Found this for live mealworms. Not all that cheap but since "cheap" is a relative term, it at least appears to be a US company. Every other source I found quickly seems to reference buying from pet stores.

http://thenaturesway.com/c-1-mealworms-tenebrio-molitor.aspx

As to the dried version, I've found them just as you probably have at Tractor Supply, Wal Mart and just about every other business that has a reasonably stocked pet department. I haven't ever read the bag though to see where they were grown and packaged. I've bought a bag/container or two of dried mealworms over the years but they were so dehydrated that they birds weren't interested and the "husks" quickly blew away. We used to buy them live from a local bait house when we went brim fishing but that was years ago when live fish bait was pretty darn cheap.

Could be that like many other products though, there may not be a big enough market or profit margin for a person to start a bulk mealworm growing operation, therefore the China/overseas connection.

Thanks TXSkeeter! That site looks good. Is it just understood that the worms would be grown in the U.S.? I wonder which size would be good for winter feeding? Thanks again.

I found this place, but It’s four times the price of the ones I use for my bluebirds ( China).

https://vita-mealie.weebly.com/

Live mealworms may also suffer from relatively slow sales since even people that feed mealworms to their pet lizards, birds, and so on probably don't buy in bulk unless they're a breeder of such critters and therefore would have a constant and possibly even a daily need for such fare. As to a reasonable size to start with? The giant size might feed a few general population birds but without some care, it seems that you'd go though a container pretty quick. The smalls look tiny and you'd probably have to ration out a few more than you'd like to make a container last any amount of time. The medium size is what I'd try if I were that interested in feeding mealworms to draw in certain species. Price is right and there are enough that your mealworm experiment could last long enough for observation of any species that are drawn in just because of that addition to whatever you've been feeding on a regular basis.

Long ago, I decided that within reason, if I had to ration what relatively small amount of funds I use for feeding the wildlife that comes to my little backyard compared to the enjoyment it brings me, I'd probably just take down my feeders and quit buying raw peanuts for the blue jays and that one damn ornery (but cute) squirrel that visits daily. I fully realize that not every budget is flexible enough to do that but I figure that I'm only here on this earth for a short while so why not enjoy what impacts my life and brings joy to my eyes while I'm here.

Perusing a few websites on raising your own mealworms seems to be quite popular and while it doesn't look like the initial outlay would be much, would you use enough of the little buggers to make it worthwhile even if you just counted time and what space is required? Reading over those sites does remind me of a time not that long ago when every fishing and hunting magazine in existence (and they may still have them) had ads touting raising your own bigger and better fishing worms! "Yes Friends, you too can raise enough of my extra special extra large energetic red wigglers and nightcrawlers to go fishing any time you want and you'll never run out of fish bait!!!! Get your starter pack of worms NOW and in only days you'll have more worms than you can use. Send only $19.95 to PO Box XXXX, to get started." Not... Problem is that nightcrawlers won't live south of the Mason Dixon line unless you keep them in a refrigerator and most little red wigglers are just on the borderline of being so small that you almost have to use tweezers to put them on your fish hook. Too, both types have to be kept practically n the dark to keep them happy, temperature and moisture levels have to be maintained and appropriate worm food is not as easy to manage as they would have you think.

Oh wait... the subject was mealworm acquisition, not fishin' worms. It appears I have strayed off subject again. Sorry bout that.

Thanks for all the great info TXSkeeter and Suzanne!

Thanks for that info gyr_falcon!