Total enrollment
1,966
+215 (+12%) vs SY 2020-21
Charles Mix County
South Dakota · Public K-12
Charles Mix County is one of South Dakota's public-school counties, with 14 schools serving about 1,966 students (7 elementary, 3 middle, and 3 high). Median household income in the county is roughly $64,038.
4-year change in Charles Mix County
SY 2020-21 vs SY 2024-25School count
14
+1 (+8%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Charles Mix County ranks
Among counties| Measure | This county | In South Dakota | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 39.5% | #21 of 22 | N/A |
| Enrollment ranked largest first | 1,966 | #19 of 31 | #2,233 of 2,745 |
| Number of schools ranked most first | 14 | #14 of 31 | N/A |
| Students per teacher ranked fewest first | 10.8:1 | #2 of 31 | #245 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 80.4% | #4 of 31 | #486 of 2,526 |
| Diversity index ranked most diverse first | 60.0% | #4 of 30 | #563 of 2,707 |
Counties need at least 3 schools and 1,000 students to be ranked. Test proficiency is ranked within the state only, since each state gives a different test. Each rank links to the full list.
Charles Mix County school rankings
Residents
9,281
all ages · ACS 5-yr
Schools
14
5 districts
Enrollment
1,966
students · NCES CCD
Median income
$64,038
Below South Dakota avg
Free/reduced lunch
80.5%
Above South Dakota avg
Elementary
7
920 students
Middle
3
428 students
High
3
398 students
Combined / other
1
220 students
LARGEST DISTRICT
Wagner Community School District 11-4
919 students · 5 districts in Charles Mix County
County vs. school enrollment demographics
Left bar is the racial makeup of Charles Mix County residents (Census ACS 5-year). Right bar is the enrollment-weighted makeup of public schools in the county (NCES CCD). NCES systematically under-reports Hispanic, Pacific Islander, and Native American enrollment for many schools; where the resident share is meaningful but the reported school share is zero, we mark the school bar "not reported".
County residents
School enrollment
Bachelor's+
25.7%
adults 25+
Poverty rate
15.5%
ACS 5-year
Unemployment
5.8%
civilian labor
Median age
36
30.7% under 18
Test scores in Charles Mix County
Latest 2024-25 ELA proficiency, 6 schools ranked. South Dakota state average: 50.4%.
Top 5 schools (ELA)
- Platte - Geddes Elementary - 02· 64.8%
- Platte - Geddes Jr. High - 03· 58.2%
- Wagner Middle School - 03· 38.1%
- Wagner Elementary - 02· 29.7%
- Andes Central Elementary - 02· 26.8%
Lowest 5 schools (ELA)
- Andes Central Middle School - 04· 17.8%
- Andes Central Elementary - 02· 26.8%
- Wagner Elementary - 02· 29.7%
- Wagner Middle School - 03· 38.1%
- Platte - Geddes Jr. High - 03· 58.2%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Wagner Elementary - 02 | Wagner | Elementary | KG-04 | 333 | · |
| Wagner Middle School - 03 | Wagner | Middle | 05-08 | 283 | · |
| Platte - Geddes Elementary - 02 | Platte | Elementary | KG-05 | 230 | · |
| Marty Indian School | Marty | Combined | KG-12 | 220 | · |
| Wagner High School - 01 | Wagner | High | 09-12 | 201 | · |
| Andes Central Elementary - 02 | Lake Andes | Elementary | PK-05 | 184 | · |
| Platte - Geddes High School - 01 | Platte | High | 09-12 | 132 | · |
| Early Learning Center - 04 | Wagner | Elementary | PK-PK | 102 | · |
| Platte - Geddes Jr. High - 03 | Platte | Middle | 06-08 | 94 | · |
| Andes Central High School - 01 | Lake Andes | High | 09-12 | 65 | · |
| Andes Central Middle School - 04 | Lake Andes | Middle | 06-08 | 51 | · |
| Clearfield Colony Elementary - 07 | Delmont | Elementary | KG-08 | 26 | · |
| Lakeview Colony Elementary - 05 | Lake Andes | Elementary | KG-08 | 23 | · |
| Platte Colony Elementary - 10 | Academy | Elementary | KG-08 | 22 | · |
Cities in Charles Mix County
About Charles Mix County
Charles Mix County is a compact county of about 9,281 residents in South Dakota. Its public-school system hosts approximately 1,966 students across 14 schools.
Stepping back, census numbers show typical household earnings sit around $64,038, 26% of adults hold a bachelor's degree or higher, and roughly 16% of residents live below the federal poverty line. That income level is 9% meaningfully below the South Dakota median.
On the school-mix side, Charles Mix County consists of 7 elementary schools (920 students), 3 middle schools (428), 3 high schools (398), and 1 combined or other schools.
Wagner Community School District 11-4 dominates the local landscape, accounting for roughly 919 students on its own.
Five-year track record. Across the same 4-year window, public-school enrollment expanded 12%: 1,751 students in SY 2020-21 versus 1,966 in SY 2024-25. The school count climbed from 13 to 14 across the same 4-year window.
On this page, the community for Charles Mix County discusses school events, board meetings, and seasonal calendars. Parents, students, and educators in the area can post or comment.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data