Schools in Zip Code 53191

Zip code 53191 covers Williams Bay, Wisconsin, where the Williams Bay School District serves 597 students across three public schools: Williams Bay Elementary (PK–5, 282 students), Williams Bay Middle (6–8, 145 students), and Williams Bay High (9–12, 170 students). The district itself is ranked 162 out of 432 Wisconsin districts, a 3-star rating — but that single number hides wide variation among the three schools, which are otherwise similar in size and student-teacher ratio (12.1 to 12.4).

Williams Bay Elementary is the strongest academic performer, holding 4 stars in each of the last three years with rank percentiles of 76, 83, and 77. In 2025–2026 its math proficiency ranges from 70% to 75.68% across grades 3–5, versus state rates of roughly 51.8% to 54.8%, and its ELA average of about 64.1% is also well above state. Williams Bay High is the most improved, climbing from 2 stars to 3 stars to 4 stars, with rank percentiles rising from 35 to 69 to 74. It posts a 100% graduation rate, a 0.5% dropout rate, and 10.2% chronic absenteeism — all better than state figures — plus grade 10 ELA (67.5%) and social studies (68.57%) proficiency about 19 to 20 points above state.

Williams Bay Middle is the clear lagging school, holding 2 stars in all three years. Its ELA average of about 61.2% is above state, but math (about 47.8%) is below, and grade 8 is the weakest spot: 26.67% proficient in math versus 53.67% statewide, 46.67% in social studies, and 37.78% in science. Notably, the middle school has the lowest chronic absenteeism of the three at 8.5%, so attendance does not appear to be the driver. Per-student spending is highest at the high school ($20,097) versus $17,629 and $17,291 at the middle and elementary schools.