Pioneer, CA 95666 - Amador County California

Cities in 95666

Below are the cities that the US Postal Service accepts for the ZIP code 95666. This code is specific to the city of Pioneer, California, and its surrounding areas. If you are mailing a letter or package to this area, be sure to use this ZIP code to ensure that your mail is properly delivered. The city listed in a ZIP code may not be the preferred city for that area. The city associated with the ZIP code 95666 is typically the name of the main post office for that area. When sending your package or letter, be sure to include the preferred or acceptable city. Using any city not on the list of acceptable cities may result in delays.

Primary/prefered city: Pioneer, CA


Population 4,692
Population Density 56 people per sq mile
State FIPS 06
County FIPS 005
Land Area 83.98 sq miles
Water Area 2.25 sq miles
Latitude 38.56
Longitude -120.35

Total Population by Age


Race & Ethnicity



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