Evan your house would most certainly read 120/240 or close to it on a digital meter. Its been like that around here since probably early 80's.
After Hurricane Katrina I went to Gulfport Mississippi and re-wired entire neighborhoods for almost 6 months. I have personally read on my Fluke-87 digital meter between 109-112/218-222. I understand that most of the US is now 120/240 but there are parts of the country that keep on keeping on old school.
You can still purchase items with the specs plate reading 110/220.