Tonawanda Elementary

Set in Elm Grove, Wisconsin, Tonawanda Elementary is a substantial primary school, part of Elmbrook School District. It serves 533 students across grades pre-K through 5. That puts it 65% above the typical public school in Wisconsin, which averages around 323 students.

Elmbrook School District comprises 10 schools with combined enrollment of 7,845 students; Tonawanda Elementary is among them.

On the student-mix side, Tonawanda Elementary records that nearly all students (81%) are White. Other groups include 6% Hispanic, 6% multiracial, 5% Asian, 2% Black.

In terms of school funding signals, The school lists 35 full-time-equivalent teachers, for a student-teacher ratio near 15.3:1. That tracks the state average closely. Roughly 7% of students at Tonawanda Elementary qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. Set against Waukesha County (around 17%), the school's rate is meaningfully below typical.

With demographic context factored in, Tonawanda Elementary tracks the demographic baseline. The model predicts 73.2% given the school's FRL share; actual proficiency is 80.4%.

In the broader community, census data for Waukesha County shows median household earnings sit near $106,076, roughly 49% of adults have completed at least a four-year degree, and roughly 3% of residents live below the federal poverty line. Tonawanda Elementary is one of 113 public schools in Waukesha County (combined enrollment of about 60,032 students).

The closest other public school is Wauwatosa Montessori School, roughly 1.0 miles away. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), Tonawanda Elementary ranks 1st on composite proficiency, above the local average of 62.8%.

The school occupies a bedroom-community site.

Five-year trend. Looking back 7 years, enrollment at Tonawanda Elementary has climbed 37%, going from 390 students in 2018 to 533 in 2025. The White share of enrollment contracted from 86% to 81% over that span.

Within the allk12 community for this school, the page collects discussion, questions, and updates around open house dates, ride-share offers, and field-trip permission slips. Anyone with firsthand experience at this school can post or comment.