I have 14 acres. It is part of a 500 acre farm that was divided up when the 100 year old owner died a few years ago.
StG
We have 5.9 acres in the foothills out in rural California. The front half is meadow and the back half is oak trees and it has a fantastic view of the snow-capped peaks of the southern Sierra Nevada. Plus, we back up against rangeland so there won’t ever be anybody behind us. Plots where we live are generally between 4 and 6 acres. But there are four huge family cattle ranches up here that are interspersed between the smaller plots so there is lots and lots of open space, albeit fenced.
We have 25 acres, with about 2 acres being “yard”. The rest of it is wooded. We have a “stream” (which is really more swamp in the spring), a frog pond, and miles of trails.
I would love that, just to be able to roam around in the woods and think “This is mine… all mine!” (insert maniacal laughter here)
Our yard is almost 1/2 acre on which we have a small garden . I also inheirited about 50 acre of woods down in the rural part of the state. I have only seen once a couple of years ago
Yep, it’s cool owning a piece of the Earth, no matter how small. 
My coworker owns 40 acres and does jack-shit with it. I own none and beg the landlord for a few feet to garden in.
Go figure.
I own 1/2 an acre at the end of a cul de sac so it’s kinda shaped like a slice of pie. My backyard looks huge even though it’s an odd shape.
I have about 10,000 square feet, which, might be an eighth of an acre. But I live, if not exactly in the city, at least in the high-density zone surrounding it. I’d hesitate to call it a suburb, on account of the absence of grass.
About as much as I can fit in my pocket.
I have about 2.5 acres. Pie shaped on a cul de sac. Lots that size go for about $80,000 CDN in my neck of the woods. I can’t imagine moving back to the city.
My house sits on .14 acres or so. Depressingly small, but given the house prices here, it was about the best I could afford last year.
Back in Texas, however, I’ve got 1/8th share in 221 acres. It’s a shame that the land there isn’t as in-demand as it is here.
I have 2.5 acres in the suburbs of Boston. Land was a high priority for me when we bought a house. My in-laws have a weekend farm in New Hampshire that has 300 acres. Now that is BIG. I am supposedly the only person know to walk around the perimeter and it took me the better part of a day. I grew up on 100 acres in L0ousisna and loved it. It is cool when you can shoot a cannon on your property and everyone else just figures it is thunder.
Land can be almost any price in the U.S. from basically free in undesirable parts of the west to hundreds of thousands of dollars and acre in desirable coastal suburbs.
We live in the middle of nowhere on roughly 9 acres. Only about 2.5 of it is flat, but that’s plenty for us. If we could afford the payments (which right now, we can’t) it would be quite easy to buy 100’s of acres. There is a piece of land measuring about 90 acres just up the road from us for sale. Depends on where you live in the US, mostly.
My land is a front lawn, about 15’x15’, then a house, about 15’x60’, then a back yard about 15’x25’ which is mostly a brick patio.
I still like to stand in the middle of my front yard and pretend that I am lord of that land, and that I have dominion over all who occupy it.
I grew up in Maine where I knew people with 50+ acres, not counting farmers. Out in Montana and Wyoming, you use to be able to buy hundreds of acres for not too much money.
Here’s a site:
One of those links, you can buy 35 acres for $22,000.
My house in Atlanta is on a lot maybe 1/2 acre in size. Then I have a house in the country on two acres. (I’m selling that one, though.) I also have an undeveloped mountain lot that’s 12 acres, where I hope to build in the near future. (Essentially trading up from my current country house.) And then I have a 1/3 acre city lot in a small town in Florida, for which I have no immediate plans.
To answer one of the OP’s questions, it’s not at all unusual to see small, unremarkable country houses sitting on 20 to 120 acres (or more) in the southern US.
As for me, I own 619 shares in a corporation that owns an apartment building that I live in. The only land I own is the dirt that occasionally builds up in my tub. 
I’d need to look at title deeds but:
Home - less than a tenth of an acre (much less probably)
Second Home - my place in the country (it’s a glorified shack) is about the same. It however has the advantage of backing onto a highland estate of many square miles, and given that Scots law gives me more-or-less free access to this, I can quite easily pretend that this is mine too.
I’m the only one in the family that’s seen all the ranch and that’s only because of years of rounding up cattle and some pretty dedicated hunting and a good 4 wheeler. The original parcel was a sheep ranch and many old stone houses still exist, abandoned but standing. It’s prarie mainly, bisected by a good sized river and has some nice canyon land with Indian pictographs. We get elk, bear, mountain lion, deer and Pronghorns in there. You can tour most of it with a good truck. A few years ago the second part was acquired and it’s varied, everything from sand hills to scrub to rich bottomland, including 9 miles of the Arkansas River. Great duck hunting, plus huge mulies. Sadly, it’s where the B-52 crashed one night.
I have an acre, but I have used (for over 20 years) an additional 3/4 acre that is a county right of way for a future road. Lots of trees including half a dozen filberts, a couple of apple, a pear and a cherry. There’s another acre next to me that has wild blackberries galore. Lots of bunnies, squirrels and birds. Beyond that they are encroaching on me w/ new houses and apartments. I’m just waiting for a developer to come along w/ an offer, then I’ll get a few acres in the country and start over, if I live long enough.