The top reported proficiency rate is 50% in English language arts. The lowest is 44% in Math.
Original Research by School Decision on Tri-valley Intermediate School - 03
Tri-Valley Intermediate School sits in Colton, South Dakota, a small bedroom community northwest of Sioux Falls. The town grew around a creamery and has evolved into a quiet residential place with a Main Street commercial strip and strong agricultural-services presence. Colton positions itself as a low-tax, family-friendly outpost of the Sioux Falls metro, with ready access to I-29 and I-90. The original local school in Colton closed when the Tri-Valley regional campus was built, consolidating students from several small towns. The intermediate school serves grades five through eight and carries that regional character, drawing families from across the Tri-Valley School District 49-6 rather than from Colton alone.
The school's enrollment is moderate for its grade band, with students distributed fairly evenly across the four grades. The student body is predominantly white, with small numbers of Black, Hispanic, multiracial, and American Indian students. A modest share of students qualify for free or reduced-price meals, well below what many rural South Dakota schools report. Data on individualized education programs and English-learner status was not available, so those populations cannot be characterized here.
On state assessments, Tri-Valley Intermediate posts solid results. In English language arts, roughly half of tested students reached proficiency on the SBAC, the strongest of the three subjects reported. Science proficiency, measured by the South Dakota Science Assessment, landed just below the halfway mark. Math was the softest area, with somewhat fewer than half of tested students scoring proficient or above. Full participation was reported across all three subjects, meaning every enrolled student in the tested grades sat for the exams. Average scale scores were not reported, so a deeper look at how students performed beyond the proficiency threshold is not possible from the available data. A parent weighing the math results may want to ask the school what supports or interventions are in place for students who fall below proficiency. No multi-year trend data was available, so it is unclear whether these results represent improvement, decline, or stability.
The housing picture in the Colton area is relatively affordable compared with both state and national benchmarks. Typical home values sit below the South Dakota statewide figure and well below the national figure, and the estimated monthly mortgage payment remains modest against national median household income. Rental data for the immediate area was not available. Home values have been rising year over year at a pace that outstrips both the state and national rates of appreciation, which suggests a tightening local market even though absolute prices remain approachable. For families considering a move into the district, this means housing costs are manageable today but may not stay that way if the Sioux Falls metro keeps expanding outward.
Several pieces of information that would help a parent form a fuller picture were missing. The school's Title I status, classification as urban or rural, staffing ratios, attendance patterns, discipline data, and any specialized program offerings were either not reported or not available. Civil-rights data was absent as well. No neighbor comparison was provided to position this school against others in the county. The district brief turned up no lasting parent-relevant changes in recent years. These gaps mean the portrait here rests largely on assessment results, demographics, and the Colton community context. Families considering Tri-Valley Intermediate would do well to visit the campus, ask about math instruction and support structures, and learn directly from the district what programs and resources exist beyond what the data captures.
See more original research from School Decision →