Small Business operating as Partnerships, S-Corps, LLCs, Corporations (average gross income less than 12 million), Farmers and Ranchers operating as Partnerships, S-Corps, LLCs, Corporations, Individuals with and without small businesses, Estates and Trusts tied to the Individuals.  

Demographics:
Race: mix reflects area stats pretty closely.
Gender:  More men owned businesses than women owned.  When I was based out of Northern Colorado I specialized in Women Owned Businesses.  I teach a class in Women's Financial Literacy locally and in Denver but the my business is not skewed toward Women.
Income:  The Valley is plagued by poverty so the individual client income is equally split under 50,000(a lot of the employees of my business owners)  and over $125,000 upward to 500,000 for the business owner.  90% live in San Luis Valley 9% live in Northern Colorado and 1% spread World Wide.

Psychographics:  Bottom line they all are required to file a tax return so they are required to see someone.  Most pick us because of our specialty in small business or Ag and we have a reputation of being etihical, minimizing tax, and providing service expanded way beyond tax preparation.  Many of our new clients tell us they learn more in a single 2 hour tax planning session with us than they learned the previous 15 years from their former CPA so I think we excel in communications.  Lifestyle most of my clients work very hard in this harsh environment to make moderate profits.  They live here by personal choice (mountain people are a little independent & strange) and high earnings is not the controlling element of that choice.    