Click on "Explore Your Zip Code" to identify the top three lifestyle characteristics of a zip code. A subscription is required to access the full database.

From Claritas, use the Zip Code Look-Up tool to find demographics for zip codes. Subscription required to access the full database.

This database from the U.S. Census provides information about people, including
Basic Counts
Education
Income
Employment
Race

Datasets on employment, earnings, consumer and producer price indexes from U.S. Dept. of Labor, Bureau of Labor Statistics. Go to Data Tools for list of datasets. See Public Data API for tools to retrieve.

"CBP is an annual series that provides subnational economic data by industry. This series includes the number of establishments, employment during the week of March 12, first quarter payroll, and annual payroll."

U.S. Census Bureau home page. The official site for U.S. economic, demographic, and social statistics.

From the USDA - ERS, this site provides state and county-level data on population, poverty, education, employment, unemployment, and median household income.