The Department of Agriculture reports that Iowa corn growers produced 2.37 billion bushels in 2014, the third largest on record, 2 percent below the record high set in 2009.

The Iowa corn yield, at 178 bushels per acre, was the third highest on record, trailing the record high of 181 set in 2004. Four of the five highest yielding counties were in the Southeast District. Jefferson led all counties with a county-wide average of 200.9 bushels per acre.
High grain moisture levels kept harvest 1 to 2 weeks behind normal throughout October before more favorable conditions in November let the corn harvest finish on schedule.
Marion County production was at 172 bushels per acre. Surrounding counties with higher production were Jasper, Mahaska, Monroe and Polk. Lucas and Warren counties were not as productive.
Data from all area counties is listed below:
Marion 172
Jasper 191
Mahaska 190
Monroe 176
Lucas 154
Warren 170
Polk 181