Agricultural Croplands

Agricultural cropland occupies over 51,000 acres (2005) of the County and primarily located in the Napa Valley Floor, Carneros, and Eastern Mountains. Common agricultural croplands in Napa County are

  • Vineyards
  • Forage crops (hay)
  • Olives

Vineyards occupy over 43,000 acres in Napa County (2017). Other minor croplands include forage crops, olives, a variety of orchards types, and nursery products. Note: pasture and rangeland have not been included in the totals in this section. The Napa County Crop Report annually lists the number of acres in agricultural production.


Vineyard grapes attract many birds, mammals, and insects. American robin (Turdus migratorius), European starling (Sturnus vulgaris), and house finch (Carpodocus mexicanus) are primary bird species that forage on grapes. Mammals include deer, raccoons and pocket gophers (Thomomys spp.).


American robin

(Turdus migratorius




Pocket gopher

(Thomomys spp.)


 The primary ecosystem functions of agricultural cropland in the County are:

  • Provide food products for the human population
  • Provide limited wildlife habitat

Use the map below to explore the various biotic communities throughout Napa County.