Apartment dog who likes to jog...

 How about a shelter dog if your not dead set on a purebreed? And if so there are plenty of PB rescues.  Look on petfinder to find rescues in your area and go from there.

 Someone with more knowledge of the breed may have better insight, but off the top of my head I would say a Whippet may work. From what I have heard, in the house they are very quiet - almost cat like. They are however runners. A Whippet is a sight hound and is not recommended for off leash so you would have to jog with a line.

Again, this is just what I understand and stand to be corrected. 

I don't believe your apartment size would be too small for any breed.  Dogs don't "use" or need all of the available space in our homes or yards.  They're just like us and use limited square footage at any one time. :)  My point is that the breed traits would be more important to me than physical size.  Of course your apartment lease may specify size limits or you might just want a small or medium small  dog.  The best advice I can give on breed choice is to research and actually meet dogs of the breeds you think might fit your lifestyle.  Talk to breeders, visit dog shows, find breed clubs in your area and go to meetings/events.  A written description won't tell you what you need to know about such an important commitment. 

 Would this be your first dog?  Is coat quantity an issue for you?  Are you thinking of getting a puppy or an adult dog?   These answers will help people give advice on a breed that might fit your life.

Given adequate exercise, I wouldn't disclude almost any breed from being able to live in an apartment. My dogs don't utilize my home environment for exercise. They're just as happy here as they would be in a smaller home/an apartment, IMO. I do feel dogs benefit from having their own yard, but as long as you're willing to put the effort into making sure the dog gets out for walks and whatnot, there shouldn't be a problem.

 Easy answer. Greyhound. Get an adult, from a Greyhound rescue. It'll be grown up, old enough to jog, and it'll enjoy the couch potato time, too. They are fantastic pets!!

 I agree with Jennie--GREYHOUND!

If you get a greyhound, make sure it is a more active dog. I've known a few greys who would be really sad if made to move at more than a stroll

 If you went through Greyhound rescue, though, they'd know which dogs would LOVE to have a nice jog a few times a week, and which ones wouldn't want to get out from under their covers, LOL.

And check out Neversaynevergreyhounds.blogspot.com for a great site about how athletic greys can be. :)

I've lived in apartments that size or smaller with collies and corgis and found them to be good apartment breeds, too. :P