Zip Code: 51040 (Onawa, IA) - Market Hotness: Trend of Hotness Score (Realtor)

Updated on March 13, 2026.

According to data from Realtor.com, the market hotness: hotness score for the 51040 Zip Code in November 2025 was 18.426.

You can see similar for other Iowa Zip Codes.

The chart and table below shows the trend of the market hotness: hotness score for the 51040 zip code.

Note: Hotness Score is an equally-weighted composite metric of a geography’s supply score and demand score.

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Zip Code: 51040 - Market Hotness: Trend of Hotness Rank (Realtor)

Related Topics: Zip Code: 51040 - Realtor House Inventory Topic List

Data Source: Realtor.

Zip Code: 51040 - Market Hotness: Trend of Hotness Score

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