In 1884 the Democrat party produced a falsified map showing how much the railroads had been given by the Republican congress. The map however included all possible land grants even alternate routes and multiplied it by 4. It showed 80% of what state was owned by the railroads?
I’m going with Iowa. Indiana bacame a state in 1862, Illinois a year or two on either side. Iowa would still be sparsly populated enough that land was available to grant and it was on many transcon routes which helps rule out Idaho.
I’ll guess Iowa because historically, it developed later than the other two Midwestern “I” states. Idaho has a lot of railroad trackage but even more mountains, so I doubt that development could cover eighty percent of anything – even twenty percent would be a stretch.
I would say Iowa… I recall a quote from a magazine article from a long time ago (I think it was TRAINS, but I will not swear to it) that at it’s peak of prosperity, there was no place in Iowa that was further than 12 miles from a railroad line.
Keep in mind that, regardless of what the map showed, 80 percent of the land couldn’t have been owned by the railroads. It would possibly be true to state that 80 percent of the land was land-grant territory, but the land grants were for every other section (square mile) in a checkerboard pattern.
The maps of land-grant lines I’ve seen don’t show anything close to 80 percent coverage, but Iowa looks to be the winner, at any rate. Indiana had no land-grant railroads.