Iowa Corn 46% Emerged as of May 17, 2026

What changed

USDA's weekly Crop Progress survey pegged Iowa corn emergence at 46 percent for the week ending May 17, 2026. This is a single-week snapshot from the agency's regular survey of crop conditions across the state.

Why it matters

Emergence is one of the first measurable milestones after planting. It tells us how much of the planted crop has pushed through the soil surface and is visible in the field. At 46 percent emerged by mid-May, Iowa's corn crop is moving along — but there's still more than half the acreage yet to show. Soil temperatures, moisture, and recent weather all play a role in how quickly the remaining acres catch up. Emergence pace could affect early-season stand counts and overall crop development as the season progresses.

What to watch next

• Next week's USDA Crop Progress report — worth watching to see how quickly the remaining Iowa corn acres emerge and whether the pace picks up or slows down.
• Weather patterns across Iowa — warm, moist conditions tend to speed emergence, while cool or wet stretches could slow things down. Local conditions may vary across the state.
• Neighboring states' emergence numbers — comparing Iowa's pace with Illinois, Minnesota, Nebraska, and other Corn Belt states can help put the 46 percent figure in broader context.

Source notes

• USDA NASS Quick Stats — Iowa corn emergence, 46 percent, week ending May 17, 2026. Value reported as "PCT EMERGED" (percent emerged). USDA NASS Quick Stats query