Where can I find income and demographics?

More specifically, I am looking for data that can help me model the relationship of household income to home values (or housing spend) in metro San Francisco and Los Angeles, and for the US as a whole.  The USCB and municipal data I've found so far is...

Trying to size the market for a apparel and accessories startup selling fashionable foreign labels in India with an average ticket price of Rs 3000

I'm doing a project for a political science project and I am having a terrible time finding any concise, understandable information about recent U.S. tax demographics. I'm trying to find out who pays the most amount of money (in dollars) in taxes, and...

So I'm doing a project for Marketing/DECA where I am a third party hired by a sports drink company looking for a sport for the drink to partner with. It was supposed to be a lesser appreciated sport, so I chose US rugby. Sadly, I'm trying to find graphs...

I'm involved in a new business that is selling high-end home audio systems (average price of a system is $15,000). I already have a good understanding of my target market, but I'm wondering where I can find more specific information on demographics such...

I have conducted some research and need to compare the basic demographics I've collected (age, highest level of education, household income, number of children, employment status) to official statistics for England. I know this info exists, I had it...

One can argue that it would reduce the wealth of savers (i.e. the wealthy) and pull assets out of low-risk bonds and create more demand. Putting money into treasury bonds or cash would create a guaranteed negative return rate. Savers would be motivated...

Where would i find my home income amount in my income tax papers, for the state of maine. I need this as a resource for something i need and i am not quite sure how much my home income is. Are there other ways i can find out what my home income is??