According to Kiplinger's recent research, these are the tiers of the Net Worth of households. Remember, net worth is all assets minus all liabilities. If you have a house worth $800K, a $600K mortgage, a paid off car worth $10K, and credit card debt at 5K, then your net worth is $205K. If you rent, lease a car, and have $20K in the bank, and $10K in credit card debt, you have a net worth of $10K.
Anyway, according to Kiplinger and the Net Worth of households here in the US:
Tier / Required Net Worth
Top 1% / $10.8M
Top 2% / $2.5M
Top 5% / $1M
Top 10% / $800K
Top 50% - $500K
And don't forget, that two-thirds all net worth comes from home ownership!