Zip Code: 91789 (Walnut, CA) - 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 91789 Zip Code in February 2026 was 58.441.

You can see similar for other California Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 91789 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: 91789 - Market Hotness: Trend of Supply Score
Zip Code: 91789 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 78.87535145267104
October 2017 83.06276046526094
November 2017 75.5050505050505
December 2017 88.79927737273373
January 2018 85.32852082080075
February 2018 75.51048756771775
March 2018 91.84031431979233
April 2018 88.55876445737239
May 2018 85.54175764192141
June 2018 80.52914977065745
July 2018 75.71511590366113
August 2018 74.71257026060296
September 2018 63.321075323357846
October 2018 76.3700351935646
November 2018 72.40746599177476
December 2018 77.39013107170393
January 2019 85.72652388797364
February 2019 86.99265160359866
March 2019 74.8735711811569
April 2019 65.72956664838179
May 2019 50.641421417301224
June 2019 46.74241914879311
July 2019 45.50160539938405
August 2019 53.037991152745256
September 2019 57.287436343711725
October 2019 58.99173767105603
November 2019 51.83569847676084
December 2019 52.33508270776589
January 2020 43.35844844425841
February 2020 54.33036366291807
March 2020 77.48436925340198
April 2020 44.374350601157786
May 2020 43.244252015527024
June 2020 51.93419965447307
July 2020 89.42077178872478
August 2020 63.590764331210195
September 2020 28.682044176379495
October 2020 28.651685393258425
November 2020 18.907103825136613
December 2020 20.49021336624934
January 2021 9.61556626050817
February 2021 41.55415850767803
March 2021 31.874145006839942
April 2021 25.855646100116413
May 2021 27.401847575057737
June 2021 54.50278353891497
July 2021 32.371050772181285
August 2021 29.097398328167557
September 2021 42.8675466545289
October 2021 31.17562206996033
November 2021 51.646652110625915
December 2021 72.77973395931141
January 2022 38.67664868435539
February 2022 51.87352172289307
March 2022 49.23756019261637
April 2022 38.09769966399587
May 2022 18.328651685393258
June 2022 31.719428926132835
July 2022 38.557006575900715
August 2022 37.49465948901991
September 2022 54.62439929179664
October 2022 39.64627231953964
November 2022 21.260301340214767
December 2022 14.46642329569573
January 2023 15.264187866927593
February 2023 36.5379085593789
March 2023 40.65823800923138
April 2023 48.37848932676519
May 2023 69.78083021916977
June 2023 68.0756724800473
July 2023 38.33600603716631
August 2023 45.76271186440678
September 2023 58.36513712612052
October 2023 45.6620223950765
November 2023 64.45966514459666
December 2023 58.344606019614474
January 2024 73.39101262470203
February 2024 63.95991383347383
March 2024 81.55506734167543
April 2024 82.54308337214718
May 2024 65.95513748191027
June 2024 60.92212053185978
July 2024 82.34228298468128
August 2024 57.57892200176721
September 2024 79.80791754509254
October 2024 50.98732232039954
November 2024 40.058255403955236
December 2024 54.789242505972105
January 2025 61.875821287779246
February 2025 64.8328032321843
March 2025 74.00535082419954
April 2025 39.82010759919301
May 2025 23.46855653307266
June 2025 57.282229965156795
July 2025 47.07606734816597
August 2025 43.566992014196984
September 2025 53.37205081669691
October 2025 61.12839059674503
November 2025 68.13338166002175
December 2025 45.26764079594684
January 2026 34.86786018755328
February 2026 50.69068583892076
March 2026 58.44081163230099