Illinois. I’ve heard only strewn, never strown.
I’ve never heard or read “strown” before, but I am determined to use it in the next week.
How about “brang”? As in, “The potluck supper was a big hit, but that boy Imelda brang was a bit odd.”
Another data point- my husband who grew up in the south also has heard of strown.
I’ve always said “strewn”. As far as I can remember, I never even read the word until just a few months ago when I ran across “In summertime on Bredon” from “A Shropshire Lad”.
NY, never heard “strown” until now.
Never, ever heard the word “strown.” (Neither has my spellchecker.) Sounds like something outta Shakespeare.
British – grew up in the English Midlands. I rarely use the word at all, and seldom come across it being used in real-life interaction with people. I honestly don’t believe I have ever said the word out loud: had to think hard, whether I and fellow-Brits I know, would say “strown”, or “strewn”. I think “strown” has it, but am honestly not 100% sure. My vote is thus for “neither” – just for there to be a vote in that category !
Well, a post-tornado house might be strewn about the neighborhood…
English here, only ever heard strewn.
Strown* sounds like* a Scots or Northcountry variant.
( Northcountry = Northumberland, Cumberland, Westmorland, Durham and parts of the adjoining countries. )
Never heard “strown” before. Always “strewn”.
Another vote for this. Spent most of my life in Illinois, and hardly any time south of the Mason-Dixon.
So weird. On the Facebook poll, which has a lot more Deep South reared folk, it is about half-and-half, but completely 100% along regional lines. This may be the most delineated regional pronunciation difference I have found.
I think I voted wrong in the poll. I have always known that the word is strewn as in “Jack left his clothes strewn about the room” but have usually heard it pronounced as if it rhymed with throne. I grew up in Middle Tennessee.
Only “strewn.” but not in the sense that a cluttered house is “strewn,” but that the clutter itself may be “strewn all over” or a kid may leave his clothes “strewn around” his room.
British. Never heard “strown”. Have often heard and used “strewn”. Have also heard “strewed”.
Like others, I have never heard of “strown.”
Hmm…debris from a demolished house might be strewn about the neighborhood, but a singular object isn’t strewn.
Pronounced “strown” and used fairly often. I’ve never heard it pronounced the other way.
East TN.
phouka if you want to sound authentic, say “that boy was kindly funny-turned.” 
You may have hit on a connection! The US South was largely populated by such folk (plus Scotch-Irish), IIRC.
I’m not a native speaker and I don’t remember when I learned the word but “strown” seems correct to me.
I see my spell-checker prefers the other.