Kitchen and dining area (and pantries) are part of the kitchen. Living rooms and dens are not. Where the border is defined is really up to your local authorities. I'd sit down with the building department and have them mark out a line.

If I were the authority, everything other than the wall tha runs from the Refrigerator around to the door to the living/dining area would be kitchen space, the rest would be living area.

Note that while every receptacle (with small exception)in the kitchen needs to be on one of the two (or more) small appliance circuit, only the countertop ones need GFCI.

This post was edited by ronnatalie on Mon, Oct 28, 13 at 19:30

Thank you, ronnatalie!

Using your guess for division of space, then, I will need to move that receptacle that is on the other side of the refrigerator's end wall (where the breakfast table will be) off of the small appliance circuit and onto the AFCI-protected general-use circuit for the sitting room area, right?

Your guess does seem the most obvious. But I'll check with our inspector to be sure he agrees.

As far as GFCIs, I might end up simply protecting the entire circuit with a GFCI breaker, rather than use individual GFCI receptacles, just because I've found those to be more of a pain to wire, especially when you have multiple connections in a box. My mom and I are doing the wiring ourselves so trying to keep things as hassle-free as possible! I was originally going to use a 20A double pole GFCI breaker to feed both small appliance circuits to save wire, but that breaker is really expensive ($115!).... so I might go back to two separate 20A breakers after all.