I
n St. Helena, the median price per square foot for a home over the past five weeks was $983, significantly higher than Napa County's median at $607.

    Yountville takes the top spot as the most expensive community in Napa County, with a median price per square foot of $1,030 during the same period. In contrast, American Canyon offers the best value, with a median price per square foot of just $354.

    A notable sale in St. Helena was a 6,863-square-foot home on Spring Mountain Road that sold for $6,750,000 over the past five weeks. The data used to compile these figures is based on sales registered during the week of March 10 and sourced from municipal assessors in Sonoma County.