98040 Zip Code Mercer Island King
Today
Aug 30, 2026,
ZIP Code 98040 is located in Mercer Island, Washington, in County King. It serves as an essential reference for accurate mail delivery, this ZIP Code assists identify the accurate postal area for residential and business addresses.
98040 Zip Code – King, Mercer Island, WA
The 98040 zip code serves King. It is a neighborhood in Mercer Island, Washington. This code is important for accurate mail delivery. It can also help you find local amenities such as schools, parks and community events. By using zip codes like 98040 you can explore different neighborhoods, it also shows what makes each area unique.
Demographics of Zip Code 98040
Located in Mercer Island, Washington, zip code 98040 has a specific population and density that reflect the local community.
Finding the Right Zip Code for Mercer Island, King County
If you need to send mail to Mercer Island King county, you can easily find the zip code online or by visiting your local post office.
FAQs
How many digits is the King zip code?
The King zip code in Mercer Island is a five-digit number used to identify this specific area.
Does the King zip code ever change?
Zip codes may change due to postal service updates or administrative reasons. If you are looking for the King zip code always check for the most current information from official postal sources or local post offices.
Which county is zip code 98040 in?
Zip code 98040 covers areas within King county, Washington.