Summary:
ZIP code 54015 has exactly one middle school: Saint Croix Central Middle, serving grades 5–8 with 476 students in Hammond, Wisconsin. It is part of the Saint Croix Central School District. Because it is the only middle school in this ZIP code, the most meaningful comparisons are to the district and to the state of Wisconsin. The school’s enrollment is 476, with 18.28% of students eligible for free or reduced lunch, per-student spending of $15,327, and a student-teacher ratio of 13.5.
Saint Croix Central Middle shows strong academic strengths. Eighth-grade Social Studies is exceptionally strong: 84.48% proficient in 2024–25 and 82.05% in 2025–26, compared with state rates of 62.51% and 64.63%. Fifth-grade Math is consistently high: 73.33% in 2024–25 and 72.73% in 2025–26, both about 20 points above the state. ELA is above the state in every tested grade in 2025–26, including 70.80% in 7th grade versus the state’s 55.33%. Engagement indicators are also positive: chronic absenteeism is 9.0% versus the district’s 10.3% and the state’s 17.3%, and the dropout rate is 0.0% versus the district’s 2.0% and the state’s 1.1%.
There are some watch items. The school’s rank has declined over three years, from 62 out of 641 (90th percentile, 5 stars) in 2023–24 to 199 out of 643 (69th percentile, 3 stars) in 2025–26. It remains above the district’s 53rd percentile and the state median. Sixth-grade Math dropped from 73.39% to 52.07%, eighth-grade ELA fell from 71.55% to 55.56%, and eighth-grade Science declined from 67.24% to 55.56%, though Science still exceeded the state’s 51.86%. The main strengths to sustain are Social Studies, fifth-grade Math, and strong engagement metrics, while sixth-grade Math, eighth-grade ELA, and eighth-grade Science are worth monitoring.
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