[s1artibartfast]

You see the same phenomenon in California and funds have been allocated Statewide since the 70s or 80s. The problem is more complicated than that

[seanmcdirmid]

WA is the same since 2013. A lot correlation is simply in socio economic demographics when the schools are well funded all around. Also, richer schools will have more parents volunteering for things, but that reflects in a better home life as well. Rich people can just afford to spend more time and resources on their kids even when the schools are funded equally.

[HWR_14]

Only ~50-60% of the money comes from the state. ~30-40% comes from the local governments. (The last ~10% comes from the federal government).