IncomeByZipApi is a simple API for getting income by zipcode data in the United States. Income information can be used to figure out where you want to spend marketing dollars. Where you want to open a business. Where you want to purchase or build income property. The uses are endless. Additionaly there is a Demographics api available...
Find the absolute best areas to spend your marketing dollars. Don't spend marketing budget on a demographic that can't afford your product.