Asian markets carry sushi rice in bulk. Most rice in the US is sourced from the farms in California. While it’s often not certified as organic you should keep an eye out to make sure you see the non-GMO label. I keep a 15 pound bag on hand that usually runs about $20.
Sushi rice is a specific type of rice – it’s a milled to about 60% medium-grained white rice. For best consistent results always go with sushi rice. Pick a brand and stick with it.