I know for a real estate professional even one person could claim losses against entire household income.

I am not sure if it is correct or not, but I look at household income and when the adult caring for the parent took a salary from the parent's income I did not count that as income. 

., having children under 18 in a household, including pregnant women)National origin.Race.Religion.Sex.

I want a data set that breaks it down by county, zip code, median household income, average rent, etc.

Don't spend to long contemplating this question as this is more of a direct response marketing industry and so much about building a house hold name.

Las Vegas, NVOverall Population: 662,000Renter Occupied Households: 37%Month-Over-Month Rent Growth: -0.1%7.

Population over 100k2. .5% or more year-over-year (YOY) population growth3. 1% or more YOY median household income 4. 2% or more YOY job growth5. 2.5% or more YOY median home value6.

For $3100 rent, using the 3X income requirement equals $111,600 minimum annual household income.

The decline last month also reflects the fading boost from one-time $600 checks to households (which were part of nearly $900 billion in additional fiscal stimulus approved in late December).

AppreciationProperty prices increasing above the rate of inflation, is a strong indicator that people are moving into the location, new jobs are being created, and household income is rising.