Home prices across the bay area have been declining... except for four zip codes... and they are all in Sonoma County! Leading the way is 95476, which is Boyes Hot Springs near Sonoma, it saw a 1.8% increase from June to December of last year, but that was the highest. Our other hot ZIP codes are- 95404, 95409, in Santa Rosa and 94952 in Petaluma. All saw a modest home price increase, just proving that Sonoma County is the greatest place to live on earth!