Enrollment
94
Middle
DISTRICT 104 · STATE 187
SCHOOL COMMUNITY·PLATTE - GEDDES SCHOOL DISTRICT 11-5·NCES 468043801250
Platte - Geddes Jr. High - 03
400 Illinois Ave, Platte, SD 57369 · (605) 337-3391 · Charles Mix County
GRADES 06–08MIDDLE43-RURALREGULAR SCHOOL94 STUDENTS
A-
allk12 Grade
Scored higher than 80% of South Dakota public middle schools
- A-Test 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.
- ·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 South Dakota public middle schools
Student : Teacher
12.8:1
7 FTE teachers
DISTRICT 11.5:1 · STATE 13.4:1
Free / Reduced Lunch
17%
16 students
DISTRICT 18% · STATE 42%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 37 | 39% |
| Grade 7 | 26 | 28% |
| Grade 8 | 31 | 33% |
Student demographics
23%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 19% · STATE 53% · 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
Students here typically continue to
Platte - Geddes Jr. High - 03→Platte - Geddes High School - 01
Feeds from
Based on grade levels within Platte - Geddes School District 11-5. Attendance zones can vary; confirm enrollment with the district.
QUIET COMMUNITY
Be the first to start a discussion at Platte - Geddes Jr. High - 03.
START A DISCUSSIONTest scores
SD Smarter Balanced 2024-25 . % ProficientEnglish Language Arts
58.2%
SD avg 50.3% . +1.2pp since 2022
Math
57.1%
SD avg 47.5% . +1.0pp since 2022
What this means: On the SD Smarter Balanced, South Dakota's statewide test, about 58 of every 100 students at this school read and write at grade level and about 57 of 100 do math at grade level. Across all South Dakota schools, those numbers are about 50 and 47. Reading and writing scores are up about 1 points since 2022, while math scores are up about 1 points.
SD Smarter Balanced results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 58.2% | 57.1% |
| 2023-24 | 62.2% | 52.0% |
| 2022-23 | 57.0% | 56.1% |
% Proficient, all students and all tested grades.
Source: SD Smarter Balanced. 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
58.5%
composite math + reading, all grades
Predicted
56.0%
based on SD schools with similar FRL share
Beats by
+2.5pp
above demographic expectation
What this means: About 59% of students here test proficient in math and reading, compared with the roughly 56% typical for South Dakota 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 South Dakota'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 Platte - Geddes Jr. High - 03
Platte - Geddes Jr. High - 03's state test result (58.5% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Platte - Geddes Jr. High - 03 this school | 94 | 17.0% | 58.5% |
| Hanson Middle School - 02 Alexandria | 71 | 21.1% | 61.9% |
| Baltic Middle School - 03 Baltic | 110 | 19.1% | 52.6% |
| Chester Middle School - 03 Chester | 67 | 19.4% | 47.2% |
| Lennox Jr. High - 08 Lennox | 169 | 15.4% | 66.8% |
| Garretson Middle School - 03 Garretson | 105 | 19.0% | 46.5% |
Matched among South Dakota middle 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 Platte - Geddes Jr. High - 03 ranks
Among middle schools| Measure | This school | In South Dakota |
|---|---|---|
| Enrollment ranked largest first | 94 | #68 of 165 |
Ranked against other public middle 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
94
+8 (+9%) vs 2020
+74% since 2010-11, when it was 54
Student : Teacher
12.8:1
was 12.3:1
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 | 94 | 7.3 | 12.8:1 | 17% (16) |
| 2023-24 | 100 | 7.6 | 13.2:1 | 17% (17) |
| 2022-23 | 109 | 7.3 | 14.9:1 | 17% (18) |
| 2020-21 | 86 | 7 | 12.3:1 | 26% (22) |
| 2017-18 | 65 | 4.7 | 13.9:1 | 17% (11) |
| 2015-16 | 57 | 6 | 9.5:1 | 19% (11) |
| 2010-11 | 54 | 5 | 10.8:1 | 26% (14) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Platte - Geddes Jr. High - 03.
Since 2017-18: students up 45% (65 to 94); teachers up 57% (4.7 to 7.3).
