Mercer Island, WA real estate
Buying or selling a home, condo, or piece of land in Mercer Island? Here is what the city's housing actually looks like, and how to reach Isaac Ortiz about it.
Mercer Island housing snapshot
| Population | 25,282 | |
|---|---|---|
| Median home value | $1,884,200 | Owner-reported |
| Median household income | $202,359 | |
| Detached houses | 65.6% | Share of all housing units |
| Townhomes / attached | 0.4% | |
| In buildings of 2+ units | 33.3% | Condos and apartments alike |
| Manufactured homes | 0.8% | |
| Owner-occupied | 66% | |
| Median year built | 1973 | |
| Vacancy rate | 5.4% |
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023). Tables B25077, B01003, B25003, B25024, B25035, B19013, B25002. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
What the numbers mean for a buyer or seller
The median owner-reported home value in Mercer Island is $1,884,200.
That is 132% above the King County median of $811,200. Median household income is $202,359, 66% above the county's $122,148.
Mercer Island's housing is genuinely mixed - 65.6% detached houses, 33.3% in multi-unit buildings, and 0.4% attached single-family such as townhomes. Both house and attached-home stock exist here in real numbers.
66% of occupied homes are owner-occupied - a fairly even ownership-to-rental split.
Half of Mercer Island's homes were built in 1973 or earlier, so a large share predates modern energy codes - worth leaving time in the inspection for the roof, the electrical, and the plumbing.
Mercer Island is 25,282 people, big enough for a steady flow of comparable sales. Vacancy sits at 5.4%.
Selling in Mercer Island
66% of homes here are owner-occupied, so most sales are people moving on rather than investors trading. Buyers in that market are usually comparing your home against a small number of others, and presentation moves the number more than it does in a high-turnover area.
For pricing context, the midpoint of Mercer Island homes is $1,884,200, and the area sits about 2.7 miles off the Seattle-Bellevue-Tacoma spine - usually the first thing a buyer's agent checks when they push back on a list price.
Half the homes here were built in 1973 or earlier, so buyers and their inspectors arrive expecting questions about the roof, the electrical and the sewer line. Knowing those answers before you list is usually worth more than fixing them mid-negotiation.
Isaac will tell you what your home is actually likely to bring in Mercer Island and what, if anything, is worth doing first. If the honest answer is that this is not your year to sell, he will say that too.
Talk to Isaac Ortiz about Mercer Island
Isaac Ortiz is a licensed real estate broker with Compass, working King County and the surrounding Puget Sound area. Se habla español. Send a note and he will reply personally.
Email Isaac.Ortiz@nwret.com.