Crop History for Polk County, Iowa

2008–2026 · USDA CDL + 2026 ML Forecast

New: 2026 preseason crop forecast estimated

Every agricultural field in Polk County, Iowa now has a calibrated 2026 crop probability — corn, soybean, wheat, cotton, rice, and 16 other classes. Backtest accuracy: F1 ≈ 0.76 corn, ≈ 0.79 soy. View 2026 forecast on the map →

Top Crops (2025)

Corn

20.4%

Soybeans

15.6%

Developed/Low_Intensity

12.9%

Grassland/Pasture

12.1%

Developed/Med_Intensity

9.6%

Developed/Open_Space

7.8%

Deciduous_Forest

5.6%

Woody_Wetlands

3.4%

Open_Water

3.1%

Developed/High_Intensity

3.1%

Dominant Crop by Year

2008: Corn

21.8%

2009: Corn

23.8%

2010: Corn

23.0%

2011: Corn

24.0%

2012: Corn

23.8%

2013: Corn

23.5%

2014: Corn

23.1%

2015: Corn

22.4%

2016: Corn

23.7%

2017: Corn

22.2%

2018: Corn

22.1%

2019: Corn

22.2%

2020: Corn

22.7%

2021: Corn

19.3%

2022: Corn

20.4%

2023: Corn

19.6%

2024: Corn

20.1%

2025: Corn

20.4%

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