New: 2026 preseason crop forecast estimated

Every agricultural field in Sanborn County, South Dakota 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)

Grassland/Pasture

41.6%

Corn

23.0%

Soybeans

14.8%

Herbaceous_Wetlands

5.2%

Alfalfa

3.8%

Developed/Open_Space

3.0%

Other_Hay/Non_Alfalfa

1.4%

Sorghum

1.1%

Open_Water

0.9%

Developed/Low_Intensity

0.8%

Dominant Crop by Year

2008: Grassland/Pasture

50.9%

2009: Grassland/Pasture

48.3%

2010: Grassland/Pasture

38.2%

2011: Other_Hay/Non_Alfalfa

35.6%

2012: Other_Hay/Non_Alfalfa

29.7%

2013: Other_Hay/Non_Alfalfa

27.5%

2014: Other_Hay/Non_Alfalfa

27.8%

2015: Grassland/Pasture

41.2%

2016: Grassland/Pasture

41.4%

2017: Grassland/Pasture

35.5%

2018: Grassland/Pasture

30.5%

2019: Grassland/Pasture

32.8%

2020: Grassland/Pasture

32.2%

2021: Grassland/Pasture

37.1%

2022: Grassland/Pasture

32.4%

2023: Grassland/Pasture

37.5%

2024: Grassland/Pasture

47.8%

2025: Grassland/Pasture

41.6%

Crop History for Sanborn County, South Dakota

New: 2026 preseason crop forecast estimated

Top Crops (2025)

Dominant Crop by Year