I'm in Sigourney
Ottumwa has 2 quilt shops that I know of,
1st (On Main, first building east of Unemployment office) doesn't have much fabric as it is more of an antique store but they do have every DMC floss you could want hehe.
The 2nd (The Sewing house, on North davis just off church st sorta near taco johns ) is an awesome place and the fella that owns/operates it is great so are the staff always helpful and polite.
They have scads of fabrics and last I was in there they were getting the bali batiks in. they also sell Janome machines and service bout anything that walks in the door.
Osky on the other hand the only place that has any fabric is Walmart but they do have a nice selection and the regular ladies that work the cutting table are always helpful and know what they're talking about (most of them anyway)