what percentage of US citizens make large incomes, over 500,000$, over
1,000,000$, over 2,000,000$, etc?

Hi there,

Income Tax returns for the year 2000:

Total number of returns: 129,373,500    

$500,000 under $1,000,000	396,131    0.306%
$1,000,000 under $1,500,000	99,510     0.076%
$1,500,000 under $2,000,000	44,582     0.034%
$2,000,000 under $5,000,000	66,768     0.052%
$5,000,000 under $10,000,000	17,610     0.014%
$10,000,000 or more	        11,215     0.009%

The only source I found was this Excel file:
http://www.irs.gov/pub/irs-soi/00in11si.xls

Search strategy: irs data (then I browsed the IRS site)

Best wishes,
robertskelton-ga

This is likely from the bottom line of page 1 of the 1040 tax form.
This a reasonable definition of "make", but perhaps double these
numbers is possible, considering "married filling jointly", tax exempt
bonds and some other incentaves etc. which you may or may not feel are
reasonable adjustments.   Neil