Washington state pools property tax money and then redistributed it equitably across the state to pay for education on a per pupil basis. This mainly means poorer eastern Washington districts are subsidized by richer western Washington districts, and districts that lose students to private schools take a direct hit in their funding.
(1) California property tax stays local, and is not pooled,
(2) However, due to Prop 13, property taxes are very small in California, and just over half of total funding for school districts comes from the state,
(3) Distribution of funding (either just the state funds or total funding) is not equal per-student across districts, with per student expenditures ranging widely across districts.
My mistake, I know that most of school funding came from the state but I thought it was because it was from property taxes being collected. In fact it's from state income tax and sales tax.