Zip Code: 04421 (Castine, ME) - 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 04421 Zip Code in September 2024 was 8.959.

You can see similar for other Maine Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 04421 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: 04421 - Market Hotness: Trend of Supply Score
Zip Code: 04421 - Market Hotness: Trend of Supply Score
0 of 0
Month Supply Score
September 2017 7.104029990627929
October 2017 1.9531007028674503
November 2017 1.130050505050505
December 2017 1.6452674366088136
January 2018 0.8154535124657444
February 2018 0.6042505903597722
March 2018 0.21749807058163195
April 2018 0.02077706212341575
May 2018 0.02046943231441048
June 2018 0.06647610184138801
July 2018 47.38167495318654
August 2018 59.50434338272866
September 2018 35.613745878772505
October 2018 26.395173453996986
November 2018 9.93356532742803
December 2018 4.356206630686199
January 2019 2.3986820428336078
February 2019 0.8172515623926927
March 2019 0.37409075164530653
April 2019 0.143993417443774
May 2019 0.08232146532208273
June 2019 0.060512337793316745
July 2019 16.728916846864557
August 2019 13.979963570127504
September 2019 9.063366208986013
October 2019 4.6991995868835525
November 2019 2.8511912511391744
December 2019 0.7905400916760779
January 2020 0.3139388865634157
February 2020 0.12414195998247407
March 2020 0.05148951820522251
April 2020 0.029686804215526198
May 2020 0
June 2020 0.015022909937654923
July 2020 9.17949114530972
August 2020 94.98407643312102
September 2020 39.832097155432386
August 2024 9.695557876134629
September 2024 14.851253220894822
October 2024 8.958893584325779