Middletown, CA ZIP Codes & Directory
Middletown is located in Lake County in California. Browse all active 5-digit USPS ZIP codes serving Middletown and surrounding Lake County delivery districts.
All ZIP Codes in Middletown, CA
1 CodesAbout Middletown Mail Delivery & Postal Administration
ZIP codes in Middletown are administered by the United States Postal Service. Delivery routes are coordinated through regional Sectional Center Facilities (SCFs) servicing Lake County and surrounding California metropolitan districts.
Frequently Asked Questions About Middletown, CA ZIP Codes
How many ZIP codes serve Middletown, California? ▾
Middletown, California is served by 1 active USPS postal delivery codes: 95461.
What county is Middletown located in? ▾
Middletown is an incorporated city located within Lake County, California.
What is the population and demographic size of Middletown? ▾
According to official U.S. Census Bureau data, Middletown has an estimated population of 2,689 residents and is situated within the undefined.
How does mail sorting and delivery work in Middletown? ▾
Mail delivery in Middletown is operated by the United States Postal Service (USPS) through regional Sectional Center Facility (SCF) distribution plants servicing Lake County and surrounding California counties.
How much does it cost to ship a package to Middletown, CA? ▾
Shipping costs to Middletown 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 Middletown? ▾
Standard USPS Ground Advantage typically takes 2-5 business days to reach Middletown, depending on the origin. Priority Mail generally arrives in 1-3 business days. Please check tracking for specific regional routing times.