Summary:
ZIP code 89040 covers Overton and the wider Moapa Valley area of rural Clark County, Nevada, and contains just two schools serving 969 students in grades 6 through 12: Lyon Mack Middle School (grades 6–8, 401 students) and Moapa Valley High School (grades 9–12, 568 students). Both belong to the Clark County district, and both report 100% free- or reduced-price lunch eligibility, meaning every student here is counted as coming from a lower-income household. No elementary or alternative schools are listed for this ZIP, so this data covers only the secondary years of the local pipeline.
Lyon Mack Middle School is the clear standout. It ranks 33rd of 148 Nevada middle schools (78th percentile) and has held a 4-star rating for three straight years. Its proficiency beats both district and state by wide margins in every subject tested — mathematics 52.7% against a state figure of 36.2%, reading 53.7% against 45.2%, and science 45.8% against 25.5%. That strength is broad: every grade level in both math and reading sits above the district and state. The middle school also has smaller classes (15.4 students per teacher versus 18.9) and somewhat higher per-student spending ($18,973 versus $17,812), and its chronic absenteeism rate of 24.2% is better than both the district and state.
Moapa Valley High School has strong headline outcomes but a softening trend. Its graduation rate is 93.0%, above district and state, and 11th-grade English ACT proficiency is 62.5%, up from the previous year. Math and science are slipping, though: math ACT fell from 39.7% to 27.9%, and science EOC fell from 33.7% to 27.1%, now roughly level with the state. Its ranking dropped from 24th of 97 (75th percentile, 4 stars) to 43rd of 105 (59th percentile, 3 stars), and chronic absenteeism is 29.1%, worse than both benchmarks. Nevada suppressed the 9th- and 10th-grade science figures, so those cannot be judged either way.
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