Newcastle, CA ZIP Codes & Directory
Newcastle is located in Placer County in California. Browse all active 5-digit USPS ZIP codes serving Newcastle and surrounding Placer County delivery districts.
All ZIP Codes in Newcastle, CA
1 CodesAbout Newcastle Mail Delivery & Postal Administration
ZIP codes in Newcastle are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Placer County and surrounding California metropolitan districts.
Frequently Asked Questions About Newcastle, CA ZIP Codes
How many ZIP codes serve Newcastle, California? ▾
Newcastle, California is served by 1 active USPS postal delivery codes: 95658.
What county is Newcastle located in? ▾
Newcastle is an incorporated city located within Placer County, California.
What is the population and demographic size of Newcastle? ▾
According to official U.S. Census Bureau data, Newcastle has an estimated population of 6,532 residents and is situated within the undefined.
How does mail sorting and delivery work in Newcastle? ▾
Mail delivery in Newcastle is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Placer County and surrounding California counties.
How much does it cost to ship a package to Newcastle, CA? ▾
Shipping costs to Newcastle 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 Newcastle? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Newcastle, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.