Defining "middle class" is tricky because it's relative, but most sources place it between 67% to 200% of the median household income. In California, with a median income around $80,000, that puts the middle class roughly between $53,600 and $160,000. Given your household size and location within California, $130,000 probably puts you squarely in the middle class range, although on the higher end. Check the specific income limits for the assistance programs you're interested in, as they often use a more precise definition based on family size and county.