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ZIP 98040 in Mercer Island, WA: housing market trends

The median home sale price in ZIP 98040 in Mercer Island, WA was $2,306,822 for the three-month period ending September 2026. Sale prices were 1.4% higher than the same period one year earlier. These are area-level statistics; changes in the mix of homes sold can move the median.

Median sale price
$2,306,822
three-month period ending September 2026
Median sale price per sq ft
$804.09
three-month period ending September 2026
Active listings
157
three-month period ending September 2026
Typical monthly rent
$2,827
Rent index · August 2026

How is housing inventory changing?

There were 157 active listings for the three-month period ending September 2026. Active listings were 5.4% higher than the same period one year earlier. This counts homes active at any time during the period, not only those available on its final day.

How long are homes taking to sell?

The median time on market was 11 days for the three-month period ending September 2026. Sale prices, inventory, and selling time describe different parts of the market; none alone establishes what an individual home will sell for.

Home prices by property type

Published Redfin medians for each home type. Each row covers the three-month period ending in its listed month; missing values remain unavailable.

Property-type comparison for ZIP 98040 in Mercer Island, WA
Home typePeriod endingMedian sale priceSale price / sq ftHomes sold
All homesSeptember 2026$2,306,822$804.0965
Single-familySeptember 2026$2,369,402$817.2460
TownhousesSeptember 2026UnavailableUnavailableUnavailable
Condos / co-opsSeptember 2026$576,983$552.115 · small sample
Multifamily (2–4 units)September 2026UnavailableUnavailableUnavailable

Compare nearby housing markets

Published city and place figures. Check each row’s reporting period and source before comparing; these are separate markets, not neighborhood boundaries.

Nearby market comparison for ZIP 98040 in Mercer Island, WA
MarketMedian sale priceReporting period / source
Mercer Island, WA$2,306,4023 months ending September 2026 · Redfin
Beaux Arts Village, WA$3,215,9693 months ending September 2026 · Redfin
Newcastle, WA$1,635,4713 months ending September 2026 · Redfin
Bellevue, WA$1,360,000Month ending July 2026 · Zillow
Medina, WA$3,738,2203 months ending September 2026 · Redfin
Clyde Hill, WA$3,723,2273 months ending September 2026 · Redfin

Recent sale-price history

All residential home types. Each row represents an overlapping three-month period ending in that month. Use the charts above for the full available history and home-type filters. Missing values remain unavailable.

Recent home sale prices for ZIP 98040 in Mercer Island, WA
Period endingMedian sale priceSale price / sq ftActive listings
September 2026$2,306,822$804.09157
August 2026$2,315,000$799.17155
July 2026$2,450,000$781.48159
June 2026$2,500,000$769.21164
May 2026$2,450,000$733.59145
April 2026$2,355,000$736.75125
March 2026$2,149,975$736.7594
February 2026$2,100,000$812.2768
January 2026$2,099,975$781.3967
December 2025$2,250,000$781.9988
November 2025$2,250,000$781.25119
October 2025$2,200,000$762.99135
September 2025$2,275,000$759.72149
August 2025$2,367,000$763.30155
July 2025$2,498,000$824.97172
June 2025$2,498,000$841.75175
May 2025$2,500,000$886.88155
April 2025$2,600,000$879.31129
March 2025$2,500,000$779.0987
February 2025$2,250,000$780.0961
January 2025$1,900,000$772.8664
December 2024$2,125,000$772.8682
November 2024$2,025,000$806.12111
October 2024$2,250,000$825.47130

Sources and definitions

Sale-price and property-type histories use Redfin where available. Redfin observations cover rolling three-month periods. Zillow Research supplies monthly home-value and rent indices and additional market series. Provider selection is shown in the chart details. Each metric retains its own reporting date.

Sale price per square foot describes completed sales with reported floor area; it is not a listing-price measure. Active listings count listings active during the reporting period. Home values and rents are typical-value indices, not sale-price or rent medians. ZIP map boundaries are Census ZCTAs and may differ from provider regions. Related ZIP associations do not imply containment within city boundaries.

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