Total enrollment
672
+295 (+78%) vs SY 2017-18
Lyman County
South Dakota · Public K-12
Lyman County runs 4 public K-12 schools per the latest NCES counts, with an average school size of about 168 students. The level mix is 1 elementary, 1 middle, and 1 high schools.
7-year change in Lyman County
SY 2017-18 vs SY 2024-25School count
4
0 (0%) vs SY 2017-18
Source: NCES Common Core of Data, enrollment-weighted demographic averages
Schools
4
2 districts
Enrollment
672
NCES CCD
Median income
$67,143
Below South Dakota avg
Free/reduced lunch
75.0%
Above South Dakota avg
Elementary
1
171 students
Middle
1
84 students
High
1
80 students
Combined / other
1
337 students
LARGEST DISTRICT
Lower Brule Day School
337 students · 2 districts in Lyman County
County vs. school enrollment demographics
Left bar is the racial makeup of Lyman 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+
24.5%
adults 25+
Poverty rate
18.3%
ACS 5-year
Unemployment
4.0%
civilian labor
Median age
36
28.0% under 18
Test scores in Lyman County
Latest 2024-25 ELA proficiency, 2 schools ranked. South Dakota state average: 50.4%.
Top 2 schools (ELA)
- Lyman Middle School - 02· 46.3%
- Lyman Elementary - 04· 43.1%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Lower Brule Day School | Lower Brule | Combined | KG-12 | 337 | · |
| Lyman Elementary - 04 | Kennebec | Elementary | PK-05 | 171 | · |
| Lyman Middle School - 02 | Presho | Middle | 06-08 | 84 | · |
| Lyman High School - 01 | Presho | High | 09-12 | 80 | · |
Cities in Lyman County
About Lyman County
Lyman County is a small South Dakota county of about 3,724 residents, home to 4 public schools and roughly 672 students.
Looking at the wider area, census numbers show median household income runs near $67,143, 25% of adults hold a bachelor's degree or higher, and roughly 18% of residents live below the federal poverty line.
On the level-by-level breakdown, Lyman County is made up of 1 elementary school (171 students), 1 middle school (84), 1 high school (80), and 1 combined or other schools.
The largest single district in Lyman County is Lower Brule Day School, which alone enrolls about 337 students.
Five-year track record. Across the same 7-year window, public-school enrollment climbed 78%: 377 students in SY 2017-18 versus 672 in SY 2024-25.
Within the allk12 community for this area, the community for Lyman County discusses sports rivalries, cross-district programs, and shared facilities. Posts come from current and former families, staff, and alumni.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data