Zip Code: 51537 (Harlan, IA) - 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 51537 Zip Code in February 2026 was 29.048.

You can see similar for other Iowa Zip Codes.

The chart and table below shows the trend of the market hotness: supply score for the 51537 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: 51537 - Market Hotness: Trend of Supply Score
Zip Code: 51537 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 8.972196188691035
October 2017 16.787957952354297
November 2017 10.719696969696969
December 2017 61.43622169172205
January 2018 47.10246641267295
February 2018 35.359077649673566
March 2018 23.117940082789588
April 2018 12.964886765011427
May 2018 9.020196506550219
June 2018 22.827893372332646
July 2018 7.9744301672370375
August 2018 5.710270822687788
September 2018 6.52422013695156
October 2018 38.06561085972851
November 2018 40.34166403037013
December 2018 38.209971729632485
January 2019 36.98846787479407
February 2019 48.327724744179655
March 2019 30.162798753030827
April 2019 18.938562808557325
May 2019 13.48700006860122
June 2019 30.760438378269345
July 2019 44.492497215123514
August 2019 37.11293260473588
September 2019 32.6178044220976
October 2019 17.667183062225664
November 2019 18.01197760708241
December 2019 16.94678801567794
January 2020 14.148179154457932
February 2020 7.514239813056814
March 2020 13.740345715336522
April 2020 30.97818019890159
May 2020 29.79247536578083
June 2020 56.140614437016445
July 2020 41.651844404918414
August 2020 11.154458598726116
September 2020 10.123074415192763
October 2020 12.98004360221365
December 2020 88.43237524246165
January 2021 94.1154245773118
February 2021 59.692878491188296
May 2021 89.5958429561201
June 2021 51.893898046064834
July 2021 28.545472897950948
August 2021 40.37757114680191
September 2021 29.74055530268548
October 2021 12.612693833393438
November 2021 5.622270742358078
December 2021 85.641627543036
January 2022 79.50016514367499
February 2022 51.87352172289307
March 2022 50.81594435527019
April 2022 13.750323080899458
May 2022 20.353464419475657
June 2022 14.152700186219738
July 2022 32.00889135871075
August 2022 41.13475177304964
September 2022 40.13152348031363
October 2022 17.644072099517643
December 2022 41.92206469139995
September 2023 76.88825774385373
October 2023 49.79912813060945
November 2023 26.297987485202096
December 2023 49.80554616165032
January 2024 70.42464906859716
February 2024 15.26646061627798
March 2024 11.538828923488394
April 2024 3.4466697717745696
May 2024 4.558610709117222
June 2024 5.430840960110516
July 2024 17.20474386427277
August 2024 17.89701984095108
September 2024 7.082064495978761
October 2024 3.772570111409912
November 2024 19.61520772650621
December 2024 72.11219850504739
January 2025 68.72536136662286
February 2025 21.275681251611793
March 2025 10.459998273927678
April 2025 13.256556825823807
May 2025 92.89670902574129
June 2025 61.564072783584976
July 2025 31.479254359591103
August 2025 38.47973972197575
September 2025 65.64065335753176
October 2025 51.13924050632911
November 2025 33.38166002174701
December 2025 16.410896541596298
January 2026 43.191505851352396
February 2026 39.3650537200097
March 2026 29.04789287768011