Zip Code: 94028 (Portola Valley, 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 94028 Zip Code in November 2025 was 38.681.
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 94028 zip code.
Note: Supply Score is an index representing the metro's median days on market ranking compared to other metros.
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Related Topics: Zip Code: 94028 - Realtor House Inventory Topic List
Data Source: Realtor.
Zip Code: 94028 - Market Hotness: Trend of Supply Score
Zip Code: 94028 - Market Hotness: Trend of Supply Score
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| Month | Supply Score |
|---|---|
| October 2017 | 94.22155874852274 |
| November 2017 | 91.68560606060606 |
| May 2018 | 95.23744541484717 |
| June 2018 | 77.42471581466462 |
| July 2018 | 67.37909214179635 |
| August 2018 | 39.63336739908023 |
| September 2018 | 27.935582044128836 |
| October 2018 | 31.831322272498742 |
| November 2018 | 19.87345776652958 |
| December 2018 | 45.77229503983552 |
| January 2019 | 28.968698517298186 |
| April 2019 | 97.09956116291826 |
| May 2019 | 80.6956163819716 |
| June 2019 | 57.674981510119004 |
| July 2019 | 47.43463731079222 |
| September 2019 | 38.67079223876749 |
| October 2019 | 42.260521559514586 |
| November 2019 | 54.51113136310376 |
| December 2019 | 36.83651099448615 |
| April 2020 | 70.10538815496513 |
| May 2020 | 49.126604956703495 |
| June 2020 | 45.158867272590705 |
| July 2020 | 82.86288763436703 |
| August 2020 | 74.57802547770702 |
| September 2020 | 35.98500285271823 |
| October 2020 | 25.716921012912962 |
| November 2020 | 45.632618747372845 |
| December 2020 | 71.75983071768648 |
| January 2021 | 50.41088126948144 |
| February 2021 | 42.23436050705967 |
| March 2021 | 34.26812585499316 |
| April 2021 | 23.050058207217695 |
| May 2021 | 14.122401847575059 |
| July 2021 | 12.667810638942163 |
| October 2022 | 84.77616992468478 |
| November 2022 | 69.64122200948972 |
| June 2023 | 82.07705192629817 |
| July 2023 | 39.39251014055278 |
| June 2024 | 80.68554653773096 |
| July 2024 | 75.9759512436172 |
| August 2024 | 84.26379628885854 |
| September 2024 | 41.813070976809556 |
| October 2024 | 92.44717633499808 |
| November 2024 | 80.42311819714854 |
| December 2024 | 43.56168605995222 |
| April 2025 | 76.11802286482852 |
| May 2025 | 78.32355816226783 |
| June 2025 | 75.59427022841658 |
| July 2025 | 66.16055321707756 |
| August 2025 | 32.45341614906832 |
| September 2025 | 9.386569872958257 |
| October 2025 | 2.4954792043399636 |
| November 2025 | 12.062341428053642 |
| December 2025 | 38.6812541302592 |
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