Zip Code: 81021 (Arlington, CO) - Trend of House - Median Days on Market (Realtor)

Updated on March 13, 2026.

According to data from Realtor.com, the median days on market for houses in the 81021 Zip Code in August 2025 was 136 days. The month over month percentage change (MoM) was 0.2967%.

You can see similar for other Colorado Zip Codes, and for Colorado.

The chart below shows the trend of the median days on market for houses in the 81021 zip code. The table below shows the trend, and the MoM and YoY percentage changes.

Data Source: Realtor.
Zip Code: 81021 - Trend of House - Median Days on Market
Zip Code: 81021 Trend of House - Median Days on Market
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Month Med. Days on Market MoM Perc. Change (%) YoY Perc. Change (%)
May 2025 14
Jun 2025 52 2.8148
Jul 2025 83 0.6117
Aug 2025 105 0.259
Sep 2025 136 0.2967