What % of people at you office could run a 5k without walking?

I have no idea. And I wonder how one could tell, without actually either putting it to the test or asking.

I am carrying more weight than I should. I do not look like a typical runner. Yet I can run a 5k without walking, although to look at me, most people would not think so. I know people who look in shape, yet get winded after running for just 5 or 10 minutes.

You might as well ask how many people at your office have a resting HR in the 60's. No way to tell by looking.

I agree.  Unless you know the fitness level of everyone in your office, the only way to guess is to look at their physical "shape".  After participating in many races - 5k to half marathon and sprint/oly tri's, I've learned not to judge a book by its cover - not that you should anyway.

There are a few folks who do CrossFit here, and a couple of recently-out-of-the-military guys, a former pro cyclist, and a few folks who run regularly. Some of them wouldn't be keeping an 8 min/mile, but I'd guess probably 60%+ could do 5k without walking.

I'm in south-western New Mexico along I-10.  At work we mostly drive, but there are often long walks in the mountains. Some ATV riding, some horseback riding. I sit behind a desk a lot, but I can work-out three hours per week, and I make it a point to get up and walk around when I'm not immediately busy with something.

100% in my office but I'm the only one in it

My last full-time job I would guess 10%. All of the job positions were desk jobs and there were a lot of overweight people that worked there. 

In my office for the first half of this year, 60 people (architects, structural engineers, and interior designers)  in metro Sacramento, probably 25-33%.  I've run 5k's with about 10 of them.  And played softball and basketball with another 20 of them (yes, softball, basketball, and 5ks have almost no skills in common)

In my present office, 10 people (architects and 1 interiors), in central Mass, at least 10% lol.  Even though the 5k I did yesterday, I had to stop during (not fatigue, a turned ankle on a trail race).  On the other hand, 90% of the office is, at eldest, in their mid-30s, and no one is obese, maybe 2 overweight...  Maybe 50%.  Who knows.

I've been obese in my late 40's, and ran 5k's without stopping. I did a lot of them, actually, both a summer and winter series, as well as the odd weekend here and there. AND I have a complete ACL tear in one knee, that's never been repaired. I did a team tri race with friends from college when we were in our 30's. The thinnest guy would not take the running leg because he did not think he could do the running (and in retrospect, he barely completed the bike leg he took). 

You simply cannot judge a book by it's cover. I'm not going to be claiming any kind of land speed records, but even when I was in my early 30's and weighed 145 with around 11% body fat, I was a back of the pack runner.  

i know LOTS of young, skinny people that can't finish a 5k without walking.

i know lots of older people and bigger people that run marathons.

there are days that I can't finish 3 miles without walking (yesterday was not one of them, thank god)

i look around the parking lot and see bikes mounted on a few cars, USAT, USAC, and race distance stickers on a few more.  maybe 5% of the vehicles?  you wouldn't know from my car that i do tris, though.

i work in manufacturing, at an automotive supplier, 500 people at this location.

Including me?  25%

But my office is just me, the dog, and 2 cats.  My dog would be good to about 2 miles, but I think she would slow to a walk after that.  She could finish the race, but would probably need to walk.  The 2 cats are in pretty good shape.  They chase each other around the house at all hours of the night at high speed, but I don't think they have the endurance to do 5K.

I have two dogs. I tried to take them for a run yesterday. The one dog was ready to go the distance. The other, after about 3/4 of a mile, acted like I was torturing him, walking as far back on the leash as he could. We happened to run along a part of a duathlon that was going on, and the volunteers along the course were trying to cheer him on - "Almost there! You can do it!" - as I dragged him along.

What about the people that are actually faster when they walk/run?  Why do you hate them and puppies?

It's not "political correctness". It's defining your terms, and as I have noted, making assumptions about others (based on????). 

If you are asking what % of people can endure some sort of suffer-fest, that is a totally different question. And equally unanswerable. I have a friend that will routinely go on mountainous hikes of 12-15 miles/day with a fully loaded pack. But he will not run even a mile. No interest.