Zip Code: 91803 (Alhambra, 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 91803 Zip Code in November 2025 was 57.816.

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 91803 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: 91803 - Market Hotness: Trend of Supply Score
Zip Code: 91803 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 97.17588253670728
October 2017 93.41295017727188
June 2018 96.86897560327063
August 2018 98.59478794072561
September 2018 95.31448135937104
October 2018 95.32428355957768
November 2018 80.52515026890225
December 2018 73.0017990233873
January 2019 93.42998352553542
February 2019 95.00034338300941
March 2019 94.24315898856945
April 2019 90.79127811300054
May 2019 55.71105165671949
June 2019 81.54373697303839
July 2019 88.6966778061726
August 2019 96.35701275045537
September 2019 88.13898021014633
October 2019 73.91556932610379
July 2020 74.58819890186373
October 2021 57.0501262170934
November 2021 49.845342066957784
August 2022 66.16252243014613
September 2022 50.290869235308996
November 2022 76.75851161241988
July 2024 77.88667435348377
September 2024 85.53915827281955
October 2024 82.62005378409528
November 2024 46.84194389084777
December 2024 68.19758033443784
January 2025 76.11695137976346
March 2025 88.16777422974023
May 2025 62.81362007168458
July 2025 83.2306073361395
August 2025 90.27654540076901
September 2025 85.85843920145192
October 2025 55.20433996383364
November 2025 60.89887640449439
December 2025 57.816286070930325