California county · 16 named communities
Sonoma County gas prices
$6.16 / gal Regular average · 118 locations
How we compare prices
Regular gasoline only. We compare the county average today with its average yesterday and on the same date last month. Each average uses the available stations at that time, with prices no more than 36 hours old. The mix of stations and payment conditions can change, so this is an indicative county trend.
Yesterday: Oct 21, 2026: $6.198/gal, 111 locations. Last month: Sep 22, 2026: $6.079/gal, 4 locations. Cutoffs use the same local time in California; a shorter month uses its last day. Monthly comparisons need at least 3 stations on each date; daily comparisons need 12. Past averages are reconstructed from recorded observations.
Current county averages
Sonoma County price benchmark
Median $6.10 · middle 80% $5.90–$6.41
118 current station prices
Median $6.43 · middle 80% $6.20–$6.77
48 current station prices
Median $6.60 · middle 80% $6.38–$6.90
66 current station prices
Median $8.83 · middle 80% $8.50–$9.00
54 current station prices
WorthStop rebuilds this county aggregate from the latest eligible price at each covered station. Individual timestamps vary and posted prices can change.
Source: WorthStop.Local driving guide
North Bay cities, vineyards and a Pacific coast
Sonoma County includes urban centers, vineyard landscapes and coastal communities. The county average is broad context for destinations spread across the North Bay.
Plan your fuel stop
For Sonoma County travel, choose the actual town or coastal access point before comparing fuel. A vineyard-area trip and a shoreline visit may have very different approaches.
Compare local benchmarks
Regular gas prices by city in Sonoma County
3 city benchmarks with eligible prices. Lower averages describe these samples, not a guaranteed saving at a particular station. Coverage differs between cities; compare your route before making a detour.
Rohnert Park
$6.11/ gal averageMedian $6.00 · 12 Regular prices
Santa Rosa
$6.11/ gal averageMedian $6.00 · 47 Regular prices
Petaluma
$6.16/ gal averageMedian $6.10 · 16 Regular prices
How Sonoma County compares
The current regular average is $0.11 per gallon above the California average.
The middle 80% of Regular prices spans $5.90 to $6.41.
What that spread means
Across a 10-gallon purchase, the current middle-range difference is about $5.10 before detour fuel and time.
Coverage in this benchmark
118 Regular-price locations across 56 postal codes and 16 named communities.
Why your route still matters
A county average is context, not a station recommendation. WorthStop compares grade, gallons, vehicle MPG and actual extra driving for each trip.