"The Bureau of Labor Statistics of the U.S. Department of Labor is the principal Federal agency responsible for measuring labor market activity, working conditions, and price changes in the economy. Its mission is to collect, analyze, and disseminate essential economic information to support public and private decision-making. As an independent statistical agency, BLS serves its diverse user communities by providing products and services that are objective, timely, accurate, and relevant." - From the BLS website.
The BLS has online the median annual wages for Electrical and Electronics Engineering Technicians in report "17-3023 Electrical and Electronics Engineering Technicians." This report also contains employment figures nationwide and other important data.
“The O*NET Program is the nation's primary source of occupational information. Valid data are essential to understanding the rapidly changing nature of work and how it impacts the workforce and U.S. economy….Central to the project is the O*NET database, containing hundreds of standardized and occupation-specific descriptors on almost 1,000 occupations covering the entire U.S. economy.” - From the O*NET website.
Read the O*Net summary report "17-3023.01 - Electronics Engineering Technicians