I am in the camp of price is too high. Unfortunately you have a nice house in a crappy real estate market. I would love that house and the property taxes.
Looking at the info I see that only 20% of the homes sold in all of Marshalltown were $150k or higher.
There were three homes that sold in your development in the last six months:
2712 Rockton - $146k, 3336sf, $44/sf
2459 Jefferson - $101k, 1244sf, $81/sf (I suspect there is SF that is not incorporated)
2456 Malta - $120k, 1844sf, $65/sf
There is also one currently for sale:
2443 Jefferson - $100k, 1920sf, $52/sf
Dime store conclusion is that you are probably too high if you want to sell quick, but there may be a buyer at your price point if you are willing to wait a while. For your town you are essentially the upper class so your potential buyer pool is limited. Average listing price is $89k so you are almost double the area. Population for your area is down 2% from last year so that is not good. Real estate is not liquid as you know, but throw in a small town dynamic and it is even less so.
Setting aside all that though, it also hurts you if you have the nicest most expensive house in your development.
Good luck but you may have to be prepared to go down to $135k or so to move it.