USDA Quick Stats › Illinois yield by year

Illinois corn, soybean & wheat yield by year

USDA NASS state yield estimates for Illinois, annual (end-of-season) figures only: corn (2010–2025, n = 16), soybeans (2010–2025, n = 16), winter wheat (2010–2026, n = 17). Every figure below is a USDA NASS number for the year shown; nothing is estimated or filled in by AGSIST. Source files updated Oct 6, 2026.

Corn · 2025 USDA NASS
214 bu/ac
  • Highest (2010–2025): 217 in 2024
  • Lowest (2010–2025): 105 in 2012
  • 5-year average (2021–2025): 210.6 bu/ac, n = 5 of 5 years
  • 10-year average (2016–2025): 203.3 bu/ac, n = 10 of 10 years
  • Trend (2010–2025): +4.60 bu/ac per year, n = 16 years (least-squares line, not projected)
Soybeans · 2025 USDA NASS
62.5 bu/ac
  • Highest (2010–2025): 65 in 2021
  • Lowest (2010–2025): 43 in 2012
  • 5-year average (2021–2025): 63.5 bu/ac, n = 5 of 5 years
  • 10-year average (2016–2025): 61.2 bu/ac, n = 10 of 10 years
  • Trend (2010–2025): +1.16 bu/ac per year, n = 16 years (least-squares line, not projected)
Winter wheat · 2026 USDA NASS
87 bu/ac
  • Highest (2010–2026): 88 in 2025
  • Lowest (2010–2026): 57 in 2010
  • 5-year average (2022–2026): 85.4 bu/ac, n = 5 of 5 years
  • 10-year average (2017–2026): 78.3 bu/ac, n = 10 of 10 years
  • Trend (2010–2026): +1.79 bu/ac per year, n = 17 years (least-squares line, not projected)
Current season, kept out of the table above. USDA NASS figures from AGSIST’s state crop file (data/state-stats.json), with that file’s own label:A forecast changes month to month and is not comparable with the annual estimates in the table.

Illinois yield by year

Newest first. Bushels per acre; planted acres in millions. Source: USDA NASS Quick Stats, state level. — means NASS published no figure for that year; “pending” means NASS has not yet released that crop year’s annual estimate (corn and soybeans come out in January).

YearCorn
bu/ac		Corn
planted, M ac		Soybeans
bu/ac		Soybeans
planted, M ac		Winter wheat
bu/ac
2026pendingpendingpendingpending87
202521411.262.510.388
202421710.86410.886
202320611.26310.3587
202221410.86310.879
2021202116510.679
202019111.36010.368
201918110.5549.9567
20182101163.510.866
201720111.25810.676
201619711.65910.174
201517511.7569.865
201420011.9569.867
201317812509.567
201210512.8439.0564
201115712.647.58.9561
201015712.651.59.157

Top Illinois counties by 2025 corn yield

USDA NASS county corn-for-grain yield, 2025, all practices. NASS published a 2025 figure for 64 of the 102 counties in the Atlas; counties without a published figure are not ranked. The last column compares with the Illinois state yield of 214 bu/ac.

#County2025 bu/acvs state
1Stark County253.6+39.6
2DeKalb County244.4+30.4
3McLean County243.1+29.1
4Marshall County239.9+25.9
5Carroll County239.2+25.2
6Tazewell County239+25
7Macon County238.6+24.6
8Peoria County238.2+24.2
9Rock Island County236.7+22.7
10Knox County236.4+22.4
How these numbers are made. Yields and planted acres are USDA NASS Quick Stats state estimates, pulled with the reference period pinned to the full year, so in-season monthly forecasts never enter the table. Highest and lowest are over the published years shown, not all-time records. Averages are plain means of the published years in the stated window, printed with how many years they rest on (withheld below 3 of 5 or 6 of 10). The trend is an ordinary least-squares line through every published year (at least 8); it describes the past window and is not a forecast. County figures are NASS county corn yields, all practices, as carried by the AGSIST Farmland Atlas. Wheat here is winter wheat only (NASS “WHEAT, WINTER”); spring wheat and durum are not included. AGSIST’s NASS pull carries no state winter wheat planted-acres series, so no wheat acres column is shown.

Related: corn & soybean yields for every state (USDA Quick Stats) · Illinois Farmland Atlas: every county · Illinois cash rent by county · Illinois cash basis today.

Yield by year in other states

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