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Tri-Valley School District 49-6

New rankings! South Dakota test scores for the 2025-26 school year were just released — SchoolDigger posted updated rankings this week.

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At a glance

55^thof 126 South Dakota districts▲ 13

Better than 56% of South Dakota districts

Elementary 2 Middle 1 High 1Grades K-12

46450 252nd St
Colton, SD 57018·(605) 446-3538·All South Dakota district rankings →

Statewide performance 2018–2026

2026: better than 56.3% of districts

Schools

952

Students

Top rankedTri-Valley Elementary in Colton - 0236^th of 203 South Dakota elementary schools

▲

Biggest riser

Tri-Valley Middle School - 03 up 65 spots statewide this year

Compare South Dakota districts →See the top-ranked South Dakota schools →

Summary:

Tri-Valley School District 49-6 has four schools serving kindergarten through grade 12, with elementary schools in Colton and Crooks, a middle school, and a high school; together they enroll 952 students. The most striking concern in the latest results is high-school math: Tri-Valley High School had 20% proficiency in grade 11 ACT math, 14 percentage points below the state, despite a 99% graduation rate.

Tri-Valley Middle School stands out as the strongest broad performer: its all-grades ELA proficiency was 56%, 7 points above the state, and math was 52%, 8 points above. Its grade 8 math was particularly strong, at 71% versus 43% statewide. In the shared elementary grades, Tri-Valley Elementary in Colton led Tri-Valley Elementary in Crooks in both subjects: the grade 3 gaps were 22 points in ELA and 25 in math, while grade 4 gaps were about 3 points each. Crooks is mixed rather than a consistent low performer: its all-grades ELA was lowest among the elementary and middle schools at 43%, but its math was highest among the elementary schools at 55%. The schools serve different grade spans, so shared-grade results are most useful for elementary comparisons.

Recent results moved in different directions: middle-school ELA and math rose 6 and 8 percentage points from 2024–2025 to 2025–2026, while Colton fell 9 points in each subject; Crooks ELA fell 7 points as math rose 4. Colton’s SchoolDigger statewide percentile rank climbed from 28 to 82 over three years, while Crooks’s fell from 53 to 37 between 2024–2025 and 2025–2026; the middle school rose from 53 to 70. Student-teacher ratios range from 12.0:1 at Colton to 15.2:1 at the high school. All four schools report free/reduced lunch eligible figures for 2024–2025, from 15% at the high school to 28% at Crooks; these are context, not an explanation for school results.

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				SD ACT English Language Arts (2026)	SD ACT Mathematics (2026)	SD ACT Science (2026)	Smarter Balanced Assessments English Language Arts (2026)						Smarter Balanced Assessments Mathematics (2026)						Smarter Balanced Assessments Science (2026)		Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	SD ACT English Language Arts 11th Grade	SD ACT Mathematics 11th Grade	SD ACT Science 11th Grade	Smarter Balanced Assessments English Language Arts 3rd Grade	Smarter Balanced Assessments English Language Arts 4th Grade	Smarter Balanced Assessments English Language Arts 6th Grade	Smarter Balanced Assessments English Language Arts 7th Grade	Smarter Balanced Assessments English Language Arts 8th Grade	Smarter Balanced Assessments English Language Arts All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Smarter Balanced Assessments Science 8th Grade	Smarter Balanced Assessments Science All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Tri-Valley High School - 01	Public	9-12	46474 252nd St	Colton	57018	Minnehaha County	Tri-Valley School District 49-6	(n/a)	(n/a)	No	No	(605) 446-3538	297	20	15.2	14.5%	263 (88.6%)	13 (4.4%)	15 (5.1%)	0 (0.0%)	2 (0.7%)	0 (0.0%)	4 (1.3%)	35.1	90^th of 130 public high schools	30.8%		52.4	88^th of 166 public high schools	47.0%	2	45.3	20.3	46.9															$12,269	$232	$12,037
Tri-Valley Middle School - 03	Public	6-8	46450 252nd St	Colton	57018	Minnehaha County	Tri-Valley School District 49-6	(n/a)	(n/a)	No	No	(605) 446-3538	296	20	14.9	22.6%	237 (80.1%)	20 (6.8%)	20 (6.8%)	0 (0.0%)	3 (1.0%)	1 (0.3%)	15 (5.1%)	65.4	46^th of 151 public middle schools	69.5%		55.5	111^th of 246 public middle schools	54.9%	65						54.9	51.4	61.4	56.1			32.9	51.4	71.1	51.9	48.2		$11,483	$232	$11,251
Tri-Valley Elementary in Colton - 02	Public	K-5	46450 252nd St	Colton	57018	Minnehaha County	Tri-Valley School District 49-6	(n/a)	(n/a)	No	Yes	(605) 446-3538	154	13	12.0	16.2%	139 (90.3%)	2 (1.3%)	9 (5.8%)	0 (0.0%)	1 (0.6%)	0 (0.0%)	3 (1.9%)	74.4	36^th of 203 public elementary schools	82.3%		66.5	98^th of 300 public elementary schools	67.3%	62				58.1	52.6				51.7	69.8	68.4				48.3		25.9	$14,169	$704	$13,465
Tri-Valley Elementary in Crooks - 04	Public	K-4	705 S West Ave	Crooks	57020	Minnehaha County	Tri-Valley School District 49-6	(n/a)	(n/a)	No	(n/a)	(605) 446-3538	205	16	13.2	27.8%	148 (72.2%)	36 (17.6%)	9 (4.4%)	2 (1.0%)	1 (0.5%)	0 (0.0%)	9 (4.4%)	45.8	127^th of 203 public elementary schools	37.4%		56.7	141^st of 300 public elementary schools	53.0%	14				35.7	50.0				42.5	45.2	65.8				55.0			$13,319	$630	$12,689

Districts nearby

District	Distance	# of Schools	Statewide Rank
West Central School District 49-7	7.71 mi	6	58^th
Baltic School District 49-1	9.31 mi	3	25^th
Sioux Falls School District 49-5	9.94 mi	48	85^th
Chester Area School District 39-1	11.09 mi	6	100^th
Dell Rapids School District 49-3	11.96 mi	3	4^th

See the top SD South Dakota districts

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the South Dakota Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.