Cost of Living in South San Francisco, CA

With a cost of living index of 222, South San Francisco, CA is one of the most expensive cities in the United States. Living here is 122% more expensive than the national average and 78% above the California state average of 144. With a population of 64,487, South San Francisco is a mid-sized community that balances access to services with a more manageable cost of living compared to larger metros.

Housing costs are the biggest factor in South San Francisco's cost of living. The median monthly rent is $2,833 (115% above the US median of $1,319), and the median home value sits at $1,160,100 (280% above the national median of $304,900). At current prices, the median home costs roughly 8.5x the median household income — a challenging ratio that puts homeownership out of reach for many residents.

The median household income in South San Francisco is $135,909, which is 81% higher than the national median of $75,149. Residents spend roughly 25% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum. While incomes are above average, they do not fully offset the higher cost of living.

Climate is another factor for anyone considering a move to South San Francisco. The area sees an average annual temperature of 58.7°F, with summers averaging 64°F and winters around 52°F. Annual rainfall totals 19.6 inches spread over roughly 65 days.

Everyday prices in the San Francisco-Oakland-Fremont, CA (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 6 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.