Mattie Washburn Elementary

Set in Santa Rosa, California, Mattie Washburn Elementary is a mid-sized elementary school, overseen by Windsor Unified. It educates 535 students across grades K through 2.

Within Windsor Unified, which oversees 8 schools and 4,669 students, Mattie Washburn Elementary is one campus in the system.

On the student-mix side, Mattie Washburn Elementary shows that 50% of students identify as Hispanic, with the remaining enrollment distributed across several groups. The remainder comes out to 38% White, 8% multiracial, 2% Asian. That is meaningfully more Hispanic than the county at large, where the share is closer to 30%.

On the income-and-resources front, On paper, Mattie Washburn Elementary has 32 full-time-equivalent teachers, translating to a class-load average of around 16.7:1. That figure is tighter than the state norm's 22.3:1 average. An estimated 53% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.

In the surrounding community, Sonoma County reports that median household earnings sit near $104,674, roughly 39% of adults have completed at least a four-year degree, and the poverty rate sits near 5%. In all, Sonoma County runs 184 public schools (combined enrollment of about 63,389 students), of which Mattie Washburn Elementary is one.

Windsor Middle is the nearest neighboring public school, about 1.4 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Mattie Washburn Elementary.

The campus sits in a suburban setting.

Five-year trend. Over the past 7-year window, the student count expanded 23%: 435 students in 2018 compared to 535 in 2025. White enrollment moved from 44% to 38% across the same window. The student-to-teacher ratio fell from 20.7:1 in 2018 to 16.7:1 today.

Within the allk12 community for this school, recent activity here tends to focus on sports schedules, lunch menu changes, and school spirit week. Contributors range from current parents to recent graduates and teachers.