The GDP per capita numbers in America are
$37,600 per person per year. But that number divides the GDP by the number of every man, woman and child so it's skewed downward since most kids don't earn a living. When you go to urban areas (LA, Chicago, New York City, New Orleans, Miami, Dallas, Seattle, San Francisco, St. Louis, San Jose, Las Vegas, etc.) the cost of living is higher and so are wages. $37,600 can buy a lot more in Kansas than $50k can buy in San Francisco.
According to the Census numbers of 2002, the actual average median household income in America (all 50 states) is $43,017 (Not too far from $50k before we even making purchasing power parity adjustments) And in highly populated areas it's higher up to about 56k per year depending on the state.
http://www.census.gov/hhes/income/in.../statemhi.html
So there you go. It's certainly higher than what you were saying. In the cheapest state it's over $30k. Maybe you should move to West Virginia. I'm sure your earnings would almost be average, and even if you couldn't pay for your kids to go to school, they probably have all their teeth and are brilliant compared to the locals.
It's ok, you can say it. Tell me I'm right.