Costliest Neighborhoods in Washington State Unveiled through Zillow Data Insights
Get the Lowdown on the Priciest Pockets in Washington State
Ever wondered where the big-buck real estate action is happening in the Pacific Northwest? Let's dive into the top dog ZIP codes in Washington that'll make your wallet weep (or rejoice, depending on your perspective). This list is based on the latest figures from Zillow's home value index and the 2023 American Community Survey.
Washington's Goldmines: Most Expensive ZIP Codes Unveiled!
We sifted through oodles of ZIP codes across the U.S., zeroing in on the 486 ZIP codes tracked by Zillow in Washington. To create this list, we considered the March 2025 home values and the average of 12 months of median home values from April 2024 to March 2025. Buckle up, because things are gettin' pricey!
Leading the Pack: Top 3 Most Expensive Washington ZIP Codes
ZIP Code 98039 - Medina, Here We Come!
Prepare to open your wallet wide for this one, as 98039, centered on the town of Medina, tops our list. This ZIP code boasts an east Seattle location, over Lake Washington, and is home to posh digs like the Overlake Golf & Country Club and stunning lakefront properties. Household incomes are ludicrously high, with a median of $249,688 and an average of $459,352. Almost 60% of residents earn $200K or more per year. Home values have rocketed, with an increase from over $3 million in March 2020 to a staggering $4.67 million in March 2025.
ZIP Code 98040 - Welcome to Mercer Island!
Next up is 98040, which encompasses the entirety of Mercer Island, a cushy town smack-dab in the middle of Lake Washington. Nearly 60% of households in 98040 earn $200,000 or more, boasting a median income of $200,000 and a mean of $303,425. Home values blossomed at a similar rate to the No. 1 spot, with a 54.8% appreciation since March 2020, growing from over $1.54 million to a shiny $2.38 million.
ZIP Code 98004 - Say Hi to Bellevue!
Our third most expensive ZIP code is 98004, which centers around Bellevue. This zip includes swanky neighborhoods like Hunts Point, Yarrow Point, Clyde Hill, Ashwood, Moorland, Northup, and Beaux Arts Village. More than two-fifths of households earn over $200,000 a year. Incomes in ZIP code 98004 are high, though not as high as the first two most expensive ZIP codes. The median household income is $176,367, while the average household income is $260,065. Home values increased more than half, with a one-year appreciation of 8.1%, from a median of almost $1.88 million to over $2.03 million.
The Skinny on the Most Expensive ZIP Codes in Washington
King County, home to the Seattle metropolitan area, reigns supreme in our list, with the top 14 most expensive ZIP codes nestled here. The first zip on our list outside King County is 98280, centered on Orcas in San Juan County.
Although the exact top 10 most expensive ZIP codes, as of March 2025, are not available, some affluent areas and ZIP codes can be inferred. These include Medina (98039), Brier, Mill Creek, Carnation, Normandy Park, and Lake Forest Park, with typical home values ranging from around $996,051 to $1,040,572.
If you're on the hunt for a precise list of the top 10 most expensive ZIP codes, you might want to check out Zillow's data or give your local real estate sources a ring. Happy house hunting, and try not to drop too much change! 💰💰💰
- By March 2025, the most expensive zip code in Washington will be 98004, centered around Bellevue, where the average home value is predicted to be over $2.03 million.
- The Seattle real estate market, particularly in ZIP code 98004, is a hotspot for investing, with over two-fifths of households earning over $200,000 per year.
- The ZIP code 98039, located in Medina, currently holds the title of the most expensive zip code in Washington, with home values increasing from over $3 million in March 2020 to a staggering $4.67 million in March 2025.
- In the Seattle housing market, creditline applicants might need to consider the high-priced properties and average household incomes of $249,688 in ZIP code 98039, which could impact their borrowing capacity when investing in real-estate.
