It probably depends on number of electric appliances.

If you live where you have electric heating/cooling, electric water boiler, electric stove/oven, you'll burn a lot of electricity. I burn 2500-3000kW/year in 1B apartment, but except heating/cooling - everything is electricity. If I had a gas stove and hot water I'd probably use less than 1/3 of that.

Also I'd guess that in US people do not built as well insulated buildings as in Europe, thus more power for heating/cooling