Comparing County Corn Yields Nationally

Best and Worst County Corn Yield Averages in 2022

Katie Micik Dehlinger
By  Katie Micik Dehlinger , Farm Business Editor
The national average corn yield was 173.3 bushels per acre in 2022. Counties shaded green had yields that were higher than the national average, while those in red came in below average. (DTN map by Kathryn Myers)

MT. JULIET, Tenn. (DTN) -- Illinois may have set a record statewide average corn yield in 2022, but the nation's highest-yielding county can be found in Idaho.

Six of the nation's top 10 county corn yield averages come from Illinois, according to data from the National Agricultural Statistics Service Quick Stats database. Two of the top county averages come from Idaho, while two are found in western Colorado.

On the other end of the spectrum, the nation's worst county corn yield averages are found in the Southern Plains. Texas claims four spots, while Kansas and Oklahoma sport three apiece.

For context, we've included the number of planted corn acres. Some of the counties with the highest average yields also have small acreage like Mesa County, Colorado, which typically doesn't grow much corn. On the other hand, the more than 300,000 acres of corn grown in McLean County, Illinois, means it vastly outproduced the other counties on the list.

Among the states with the lowest yields, higher acreage matters, too. Rawlins County, Kansas, planted more than 100,000 acres of corn, but averaged only 34.1 bushels per acre, signifying major losses for producers.

1. ELMORE ID 247.3 19,500
2. STARK IL 240.6 86,200
3. MESA CO 237.9 3,300
4. WOODFORD IL 235.7 125,000
5. DELTA CO 235.3 4,200
6. OGLE IL 234.7 203,000
7. DE WITT IL 232.9 102,500
8. GEM ID 232.6 4,600
9. MACON IL 232.5 142,500
10. MCLEAN IL 232.3 312,000


1. OTTAWA OK 19.8 9,800
2. GARFIELD OK 22.5 22,800
3. LABETTE KS 27.7 38,000
4. CHAUTAUQUA KS 29.3 3,100
5. HAYS TX 30.1 2,900
6. GUADALUPE TX 33.5 23,200
7. RAWLINS KS 34.1 110,000
8. SAN PATRICIO TX 34.9 24,000
9. CORYELL TX 35 9,900
10. GRANT OK 35 15,000

Katie Dehlinger can be reached at

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Katie Dehlinger