Total enrollment
1,072
+15 (+1%) vs SY 2020-21
Grant County
South Dakota · Public K-12
On the public-school side, Grant County (South Dakota) totals 7 K-12 schools and roughly 1,072 students. Median household income is around $75,028. The level mix is 4 elementary, 2 middle, and 1 high schools.
4-year change in Grant County
SY 2020-21 vs SY 2024-25School count
7
+1 (+17%) vs SY 2020-21
Source: NCES Common Core of Data, enrollment-weighted demographic averages
How Grant County ranks
Among counties| Measure | This county | In South Dakota | In the US |
|---|---|---|---|
| State test proficiency ranked highest first | 60.2% | #1 of 22 | N/A |
| Enrollment ranked largest first | 1,072 | #29 of 31 | #2,706 of 2,745 |
| Number of schools ranked most first | 7 | #29 of 31 | N/A |
| Students per teacher ranked fewest first | 11.6:1 | #8 of 31 | #416 of 2,655 |
| Free or reduced-price lunch share ranked highest first | 34.4% | #17 of 31 | #2,287 of 2,526 |
| Diversity index ranked most diverse first | 33.6% | #13 of 30 | #1,688 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.
Residents
7,563
all ages · ACS 5-yr
Schools
7
3 districts
Enrollment
1,072
students · NCES CCD
Median income
$75,028
Above South Dakota avg
Free/reduced lunch
34.4%
Below South Dakota avg
Elementary
4
498 students
Middle
2
241 students
High
1
333 students
Combined / other
0
schools
LARGEST DISTRICT
Milbank School District 25-4
973 students · 3 districts in Grant County
County vs. school enrollment demographics
Left bar is the racial makeup of Grant 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+
25.3%
adults 25+
Poverty rate
8.3%
ACS 5-year
Unemployment
2.7%
civilian labor
Median age
45
22.2% under 18
Test scores in Grant County
Latest 2024-25 ELA proficiency, 2 schools ranked. South Dakota state average: 50.4%.
Top 2 schools (ELA)
- Milbank Middle School - 02· 64.2%
- Milbank Elementary - 03· 64.1%
| Name | City | Level | Grades | Enrollment | Rating |
|---|---|---|---|---|---|
| Milbank Elementary - 03 | Milbank | Elementary | PK-05 | 408 | · |
| Milbank High School - 01 | Milbank | High | 09-12 | 333 | · |
| Milbank Middle School - 02 | Milbank | Middle | 06-08 | 222 | · |
| Big Stone City Elementary - 01 | Big Stone City | Elementary | PK-05 | 60 | · |
| Sunrise Colony - 15 | Summit | Elementary | KG-08 | 20 | · |
| Big Stone City Middle School - 03 | Big Stone City | Middle | 06-08 | 19 | · |
| Blue Sky Colony - 04 | Milbank | Elementary | KG-08 | 10 | · |
Cities in Grant County
About Grant County
In South Dakota, Grant County is a rural-scale county of about 7,563 residents. 7 public schools across the county instructs about 1,072 students between them.
Looking at the broader picture, census numbers show the median household earns about $75,028 a year, 25% of adults hold a bachelor's degree or higher, and roughly 8% of residents live below the federal poverty line. That income level is 7% above the South Dakota median.
For a sense of the school types, Grant County is made up of 4 elementary schools (498 students), 2 middle schools (241), and 1 high school (333).
The largest single district in Grant County is Milbank School District 25-4, which alone enrolls about 973 students.
Looking at the last 4 years. Combined enrollment now sits at 1,072 students, remained close to its prior level from the 1,057 reported in SY 2020-21. Grant County now counts 7 public schools, up from 6 in SY 2020-21.
On this page, the community for Grant County discusses open enrollment windows, redistricting talk, and busing logistics. Posts come from current and former families, staff, and alumni.
Frequently asked questions
DATA · Census ACS 5-year · NCES Common Core of Data