Having recently added LNS (Lancaster, PA, USA), HGR (Hagerstown, MD, USA), YTZ (Toronto City), QNY (Marine Air Terminal, NY, USA), and BDR (Stratford, CT, USA), the total's now 269.
QNY is an anomaly in my
flightmemory, since it's the first one I've had to ask the webmaster to add.
Due to my request, QNY is now in flightmemory's database.
As for my airport count, adding QNY, BDR, ONT, IPL, CMH, MAO, BSB, and IGR brings the total to 277.