Zip Code: 98040 (Mercer Island, WA) - Market Hotness: Trend of Supply Score (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the market hotness: supply score for the 98040 Zip Code in February 2026 was 57.2.

You can see similar for other Washington Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 98040 zip code.

Note: Supply Score is an index representing the metro's median days on market ranking compared to other metros.

Data Source: Realtor.
Zip Code: 98040 - Market Hotness: Trend of Supply Score
Zip Code: 98040 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 66.94158075601374
October 2017 69.10493251228463
November 2017 85.2840909090909
December 2017 79.6503000193561
January 2018 67.91658311610188
February 2018 47.49270732046117
March 2018 96.40777380200659
April 2018 90.87194404044602
May 2018 66.10262008733623
June 2018 52.55600611580137
July 2018 84.56124491509007
August 2018 78.48109351047522
September 2018 60.822977428354044
October 2018 57.692307692307686
November 2018 69.2375830433407
December 2018 79.25983037779491
January 2019 59.09060955518945
February 2019 51.63793695487947
March 2019 83.67163145133357
April 2019 73.86862314865607
May 2019 60.08094944090004
June 2019 57.674981510119004
July 2019 67.58403774326716
August 2019 58.11865729898516
September 2019 62.56687939147811
October 2019 68.86134779240899
November 2019 65.74664757193074
December 2019 38.968976283797254
January 2020 24.005860192549182
February 2020 22.214108368628597
March 2020 76.31482162559765
April 2020 77.15600415615259
May 2020 70.96894595401612
June 2020 61.52632764966574
July 2020 79.6226123269662
August 2020 82.84235668789809
September 2020 60.76289836172467
October 2020 40.600368941807815
November 2020 82.09331651954602
December 2020 71.4424263798272
January 2021 46.45319731746482
February 2021 86.35473564876843
March 2021 95.28043775649795
April 2021 87.28754365541327
May 2021 81.15473441108546
June 2021 76.07248117017792
July 2021 87.11012415463813
August 2021 57.83788860711938
September 2021 78.86208466090123
October 2021 81.70753696357735
June 2022 93.14090626939789
July 2022 87.19088635732147
August 2022 66.16252243014613
September 2022 77.95295506281089
October 2022 69.12922061436913
November 2022 85.0578539915092
December 2022 90.52551150352322
January 2023 73.26988080412737
February 2023 33.13524393750599
March 2023 92.18342364037728
April 2023 89.14203612479474
May 2023 78.5981214018786
June 2023 79.26889348704306
July 2023 80.7376662579002
August 2023 53.82035711048672
September 2023 62.545486819916576
October 2023 86.88776818531498
November 2023 77.14358193810249
December 2023 49.12073047007102
January 2024 10.188046261145935
April 2024 90.50768514205869
May 2024 97.96490593342982
June 2024 85.01985840096702
July 2024 91.70647339812223
August 2024 82.93838862559242
September 2024 81.87709846177871
October 2024 85.83941605839416
November 2024 73.1948489958608
December 2024 28.072744085690065
January 2025 9.682982917214192
February 2025 10.994584372045043
March 2025 86.97678432726332
April 2025 72.53698722259583
May 2025 94.02085369827306
June 2025 91.32791327913279
July 2025 80.75015033072759
August 2025 76.84856551316179
September 2025 62.14156079854809
October 2025 71.92043399638337
November 2025 64.41464298658934
December 2025 25.28820030839269
January 2026 16.786793768890956
February 2026 22.966313918733338
March 2026 57.20036145568061