About Platte - Geddes Jr. High - 03
A small middle school in Platte, South Dakota, Platte - Geddes Jr. High - 03 is part of Platte - Geddes School District 11-5. The school counted 94 students in 2024-25, covering grades 6 through 8. That puts enrollment 50% below the 187-student average for middle schools in South Dakota.
Platte - Geddes School District 11-5 has 5 schools; together they serve 522 students.
The share of students at Platte - Geddes Jr. High - 03 who are White is 87%. Smaller groups are 9% multiracial and 2% Native American. County-wide, 64% of Charles Mix County residents are White. A diversity index of 23% means there is a 23% chance two randomly chosen students at Platte - Geddes Jr. High - 03 are from different groups.
Its staff includes 7.3 full-time-equivalent teachers, for about 12.8 students per teacher. The ratio is within a point of the 13.4:1 average for middle schools in South Dakota. Platte - Geddes Jr. High - 03 has a free or reduced-price lunch rate of 17%. That is 63 points below the 80% average for public schools in Charles Mix County.
Among South Dakota public middle schools, Platte - Geddes Jr. High - 03 outscored 80%, which works out to an A- on the allk12 Grade.
The school's average proficiency rate across its state test results is 58.5%. For its free or reduced-price lunch share, the predicted value is 56.0%.
In Charles Mix County, where the school is located, the median household earns about $64,038 a year, roughly 26% of adults have a four-year degree or more, and about 16% of residents live below the federal poverty line. Counting Platte - Geddes Jr. High - 03, Charles Mix County has 14 public schools.
Less than a tenth of a mile separates Platte - Geddes Jr. High - 03 from the closest public school, Platte - Geddes High School - 01. A five-mile radius around the school includes 2 other public schools. Ranking the closest schools with test data puts Platte - Geddes Jr. High - 03 at 2nd of 5.
Platte - Geddes Jr. High - 03 is coded as Rural: Remote in federal locale data.
From 86 students in 2020-21, enrollment increased to 94 by 2024-25.
Platte - Geddes Jr. High - 03 has a community page on allk12 for topics such as special education services, counseling, and support programs. You can also rate the school on this page.
Charles Mix County at a glance
View full county profilePopulation
9,281
Census ACS
Median income
$64,038
Household, ACS
Bachelor's+
26%
Adults 25+
Poverty rate
16%
Below federal line
Schools in county
14
1,966 students
Quick facts
Related schools
Other schools in Platte - Geddes School District 11-5
- Platte - Geddes Elementary - 02Elementary · 230 students
- Platte - Geddes High School - 01High · 132 students
- Cedar Grove Colony Elementary - 14Elementary · 44 students
- Platte Colony Elementary - 10Elementary · 22 students
Other schools in Platte
- Platte - Geddes Elementary - 02Elementary · 230 students
- Platte - Geddes High School - 01High · 132 students
- Cedar Grove Colony Elementary - 14Elementary · 44 students
Nearby schools
- Platte - Geddes High School - 010.0 mi · 132
- Platte - Geddes Elementary - 020.1 mi · 230
- Cedar Grove Colony Elementary - 1410.1 mi · 44
- Platte Colony Elementary - 1015.4 mi · 22
- Grass Ranch Colony Elementary - 1318.1 mi · 53
- Grass Ranch Colony High School - 1518.1 mi · 16
Frequently asked questions
About Platte - Geddes Jr. High - 03How many students attend Platte - Geddes Jr. High - 03?
Platte - Geddes Jr. High - 03 enrolls approximately 94 students in grades 06-08.
What grades does Platte - Geddes Jr. High - 03 serve?
Platte - Geddes Jr. High - 03 serves grades 06-08.
What is the student-teacher ratio at Platte - Geddes Jr. High - 03?
The student-to-teacher ratio at Platte - Geddes Jr. High - 03 is approximately 12.8:1 (7 FTE teachers).
How diverse is Platte - Geddes Jr. High - 03?
Platte - Geddes Jr. High - 03 reports a student body of 87% White, 1% Hispanic, 1% Asian, 9% Two or more.
Is Platte - Geddes Jr. High - 03 public or private?
Platte - Geddes Jr. High - 03 is a public K-12 school, overseen by Platte - Geddes School District 11-5.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.