Anyone know a place east of Johnson Creek, North of Kenosha, and all the way up I-41 to Green Bay where I could walk into a store-front and pick up 50lb bags of steel cut or rolled oats? We eat a lot of oatmeal and the "bulk" Quaker Oats at Costco aren't cutting it anymore.

Or is Webstaurant Store (link) my best bet, shipping costs included?

Find an Amish store around there.  
They sell a lot of bulk stuff at pretty good prices.

There's an Amish  store on hwy 16 just west of hwy26 .
I'll stop in this week and check what they may have.
?

Good idea, I will explore that further. Edit to add: in response to Kapusta.

Gibson Corner Grocery in Reedsville? I have relation nearby, so a trip there might just be in the cards. I appreciate the suggestion and any updates you provide!

We usually stop at the one just south of Thorp off CTH M.  I'm partial to their 5# bags of cheesy poofs.

That's the place.
You could just give the store a call.
??..yuk yuk yuk.
Lol.

I spoke to soon.
Apparently there is a phone to call.


https://m.facebook.com/gibsoncornergrocery/

Hehe.

Thanks for the lead - I'll give them a call or have my Mrs. send them a FB message.

The Amish in my neighborhood use cell phones, wifi, their homes are as bright at night with electric light as any other...
.
All i can say is when you got Amish driving around in chrome diamondplate buggies with truck buckets n shit, that ain't plain. My area has become the destination for all the Amish that can not get along with the rest because of the "plain-less-ness". We also got a lot of 'ghosts' n dirtballs.
When my zoning Controversy really got going one of the AF geek squak did some wardriving, got the creepers clocked from what i heard before i got cut out of the loop.
I asked them to clone and drop some "lost" cell phones, for personal reasons I have been  kept out of that loop but i'm sure the porn is flowing hard.

When my Amish neighbors moved in i did the "wallet drop test" on my road. WE set up a wallet wth IDs phone number inside and around $50 cash. We even had a card in there with a number for a reward. Made it look like a hunter dropped it.
We did the same test in other areas placed with both local and "strange" IDs. Every local was returned, every strange gone forever. Out West WI where one of the crew lives is heavy Amish and he gets along, translates for me and can not believe that the community around me exists as it does. When i told him about how my area is the repository for the "losers" he seemed to agree after checking things out.
There are certain times of the year when some National level honchos, elders n bishops show up, behavior, yards, appearances change drastically, trailers disappear, my Amish neighbor, with the chrome diamondplate mailbox, hides his Komodo Big Joe grill.

Doing background checks...? I got a neighbor kingpin that goes back decades. Borntreger, Borntrager. Bontrager, Bontrager, etc etc

They got good oats tho.

Check this place out, I've only heard about them, good things. I was scoping their operation at one point to learn/copy some operational and techniques back when i was farming.

http://www.meuerfarm.com/wholegrains.html

Many local co-ops have buying clubs for bulk goods that aren't advertised. I belonged to a co-op for years, hardly ever set foot in the place, every month i would tag my bulk order along with theirs,  along with a lot of other members. I was making my own dog food for six working Huskies and the wholesalers truck would stop at my farm to drop off my orders after the first big order.

The bagged oats sold in the amish store come from a wholesaler. I watch the trucks unload at the store down the road from me. The vegetables, bulk bags or bins of staples and crops... they usually come from the wholesale vegetable auction house.
IF  an Amish grew it it got sold through the auction, not some guy in a buggy dropping off his hard grown goods.

I used to go to the same auctions and see my Amish neighbors buying there for their store and roadside veggy stand.
The pies and pastry from the Amish bakery, pie filling from "Sysco" or the 'scratchndent', the jams and jellies, bulk fruit from the wholesale auction or bagged frozen shit from salvage auctions, dent can,outdated shit.
Unless you KNOW who and what you are getting F2F type knowledge i would assume you are getting the cheapest goods they can get to re-sell.

The "good stuff", the homegrowm, they pretty much keep for themselves.

Thanks, I'll look into this as well.