In California, nearly half of all children live in low-income households— and the younger they are, the more likely that is true. Those who live in households with the highest median incomes usually live with married parents.
Even among those with similar households, the difference in family income is vast, depending on where they live.
In Marin County, for instance, a household with married parents and minor children earns four times what a family in Modoc County earns. Among single mothers, Marin also has the highest median income compared to Merced County where single moms earn the least.
Geography has a lot to do with housing costs and living expenses. In August the median sold price for a house in San Francisco was $1.6 million versus a median sold price of $350,000 for a house in San Bernardino County, reports the California Association of Realtors.