For the 2025 school year, there are 11 public elementary schools serving 1,491 students in Charles Mix County, SD.
The top ranked public elementary schools in Charles Mix County, SD are Cedar Grove Colony Elementary - 14, Platte - Geddes Elementary - 02 and Platte - Geddes Jr. High - 03. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Charles Mix County, SD public elementary schools have an average math proficiency score of 40% (versus the South Dakota public elementary school average of 43%), and reading proficiency score of 47% (versus the 49% statewide average). Elementary schools in Charles Mix County have an average ranking of 3/10, which is in the bottom 50% of South Dakota public elementary schools.
Minority enrollment is 60% of the student body (majority American Indian), which is more than the South Dakota public elementary school average of 36% (majority American Indian).
Best Public Elementary Schools in Charles Mix County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Cedar Grove Colony Elementary - 14
(Math: ≥80% | Reading: 60-79%)
Rank:
Rank:
10/
Top 5%10
36926 266th St
Platte, SD 57369
(605) 337-2468
Platte, SD 57369
(605) 337-2468
Grades: K-8
| 43 students
Rank: #22.
Platte - Geddes Elementary - 02
(Math: 75-79% | Reading: 65-69%)
Rank:
Rank:
10/
Top 10%10
401 S Iowa Av
Platte, SD 57369
(605) 337-2468
Platte, SD 57369
(605) 337-2468
Grades: K-5
| 223 students
Rank: #33.
Platte - Geddes Jr. High - 03
(Math: 55-59% | Reading: 60-64%)
Rank:
Rank:
9/
Top 20%10
400 Illinois Ave
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: 6-8
| 100 students
Rank: #44.
Lakeview Colony Elementary - 05
(Math: 40-59% | Reading: 60-79%)
Rank:
Rank:
8/
Top 30%10
28748 386th Ave
Lake Andes, SD 57356
(605) 487-7655
Lake Andes, SD 57356
(605) 487-7655
Grades: K-8
| 25 students
Rank: #55.
Platte Colony Elementary - 10
(Math: ≥50% | Reading: ≥50%)
Rank:
Rank:
8/
Top 30%10
35271 270 St
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: K-8
| 23 students
Rank: #66.
Wagner Elementary - 02
(Math: 35-39% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
101 Walnut Ave Sw
Wagner, SD 57380
(605) 384-3393
Wagner, SD 57380
(605) 384-3393
Grades: K-4
| 323 students
Rank: #77.
Andes Central Elementary - 02
(Math: 30-34% | Reading: 25-29%)
Rank:
Rank:
2/
Bottom 50%10
1001 High St
Lake Andes, SD 57356
(605) 487-5243
Lake Andes, SD 57356
(605) 487-5243
Grades: PK-5
| 179 students
Rank: #88.
Wagner Middle School - 03
(Math: 21% | Reading: 44%)
Rank:
Rank:
2/
Bottom 50%10
101 Walnut Ave Sw
Wagner, SD 57380
(605) 384-3913
Wagner, SD 57380
(605) 384-3913
Grades: 5-8
| 274 students
Rank: #99.
Andes Central Middle School - 04
(Math: 20-29% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
1001 High St
Lake Andes, SD 57356
(605) 487-5207
Lake Andes, SD 57356
(605) 487-5207
Grades: 6-8
| 56 students
Rank: n/an/a
100 South Main
Marty, SD 57361
(605) 384-2212
Marty, SD 57361
(605) 384-2212
Grades: K-12
| 245 students
Rank: n/an/a
400 S Illinois Ave
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: 6-8
| n/a students
Charles Mix County Public Schools (Closed)
School
Location
Grades
Students
1001 High St
Lake Andes, SD 57356
(605) 487-7671
Lake Andes, SD 57356
(605) 487-7671
Grades: 9-12
| 62 students
400 Illinois Ave
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: n/a
| n/a students
Po Box 197
Geddes, SD 57342
(605) 337-3382
Geddes, SD 57342
(605) 337-3382
Grades: PK-6
| 47 students
Po Box 197
Geddes, SD 57342
(605) 337-3382
Geddes, SD 57342
(605) 337-3382
Grades: 7-8
| 12 students
Po Box 140
Platte, SD 57369
(605) 337-2468
Platte, SD 57369
(605) 337-2468
Grades: K-8
| 6 students
28949 377th Ave
Lake Andes, SD 57356
(605) 487-7655
Lake Andes, SD 57356
(605) 487-7655
Grades: K-8
| 22 students
Po Box 140
Platte, SD 57369
(605) 337-2468
Platte, SD 57369
(605) 337-2468
Grades: K-8
| 24 students
35271 270th St
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: n/a
| n/a students
Po Box 140
Platte, SD 57369
(605) 337-2468
Platte, SD 57369
(605) 337-2468
Grades: PK-6
| 177 students
Po Box 140
Platte, SD 57369
(605) 337-3391
Platte, SD 57369
(605) 337-3391
Grades: 7-8
| 55 students
Frequently Asked Questions
What are the top ranked public elementary schools in Charles Mix County, SD?
The top ranked public elementary schools in Charles Mix County, SD include Cedar Grove Colony Elementary - 14, Platte - Geddes Elementary - 02 and Platte - Geddes Jr. High - 03.
How many public elementary schools are located in Charles Mix County?
11 public elementary schools are located in Charles Mix County.
What is the racial composition of students in Charles Mix County?
Charles Mix County public elementary schools minority enrollment is 60% of the student body (majority American Indian), which is more than the South Dakota public elementary schools average of 36% (majority American Indian).
Recent Articles
Opinion: Handcuffing in Public Schools is a Gateway to More Violence
Some districts are banning handcuffing, while others are cuffing kindergarteners simply throwing a temper tantrum. Read this editorial to see why this author believes slapping the cuffs on children鈥檚 wrists only leads to more behavior issues and violence in their adult lives.
Whooping Cough: Should Vaccinations be Required for Public School Enrollment?
Whopping cough is making a comeback, especially amongst children, prompting health officials to encourage pertussis vaccines and boosters. However, should the pertussis vaccine be required for public school enrollment? Learn about current proposed laws and its ramifications.
What are Common Core Standards and Why Do We Need Them?
With schools nationwide adopting common core standards, we鈥檒l take a look at what they are, their benefits, and how they will change the face of public education.
