As the cost of living skyrockets, driven by a housing affordability crisis, the very definition of being “low income” is changing. In Orange, Santa Barbara and San Diego counties, the threshold for a low-income single-person household will soon surpass $100,000 if current trends continue, according to data published by the California Department of Housing and Community Development in April. California defines income levels by how they compare with the area’s median income. But in areas with unusually low or high housing costs, those definitions are often tweaked to reflect the reality on the ground for residents. Therefore, someone earning $100,000...