Are county employees government employees?

yes, federal

State, county and municipal (city) employees work, respectively, for those distinct divisions of government. All are public employees, however, since all work for government, at some level.

govern stuff

Someone that the government employs for certain things e.g. administration. A guard such as a beefeater could also be said as a government employee.

I would personally think not. Perhaps this formula would help make that determination: 304 million USA population 31% under age 18 -- 12.8% over 65 14.6 million government jobs (as reported...