smallest town with interstate service

[agentsteel53]

Buford, WY had - at one point - an official population of 1.  It's got an exit from I-80.  is that still around?  (the town, not the exit.  I'll bet the exit is still there.)

[kphoger]

...and does the highway actually enter the corporate limits?

[A.J. Bertin]

Buford, WY had - at one point - an official population of 1.  It's got an exit from I-80.  is that still around?

Yes - the town is still there. I took a cross-country road trip last summer that included the stretch of I-80 that passes through Wyoming. My friend and I stopped at the Buford exit, and I got a picture of the Buford: Population 1 sign. The house that's there looked like someone resides there.

[formulanone]

Apparently, the town was sold, according to wiki.

[NE2]

I-4 passes next to Bay Lake and Lake Buena Vista. But the populations are a respectable 47 and 10.

[corco]

It got bought by a Vietnamese fellow who is still running the store and living on site.

[roadman65]

Point South, SC is a small town I would imagine.  It is serviced by Exit 33 on I-95.  I do not know if you want incorporated or unincorporated, as I would think this is the latter.