Statistics for occurrence #1 of “Iowa” in entry wool of Harper's Encyclopedia of United States History:

...915,838,3697,760,800 Michigan1,340,4568,981,0554,310,906 Indiana647,3994,250,0942,337,552 Illinois616,0374,004,2412,002,121 Wisconsin726,0404,719,2602,312,437 Minnesota409,1572,761,8091,242,814 Iowa 586,6443,813,1861,715,934 Missouri570,1283,420,7681,710,384 Kansas270,7162,165,728714,690 Nebraska315,9372,448,462856,962 South Dakota372,7172,422,661969,064 North Dakota362,5122,356,328924,531 ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Iowa (Iowa, United States) 1,742 310 0 0 0 user votes
Iowa (Iowa, United States) 0 0 0 0 0 user votes
Iowa (Louisiana, United States) 0 0 0 0 0 user votes
Iowa (Pennsylvania, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.