New: 2026 preseason crop forecast estimated

Every agricultural field in Lyman 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

60.3%

Corn

7.1%

Soybeans

5.9%

Open_Water

4.8%

Winter_Wheat

3.8%

Sorghum

3.4%

Sunflower

1.8%

Other_Hay/Non_Alfalfa

1.8%

Spring_Wheat

1.5%

Herbaceous_Wetlands

1.3%

Dominant Crop by Year

2008: Grassland/Pasture

66.2%

2009: Grassland/Pasture

67.0%

2010: Grassland/Pasture

63.1%

2011: Grassland/Pasture

62.5%

2012: Grassland/Pasture

63.4%

2013: Grassland/Pasture

64.7%

2014: Grassland/Pasture

61.9%

2015: Grassland/Pasture

62.1%

2016: Grassland/Pasture

61.6%

2017: Grassland/Pasture

60.3%

2018: Grassland/Pasture

60.2%

2019: Grassland/Pasture

59.3%

2020: Grassland/Pasture

58.9%

2021: Grassland/Pasture

58.4%

2022: Grassland/Pasture

57.6%

2023: Grassland/Pasture

57.8%

2024: Grassland/Pasture

66.9%

2025: Grassland/Pasture

60.3%

Crop History for Lyman County, South Dakota

New: 2026 preseason crop forecast estimated

Top Crops (2025)

Dominant Crop by Year