Zip Code: 21561 (Swanton, MD) - 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 21561 Zip Code in February 2026 was 3.656.

You can see similar for other Maryland Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 21561 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: 21561 - Market Hotness: Trend of Supply Score
Zip Code: 21561 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 13.983130271790065
October 2017 7.694221558748522
November 2017 4.633838383838384
December 2017 6.581069746435254
January 2018 5.1266626562395565
February 2018 5.507709404083901
March 2018 3.936013470848242
April 2018 3.9268647413255766
May 2018 16.894104803493452
June 2018 15.163198830020608
July 2018 28.462581519984504
August 2018 50.73454266734798
September 2018 32.380167385239666
October 2018 17.69733534439417
November 2018 11.357165453970262
December 2018 5.557697250064251
January 2019 4.039538714991762
February 2019 4.367831879678594
March 2019 4.523727052303429
April 2019 3.9358200767964897
May 2019 3.327159223434177
June 2019 19.612721038122775
July 2019 20.083873927003474
August 2019 18.000260213374965
September 2019 7.7999097531102946
October 2019 3.9052414149238315
November 2019 2.3759927092826456
December 2019 6.822560286985984
January 2020 6.508999581414818
February 2020 14.422374762669781
March 2020 7.657226921662376
April 2020 9.210331007867003
May 2020 24.484920871902062
June 2020 18.876286336663412
July 2020 16.50297734127291
August 2020 21.393312101910826
September 2020 31.143532480234736
October 2020 10.32198557772933
November 2020 13.493064312736443
May 2021 88.15242494226328
June 2021 46.828948804715644
July 2021 46.805289189461995
August 2021 16.305062458908612
September 2021 7.938097405553027
October 2021 11.206274792643347
November 2021 25.163755458515286
January 2022 6.85896730155235
July 2022 63.165694174307674
August 2022 32.025976245407165
September 2022 35.916027316415146
October 2022 36.151307438436156
November 2022 22.30084075584783
December 2022 11.970455896086255
January 2023 6.546877779754492
February 2023 3.1342854404294065
March 2023 0.963275135460566
April 2023 1.1186371100164203
May 2023 1.2725987274012727
June 2023 4.975859690609912
July 2023 24.601452693142157
August 2023 12.652950240188526
September 2023 11.00559155054584
October 2023 4.838020343619113
November 2023 28.9108743446643
December 2023 5.782888062225228
January 2024 23.51902533768871
February 2024 28.95007961037745
March 2024 23.497946317699874
April 2024 12.380065207265952
May 2024 7.995658465991316
June 2024 30.676912450354
July 2024 33.95651457749958
August 2024 20.877178889870674
September 2024 10.798781916139612
October 2024 11.117940837495198
November 2024 5.564924114671164
December 2024 2.8049626261847886
January 2025 15.423784494086728
February 2025 8.931488008252385
March 2025 9.81272115301631
April 2025 89.19804976462676
May 2025 65.91723688497882
June 2025 62.9500580720093
July 2025 53.487672880336746
August 2025 33.14108251996451
September 2025 9.386569872958257
October 2025 3.2911392405063293
November 2025 4.095686843059079
December 2025 5.5437256773625085
January 2026 3.2628070991242346
February 2026 3.045480248808466
March 2026 3.6556313152057833