The top reported proficiency rate is 45% in English language arts. The lowest is 41% in Math.
Original Research by School Decision on Arco Elementary School
Arco Elementary School sits in the small rural city of Arco, the county seat of Butte County, Idaho, serving children from pre-kindergarten through sixth grade. It is a regular public school within the Butte County Joint District, the kind of place where the school is woven into the civic fabric of a town small enough that schools, the library, and municipal functions share the same tight grid.
The town itself is a highway crossroads. US Routes 20, 26, and 93 all pass through or near Arco, connecting it to Mountain Home, Idaho Falls, Shoshone, Blackfoot, Challis, and Twin Falls. The built environment is dominated by that highway corridor and a modest small-town street grid. Street life is minimal given the population and rural setting. The most distinctive local landmark is Number Hill, a rocky slope where each Butte County High School graduating class has painted its year for generations, a tradition that ties the school system to the community's identity in a very visible way.
Arco's economy runs on three things: the Idaho National Laboratory to the east, agriculture in the Lost River Valley, and recreation. The town serves as a gateway to Craters of the Moon National Monument and sits along the Big Lost River. Publicly reported sources describe a population in long-term decline, falling from a peak tied to the laboratory's mid-century expansion to a smaller count today, with no major new housing developments noted. That decline shapes the context the school operates in. Families here are living in a community that has been slowly contracting for decades.
The student body at Arco Elementary is small for its grade span, with roughly two dozen to three dozen children per grade. It is overwhelmingly white, with a small Hispanic presence and a handful of students from other racial backgrounds. Nearly half of enrolled students qualify for free or reduced-price lunch, a level that reflects the working-class and agricultural character of the area. Data on students receiving special education services or English learner support was not available, so those figures cannot be described here.
On state assessments, the most recent results paint a mixed picture for a small rural school. In English language arts, the third-grade cohort showed a majority of tested students reaching proficiency. Fourth-grade ELA results were lower, with fewer than half of tested students proficient. Fifth- and sixth-grade ELA results were suppressed or reported only as wide ranges, which is common when tested counts in a given grade are small enough that individual student results could be identified. In math, fourth-grade proficiency was modest, with fewer than half of tested students reaching the proficient level. Fifth-grade math was stronger, with nearly half of tested students proficient. Third- and sixth-grade math results were again reported only as ranges. A single fifth-grade science result was also reported as a range rather than a precise figure.
These results should be read with the understanding that each grade cohort here is small. A few students moving in or out, or a particularly strong or weak year-group, can shift percentages noticeably. The school does not have high school grades, so there is no graduation rate to report. That absence reflects the grade band served, not a gap in performance.
Several categories of information that parents often ask about were not available in the data provided. There is no staffing breakdown, no attendance or discipline data, no course-access or program offerings list, no Title I status, and no locale classification. Housing values and rents for the area were not included. A search for recent district-level changes such as referendums, curriculum shifts, or property-tax adjustments turned up nothing that clears a lasting-impact threshold, so there is little to report on that front.
What the available picture does show is a small, rural elementary school in a town with deep atomic-era roots and an economy anchored by a national laboratory, serving a mostly white, modest-income student body. The academic results that are visible land in a middling range for the state, with some grades stronger in literacy and others working to build math proficiency. Families considering Arco Elementary would be looking at a close-knit, small-classroom setting in a community that is quiet, highway-connected, and framed by high desert and volcanic landscape. A parent wanting to understand supports for struggling readers, math intervention, or special education services would want to ask the school directly, since those details did not appear in the available data.
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