Zip Code: 21791 (Union Bridge, MD) - Market Hotness: Trend of Hotness Rank (Realtor)

Updated on March 13, 2026.

According to data from Realtor.com, the hotness rank for the 21791 Zip Code in May 2020 was 9,243. The year over year change (YoY) was -2,308.

You can see similar for other Maryland Zip Codes.

The chart below shows the trend of the hotness rank for the 21791 zip code. The table below shows the trend, and the YoY changes.

Note: Hotness rank refers to the rank by hotness score. A rank value of 1 is considered the hottest (highest Hotness score).

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Zip Code: 21791 - Market Hotness: Trend of Hotness Score (Realtor)

Related Topics: Zip Code: 21791 - Realtor House Inventory Topic List

Data Source: Realtor.

Zip Code: 21791 - Market Hotness: Trend of Hotness Rank

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Month	Hotness Rank	YoY Change
September 2017	1588
October 2017	3629
November 2017	4161
December 2017	7278
January 2018	7385
May 2018	3088
July 2018	8143
August 2018	6322
September 2018	1676	88
October 2018	4615	986
November 2018	7287	3,126
December 2018	1824	-5,454
April 2019	10633
May 2019	9790	6,702
June 2019	11551
July 2019	11830	3,687
August 2019	11791	5,469
September 2019	10646	8,970
October 2019	9318	4,703
November 2019	8484	1,197
December 2019	7341	5,517
January 2020	8949
February 2020	9108
June 2020	9243	-2,308