Best Public Schools in Zip Code 54923

ZIP code 54923 covers Berlin, Wisconsin, and is served by three public schools — Clay Lamberton Elementary (PK–5, 480 students), Berlin Middle (6–8, 276 students), and Berlin High (9–12, 441 students) — all part of the Berlin Area School District, which ranks 351 of 432 Wisconsin districts (19th percentile, 1 star). Elementary students make up about 40% of the 1,197 total enrollment, high schoolers 37%, and middle schoolers 23%. No alternative school is listed.

Berlin Middle is the strongest standout: it ranks 368 of 643 (43rd percentile, 2 stars) in 2025–26, up from the 24th percentile a year earlier, with big jumps in 8th grade social studies (33.71% to 65.79%), 6th grade math (33.33% to 58.57%), and 8th grade science (31.46% to 54.55%). Its 6th and 8th grade math, 8th grade science, and 8th grade social studies all beat state averages. Clay Lamberton Elementary has the best attendance — 14.2% chronic absenteeism versus the district's 18.0% and the state's 17.3% — plus above-state 4th grade math (60.61%) and 5th grade math (54.17%). Berlin High beats the state on completion: a 93.6% graduation rate versus 92.0%, and a 0.9% dropout rate versus 1.1%.

Yet Berlin High has the lowest proficiency of the three, with 10th grade social studies 16.29 points below state, ACT ELA 11.47 points below, ACT math 11.93 points below, and ACT science 9.2 points below; it also has the highest chronic absenteeism at 21.4%. Two patterns span the ZIP code: absenteeism climbs with grade level (14.2% to 18.8% to 21.4%), and English Language Arts is a consistent weakness, with every elementary and middle school ELA grade below state. Math is stronger in the elementary and middle grades but weaker at the high school. Free/reduced lunch is highest at the elementary school (56.67%), and Berlin High spends the most per student ($17,908) while posting the lowest proficiency.