Zip Code: 98303 (Anderson 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 98303 Zip Code in September 2025 was 10.893.

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 98303 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: 98303 - Market Hotness: Trend of Supply Score
Zip Code: 98303 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 43.79881287097782
October 2017 22.292716302792808
November 2017 24.179292929292927
September 2018 86.78037027643926
October 2018 69.18677727501257
November 2018 56.6909205947485
July 2019 91.92713452591573
August 2019 85.48659901118918
September 2019 73.9895571456198
October 2019 72.34701781564678
November 2019 68.86473115479755
December 2019 48.21630239819305
August 2022 89.68640519524908
September 2022 71.45265997807942
May 2024 89.85166425470334
June 2024 47.0039716801934
July 2024 36.15549332894087
August 2024 9.334083058880232
September 2024 7.940969782150386
October 2024 26.454091432961967
November 2024 29.434309366855743
April 2025 94.72091459314055
May 2025 57.99934832192897
June 2025 18.226867982965544
July 2025 17.23541791942273
August 2025 12.9547471162378
September 2025 16.370235934664244
October 2025 10.893309222423147