Whoah....Incomes in the richest county in America average around $300,000.

Did you know that in Ada County, you're richer than much of Idaho?  

If you're thinking the richest county in the US has to be near one of the metro areas like New York or LA, you're dead wrong.  This pile of riches has landed in a place you'd never expect.

Bloomberg looked over tax returns from across the US from 2015, and learned that the richest county in America has adjusted gross incomes averaging $303,717.  And the incomes are not because celebrities or professional athletes live there.  It's oil money.

McMullen County, northwest of Corpus Christi, Texas, beat out other counties in Wyoming and New York to earn the top spot on the richest counties list, according to data used by Syracuse University.  McMullen County is home to large ranch families that have been tied to the oil industry for years.

Here's the kicker -- the population of the county is only 707!  Less than a thousand people live there.  Nowwwww it's starting to make sense.  In the grand scheme of things there are just a few people with great incomes who are factored in, so the average stays high.

Teton County, Wyoming landed in second place, and then New York County, New York, which includes Manhattan.  Rural areas beat metro areas for the most part.

So, now we're all curious about how the Treasure Valley compares, right?  The average adjusted gross income in Ada County is $65,199, according to public tax return data.  The average in Canyon County is $42,685.

We're a little short of being "the richest," but rich doesn't always mean happy, right?  And besides, we have Guru Donuts and the Basque Market and Costco and Kohls, and other necessary things in life that don't exist in a county of 700 people in Texas.  Add a craft beer, and life is pretty good.

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