Sanislo Elementary School

Sanislo Elementary School is an elementary campus of micro-enrollment scale in SEATTLE, Washington, overseen by Seattle School District No. 1, caters to 145 students in grades K through 5. That puts it 62% leaner than the typical public school in Washington, which averages around 380 students.

Across the 107 schools in Seattle School District No. 1 (50,773 students total), Sanislo Elementary School accounts for its share of the district's footprint.

Demographically, Sanislo Elementary School logs that the largest single group is Black at 28%, but no single group is in the majority. Beyond that, the school shows 22% Hispanic, 20% White, 17% multiracial, 12% Asian. By comparison, King County as a whole is about 7% Black, so the school skews considerably more Black than its surroundings.

On the income-and-resources front, On paper, Sanislo Elementary School has 14 full-time-equivalent teachers, translating to a class-load average of around 10.7:1. Statewide, the average ratio sits near 17.3:1, putting Sanislo Elementary School tighter than the state norm the norm. Around 67% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. By comparison, King County runs at roughly 38%, so the school's eligibility rate is higher than the surrounding baseline.

After controlling for student poverty, Sanislo Elementary School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 35.3%; this one delivers 36.7%.

In the surrounding community, the surrounding county (King County) shows that median household income runs about $124,746, 57% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 5%. Sanislo Elementary School is one of 544 public schools in King County (combined enrollment of about 278,492 students).

Louisa Boren STEM K-8 is the nearest neighboring public school, about 0.6 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, Sanislo Elementary School comes 6th of 9 in the immediate cluster, beneath the nearby-schools average of 44.6%.

The campus sits in a high-density setting.

Five-year trend. Looking back 7 years, enrollment at Sanislo Elementary School has shrank 39%, going from 236 students in 2018 to 145 in 2025. Asian enrollment moved from 17% to 12% across the same window. Class-load math has fell: from 13.0:1 in 2018 to 10.7:1 in 2025.

Inside the community feed, the feed for Sanislo Elementary School typically covers sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.