For the 2026 school year, there are 4 public high schools serving 1,007 students in Union County, SD.
The top-ranked public high schools in Union County, SD are Elk Point-jefferson High School - 01, Dakota Valley High School - 01 and Alcester-hudson High School - 01. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Union County, SD public high schools have an average math proficiency score of 40% (versus the South Dakota public high school average of 40%), and reading proficiency score of 61% (versus the 63% statewide average). High schools in Union County have an average ranking of 6/10, which is in the top 50% of South Dakota public high schools.
Union County, SD public high school have a Graduation Rate of 90%, which is more than the South Dakota average of 82%.
The school with highest graduation rate is Dakota Valley High School - 01, with ≥95% graduation rate. Read more about public school graduation rate statistics in South Dakota or national school graduation rate statistics.
Minority enrollment is 15% of the student body (majority Hispanic), which is less than the South Dakota public high school average of 36% (majority American Indian).
Best Public High Schools in Union County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Elk Point-jefferson High School - 01
(Math: 50-59% | Reading: 60-69%)
Rank:
Rank:
9/
Top 20%10
402 S Douglas St
Elk Point, SD 57025
(605) 356-5901
Elk Point, SD 57025
(605) 356-5901
Gr: 9-12 | 212 students Student-teacher ratio: 14:1 Minority enrollment: 8%
Rank: #22.
Dakota Valley High School - 01
(Math: 45-49% | Reading: 70-74%)
Rank:
Rank:
8/
Top 30%10
1150 Northshore Dr
North Sioux City, SD 57049
(605) 422-3820
North Sioux City, SD 57049
(605) 422-3820
Gr: 9-12 | 431 students Student-teacher ratio: 17:1 Minority enrollment: 20%
Rank: #33.
Alcester-hudson High School - 01
(Math: ≤20% | Reading: 40-59%)
Rank:
Rank:
3/
Bottom 50%10
409 E 6th St
Alcester, SD 57001
(605) 934-1890
Alcester, SD 57001
(605) 934-1890
Gr: 9-12 | 99 students Student-teacher ratio: 11:1 Minority enrollment: 9%
Rank: #44.
Beresford High School - 01
(Math: 20-29% | Reading: 45-49%)
Rank:
Rank:
2/
Bottom 50%10
301 W Maple St
Beresford, SD 57004
(605) 763-2145
Beresford, SD 57004
(605) 763-2145
Gr: 9-12 | 222 students Student-teacher ratio: 15:1 Minority enrollment: 10%
Frequently Asked Questions
What are the top-ranked public high schools in Union County, SD?
The top-ranked public high schools in Union County, SD include Elk Point-jefferson High School - 01, Dakota Valley High School - 01 and Alcester-hudson High School - 01.
How many public high schools are located in Union County?
4 public high schools are located in Union County.
What is the racial composition of students in Union County?
Union County public high schools minority enrollment is 15% of the student body (majority Hispanic), which is less than the South Dakota public high schools average of 36% (majority American Indian).
Which public high schools in Union County are often viewed compared to one another?
Popular comparisons of public high schools in Union County include: Beresford High School - 01 vs. Alcester-hudson High School - 01, Beresford High School - 01 vs. Dakota Valley High School - 01, Beresford High School - 01 vs. Elk Point-jefferson High School - 01
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