Pioneer, CA ZIP Codes & Directory
Pioneer is located in Amador County in California. Browse all active 5-digit USPS ZIP codes serving Pioneer and surrounding Amador County delivery districts.
All ZIP Codes in Pioneer, CA
1 CodesAbout Pioneer Mail Delivery & Postal Administration
ZIP codes in Pioneer are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Amador County and surrounding California metropolitan districts.
Frequently Asked Questions About Pioneer, CA ZIP Codes
How many ZIP codes serve Pioneer, California? ▾
Pioneer, California is served by 1 active USPS postal delivery codes: 95666.
What county is Pioneer located in? ▾
Pioneer is an incorporated city located within Amador County, California.
What is the population and demographic size of Pioneer? ▾
According to official U.S. Census Bureau data, Pioneer has an estimated population of 5,398 residents and is situated within the undefined.
How does mail sorting and delivery work in Pioneer? ▾
Mail delivery in Pioneer is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Amador County and surrounding California counties.
How much does it cost to ship a package to Pioneer, CA? ▾
Shipping costs to Pioneer depend on the package weight, dimensions, shipping carrier (USPS, UPS, FedEx), and the distance from the origin ZIP code. To calculate exact postage rates, use our shipping cost estimator tool.
What is the standard delivery time for mail to Pioneer? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Pioneer, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.