Zip Code: 21104 (Marriottsville, MD) - Market Hotness: Trend of Demand Score (Realtor)
Updated on March 13, 2026.

According to data from Realtor.com, the market hotness: demand score for the 21104 Zip Code in May 2025 was 64.901.

You can see similar for other Maryland Zip Codes.

The chart and table below shows the trend of the market hotness: demand score for the 21104 zip code.

Note: Demand Score is an index representing the metro's unique listing page viewers compared to other metros.

Data Source: Realtor.
Zip Code: 21104 - Market Hotness: Trend of Demand Score
Zip Code: 21104 - Market Hotness: Trend of Demand Score
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Month Demand Score
September 2017 56.42611683848797
October 2017 78.82067549916029
November 2017 70.89646464646465
December 2017 65.89457384347376
June 2018 34.20195439739413
July 2018 44.21127397171822
August 2018 35.27721001532959
September 2018 47.17854425564291
October 2018 53.7770236299648
November 2018 41.87915216703575
December 2018 52.28090465176047
January 2019 47.39373970345964
February 2019 42.64816976855985
March 2019 41.04606858330447
April 2019 47.51782775644542
May 2019 59.051931124374015
June 2019 47.912324346130575
July 2019 75.54550815804994
August 2019 38.57663283892792
September 2019 37.123702700960486
October 2019 47.766589207332814
November 2019 55.30529878922016
December 2019 58.759051351889994
July 2020 31.83821823524863
September 2020 72.45089249327573
June 2025 64.90127758420441