Answer:
We do not have a definitive answer. We can note, though, that within the public sector, the National Emergency Management Association and the Council of State Governments in their 2001 report on State Emergency Management Funding and Structures, writes that as of the year 2000 there were 14, 995 state political subdivisions (cities, towns, counties, parishes, etc.) eligible for participation in FEMA's Emergency Management Performance Grant (EMPG), which provides personnel and administrative funding to localities through State Offices of Emergency Management. To be eligible to participate in the EMPG a community must have an emergency management program and at least one person responsible for that program. (National Emergency Management Association and the Council of State Governments. 2001. NEMA/CSG 2001 Report on State Emergency Management Funding and Structures. Lexington, KY: NEMA c/o CSG, p25)
The NEMA/CSG report also notes that the average size of State Offices of Emergency Management (OEM) in 2000 was 57.22. Multiplied times 50 that would indicate approximately 2,861 State personnel.
At the State and local level, as well, there are many people with a role to play in emergency management, not the least of whom are emergency services personnel who dwarf, in numbers, emergency management personnel.
FEMA has a workforce of about 2,500 personnel with an additional standby disaster reserve force of about 4,228 individuals.
In addition there are many hundreds of other-than-FEMA Federal personnel, over 1 million volunteer and paid fire personnel, who work within the hazard, disaster and emergency management arena (see, for example, the "Federal Players in Hazards, Disasters and Emergency Management" session in the draft Higher Education Project course Hazards, Disasters and U.S. Emergency Management, An Introduction, at http://training.fema.gov/HiEdu/AEMRC/courses/coursesunderdev/.)
The largest employer of "emergency managers" is the private sector (business and industry), but we are unaware of the numbers of such personnel as well as those who volunteer or are employed by non-governmental organizations such as the American Red Cross, and others engaged in domestic as well as international disaster relief organizations, and hazard-related consultant organizations