Heartwood Charter

In Petaluma, California, part of Sonoma County, Heartwood Charter is a combined-grade school. The school had 739 students in kindergarten through 12 in 2024-25. Average enrollment for combined schools in California is about 602, so this school runs 23% larger than that.

For district matters, Heartwood Charter falls under Heartwood Charter District.

By race and ethnicity, Heartwood Charter is 62% White. Beyond that, enrollment is 17% Hispanic, 16% multiracial, and 3% Asian. The White share in Sonoma County as a whole is similar, at about 62%. By the diversity index, Heartwood Charter comes in at 55%.

Federal staffing data show 22.7 full-time-equivalent teachers at Heartwood Charter and a ratio of 32.6:1. The average ratio among combined schools in California is 18.6:1, lower than at this school. The count of students eligible for free or reduced-price lunch equals 36% of enrollment. The gap from the 51% average for public schools in Sonoma County is 15 points.

In Sonoma County (population about 485,040), median household income is about $104,674, the share of adults with a bachelor's degree or higher is 39%, and about 5% of people live in poverty. A total of 184 public schools operate in Sonoma County, serving about 63,389 students.

The nearest other public school, Liberty Primary, is less than a tenth of a mile away. The count of other public schools within five miles is at least 8.

Federal records code the school's setting as Rural: Fringe. Heartwood Charter is a public charter school. Federal records classify Heartwood Charter as a virtual school.

Heartwood Charter reported 179 students in 2020-21 and 739 in 2024-25. Changes that large sometimes follow a school adding or dropping grades, so the two figures may not cover the same grades. Federal data show the ratio rising from 25.6:1 to 32.6:1.

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