Zip Code: 51301 (Spencer, 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 51301 Zip Code in February 2026 was 23.232.

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 51301 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: 51301 - Market Hotness: Trend of Supply Score
Zip Code: 51301 - Market Hotness: Trend of Supply Score
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Month Supply Score
September 2017 28.39737582005623
October 2017 37.749580145549544
November 2017 22.279040404040405
December 2017 17.407574682237563
January 2018 12.465744268431255
February 2018 16.32865675788304
March 2018 19.273135480249774
April 2018 26.7816330770829
May 2018 29.899017467248907
June 2018 39.526690154889316
July 2018 53.61270743203978
August 2018 56.80889115993868
September 2018 73.31980725336038
October 2018 85.02388134741075
November 2018 66.44732679531793
December 2018 42.00719609354921
January 2019 24.14497528830313
February 2019 20.81587803035506
March 2019 27.114651887772773
April 2019 21.852715304443226
May 2019 23.276394319818895
June 2019 31.742082969138707
July 2019 32.7763580368259
August 2019 39.9232370543846
September 2019 46.780119899439185
October 2019 67.37671056028918
November 2019 73.14802760057285
December 2019 57.87550654354614
January 2020 53.35565787637784
February 2020 39.44063093325544
March 2020 24.73703567488047
April 2020 10.382959774380287
May 2020 6.89758136757241
June 2020 29.955682415683917
July 2020 77.54234011290697
August 2020 48.61464968152866
September 2020 50.56646833482762
October 2020 59.28224048297837
November 2020 26.51534258091635
December 2020 19.731969670252163
January 2021 30.017946538207234
February 2021 37.266824693393794
March 2021 30.6999544003648
May 2021 88.84526558891454
June 2021 75.31928828730487
July 2021 76.52165135762591
August 2021 71.89818728280267
September 2021 37.26900318616295
October 2021 15.677966101694915
November 2021 7.951237263464337
December 2021 16.74491392801252
January 2022 32.918639216118024
February 2022 24.362006722270635
March 2022 90.30230069555913
April 2022 45.45102093564228
May 2022 5.290262172284644
June 2022 29.019242706393545
July 2022 38.557006575900715
August 2022 28.50551140733145
September 2022 32.577354354607536
October 2022 48.58255056274858
November 2022 30.283859152584704
December 2022 20.562017149163765
January 2023 12.577833125778332
February 2023 2.9042461420492667
March 2023 1.8763796909492272
April 2023 4.248768472906404
May 2023 34.390465609534395
June 2023 13.824022071140012
July 2023 31.487595509857563
August 2023 20.438683948155536
September 2023 32.209106239460375
October 2023 84.93888366527054
November 2023 75.95974970404194
December 2023 95.57828880622252
January 2024 77.18725169947912
February 2024 62.245949236676964
March 2024 30.824338523259147
April 2024 9.641360037261295
May 2024 5.24602026049204
June 2024 10.689000172681748
July 2024 11.521989787514412
August 2024 10.474736926660775
September 2024 64.87858202545483
October 2024 65.70111409911641
November 2024 83.95676835811743
December 2024 63.71272250905447
January 2025 47.790735873850196
February 2025 17.1065073497808
March 2025 10.037110554932251
April 2025 6.271015467383995
May 2025 30.685891169762137
June 2025 16.151761517615178
July 2025 75.44347564642213
August 2025 69.34338952972493
September 2025 65.64065335753176
October 2025 59.23327305605787
November 2025 83.04458137006162
December 2025 54.01277626844849
January 2026 60.35030613035728
February 2026 50.69068583892076
March 2026 23.23174238067855