Hispanic, 1% Black, 3% Two or more.
What district is Greene County High School in?
Greene County High School is part of Greene County Comm School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.