Summary:
ZIP code 53573 covers Muscoda, Wisconsin, and its four schools — Riverdale Elementary (PK–6), Riverdale Junior High (7–8), Riverdale High (9–12), and Riverdale Academy (6–12) — all belong to the Riverdale School District, serving 631 students combined in a district ranked 214th of 432 schools, at the 50th percentile with 3 stars.
Most students attend Riverdale Elementary, which enrolls 337 children, about 53% of the area total. Its math proficiency is above the state in every tested grade from 3 through 6, and its 6th grade English language arts score of 66.67% beats the state's 54.95%. Riverdale High is the academic standout overall: its 2025-26 rank rose to the 66th percentile with 3 stars, it reports a 100.0% graduation rate versus the state's 92.0%, no dropouts, and ACT scores in English language arts, math, and science all above state. Its weak points are chronic absenteeism of 28.2%, well above the state's 17.3%, and 10th grade social studies at 35.42%, compared with 48.25% statewide. Riverdale Junior High has the lowest absenteeism in the group at 15.0% and science scores above state, but its rank slipped to the 49th percentile with 2 stars, and 8th grade ELA has stayed below state.
Riverdale Academy stands apart: just 14 students, 80.0% chronic absenteeism, a 57.1% graduation rate, and the highest free/reduced lunch rate at 71.43%, with no test-score records available. Because the school is so small, one student can shift its percentages by roughly 7 points, so those figures need small-cohort caution. Elsewhere, no school in the area reports any dropouts. Overall, absenteeism is the sharpest dividing line, separating the elementary and junior high from the high school and academy.
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