It seems that clothes washers always have a 90 degree (flat) plug, yet gas dryers always have a 180 degree (straight) plug. This permits both appliances to share the same duplex receptacle.
I haven't seen a gas dryer in nearly 30 years in these parts
Both my gas dryer and my washing machine have straight plugs.
My observation has been that many of the homes in Northern VA built in the early to mid 80s are all electric. I suspect this was due to concerns about the price of natural gas at the time.
My house, built in Manassas, VA in 1995, has a gas dryer but there is a receptacle for an electric dryer.
