Bought my '13 SS new in December 2012. Had 220 on it because they had to bring it from an Atlanta dealership. I just turned over 3K miles (that's about 600 miles a month average) but I doubt I can maintain an average that low. So, yes... your 2011 has pretty low miles on it. You're averaging about 500/month.
2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint