The $921,245 Gap: What Bay Area Movers Should Know About the Central Valley Right Now

Written by Brian Halstead

Zillow's typical-value index put the average San Francisco home at $1,441,021 at the end of September, up 15.5% over the past year, and the average San Joaquin County home at $519,776, down 2.1%. The difference between those two index values is $921,245, and it is worth being precise about what that number is. It compares a modeled index for the city of San Francisco with one for all of San Joaquin County - different geographies, different housing mixes, and not equivalent homes. It is not sale proceeds, and nobody gets handed the difference. What it does tell you is that the two markets have moved in opposite directions over the past year, by a wide margin. If you have been thinking about trading the Bay Area for the Central Valley, here are the current numbers, town by town, and the homework worth doing before you decide.

1. The price indexes, side by side

San Francisco's average home value reached $1,441,021 as of September 30, up 15.5% over the past year, with homes going to pending in around 13 days. Over the same period, the average San Joaquin County home value came in at $519,776, down 2.1%, with homes going to pending in around 25 days (Zillow Home Value Index, updated Sept. 30, 2026).

One caution before doing any math with these: the Zillow Home Value Index is a modeled measure of typical values, built from property-level estimates across each area. A city index and a county index are not the same yardstick, and neither one predicts what your specific sale or purchase would look like. We use them here the right way: as a consistent, same-day snapshot of direction and scale.

2. What the index shows, town by town

Every figure below is the same Zillow index on the same date (Sept. 30, 2026), so they compare cleanly with each other. Year-over-year change is in parentheses.

• Lodi: average home value $508,738 (down 1.4%). Wine country with 85+ wineries, Lodi Lake, and a real downtown.
• Stockton: average home value $422,451 (down 1.7%). The county seat, with waterfront neighborhoods and the most inventory in the county.
• Galt: average home value $529,162 (down 0.6%). A small-town grid 20 minutes south of Sacramento, with new construction still delivering.
• Manteca: average home value $572,552 (down 2.9%). Sits at the 120/99 split near the ACE line, a natural fit for buyers keeping one foot in the Bay.
• Lathrop: average home value $620,627 (down 3.8%). Just south of Manteca on I-5, one of the fastest-growing cities in the region.
• Ripon: average home value $673,757 (up 0.3%). A small, established community between Manteca and Modesto.
• Modesto: average home value $439,988 (up 0.3%). The Stanislaus County seat, with its own job base in health care, education and food processing.

These are index values, not list prices or sale prices for any particular home, and they are not a ranking of which town is the better buy - the right town depends on your commute, your budget, and how you want to live.

3. The honest catches

The rate reality. The average 30-year fixed rate was 7.32% in Freddie Mac's October 22 survey. To make that concrete with stated assumptions: at 20% down on a 30-year fixed at 7.32%, principal and interest on the San Francisco index value would run about $7,919 a month (loan of $1,152,817), versus about $2,856 on the San Joaquin County index value (loan of $415,821) - a difference of about $5,063 a month. That is principal and interest only. It excludes property taxes, insurance, HOA dues and transaction costs, your rate will depend on your credit and loan terms, and this illustration is not a savings quote or a prediction. It simply shows the scale of the difference at current rates.

The commute reality. ACE already runs from Stockton to San Jose, and plenty of local commuters make it work on hybrid schedules. If you heard a Sacramento extension is coming, know the timeline: in September the rail commission pushed the target to 2031, deferred two of the six planned Sacramento-area stations, and narrowed its project list from more than 40 projects to 17 to concentrate funding (On Site Observer, Sept. 2, 2026). And commuting is a real commitment here: the Modesto area has the second-largest share of "supercommuters" in the country, and about 18,000 of Stanislaus County's roughly 60,000 regular commuters travel 90 minutes or more each way (Modesto Bee, July 14, 2026). Test the drive or the train at the actual times you would travel before you fall in love with a house.

The research reality - and your own homework. UC Berkeley's California Policy Lab followed Bay Area households over time and found that a year after leaving the Bay Area, movers' homeownership rates had risen 11 to 18 percent (3 to 5 percentage points) compared with before they moved; after five years, homeownership rates among those who left California were up 33% (9 percentage points) from before they left (California Policy Lab report, July 30, 2026). What the averages cannot tell you is whether a specific move fits your household, so do three checks on any home you are serious about: look up current school information for the exact attendance areas from independent sources; get insurance quotes and review the hazard disclosures for the specific property, not the ZIP code average; and compare your full monthly cost - payment, taxes, insurance, commute - not just the mortgage line.

4. You are not the only one looking

Redfin's migration data for the fourth quarter of 2025 ranked the Sacramento region the number-one destination in the country for relocating homebuyers, with a net inflow of 4,268 searchers and San Francisco as the top origin (The Registry, March 10, 2026). That pipeline runs straight down I-5 and Highway 99, through the towns we work every day.

5. Bottom line

Whether the gap between Bay Area and Central Valley prices widens or narrows from here, no one can say. What the current numbers show is two markets moving in opposite directions over the past year, and a set of Central Valley towns where the same index reads far lower than San Francisco's. The right answer depends on your commute, your timeline, and which town fits the way you actually live. We are glad to run the real numbers for your situation, no pressure attached.

Browse current Central Valley homes for sale on our site, or reach out and we will put together a town-by-town comparison for your budget.

Sources

Market data (all Zillow Home Value Index pages, updated Sept. 30, 2026)

• San Francisco, CA Housing Market and San Joaquin County, CA Housing Market
• Lodi | Stockton | Galt | Manteca | Lathrop | Ripon | Modesto
• Freddie Mac: Primary Mortgage Market Survey - weekly averages as of Oct. 22, 2026

Research and news

• California Policy Lab / UC Berkeley: "New Report Finds Bay Area Residents Who Leave Are More Likely to Become Homeowners" (July 30, 2026)
• The Registry: "Sacramento Leads Nation in Homebuyer Inflows as Bay Area Outbound Migration Slows From Pandemic Peak" (March 10, 2026)
• Modesto Bee: "How housing and transit shaped Modesto's supercommuter trend" (July 14, 2026)
• On Site Observer: "Sacramento's ACE extension delayed to 2031 as two stations are put on hold" (Sept. 2, 2026)