Corn Belt Text Survey Pokes Holes in USDA's 180-Bushel Yield Math

USDA's October corn yield estimate of 181.2 bushels per acre just met a text-message poll of Corn Belt growers — and the growers' answers don't add up to a second straight year above 180.

That's the punchline of an informal survey run by an AgMarket-affiliated farmer and market adviser who farms near Charleston in east-central Illinois. Just hours after wrapping up his own 2026 harvest, he texted clients a single question: "Rate your crop for me on a scale of 0 to 5. 0 is a disaster; 5 is a record."

It's not science, and he says so plainly. But the results cut against the direction USDA has moved this fall.

What did the survey find?

The average corn score across all responses came in at 3.4 out of 5. The adviser read that as a crop "better than APH but not close to a record." Only one respondent in the entire set believed they set a record this year.

On soybeans, the picture tilts stronger. Most respondents rated their beans better than their corn, though just two growers reported records. The adviser's takeaway: USDA may be "a touch high" on soybean yield, but the gap is small — and he agrees with the agency's big-picture call that bean yields outperformed corn this year.

The survey has real gaps. He collected no responses from Minnesota, which looks likely to post high yields this fall, and none from Kansas or Nebraska — the two states he calls the current swing factors on national yield.

What does this change for USDA's numbers?

Context matters here. Last year produced the first national average corn yield above 180 bpa, at 186.3. After the shock upward revision in the October World Agricultural Supply and Demand Estimates, USDA now projects a second consecutive year above 180. To get there, yields don't need to match 2025's 186.3 — but they need to come close.

A 3.4-average sentiment score, spread across all U.S. corn acres, wouldn't get there, in the adviser's judgment. "These few responses don't scream big corn yields to me," he wrote. He's careful with the caveat: there's no reason to assume his handful of texts represents every acre.

There's also a housekeeping revision worth noting. On Oct. 23, USDA revised its September yield estimate higher but left October's number untouched. That move wasn't market-moving — September's data is already stale — it simply shortens the bridge between the September and October figures.

How did his own farm do?

His east-central Illinois operation farms ground ranging from "really good to really average," and 2026 delivered a good crop that he stops short of calling great. An otherwise near-perfect growing season took a hit from an unseasonably wet June — his home farm caught 11.5 inches of rain that month.

The numbers, before he's dug into the full yield data:

• Corn: 8 to 10 bushels above actual production history, roughly equal to last year, and 5 to 7 bushels short of a farm record. He rates it a 4 on his own 0-to-5 scale.
• Soybeans: a few bushels above APH, a few bushels short of a record, and 5 to 7 bushels better than last year — though 2025 beans were poor thanks to a super-dry August.

When does the argument get settled?

USDA can still adjust yield in both the November and December WASDE reports, but the adviser doesn't expect a big move until January, when final yield numbers drop. Until then, the market's job is guessing where that January figure lands.

His money is on the low side. He expects January's final corn yield to come in below the 181.2 bpa USDA printed in October — a call built less on his own survey than on the distance between a 3.4-sentiment crop and a 180-plus national average.

For growers watching basis and input margins, the practical question is simple: if January confirms a sub-181 yield, the supply picture tightens modestly after two months of USDA leaning the other way.

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