The average assessor salary at Gilmer County was $38,304 , which is 34 percent lower than the average salary for this job in West Virginia, and 41 percent lower than the national average for this job . Assessor salaries at Gilmer County typically range from $24,027 to $52,580 (25th to 75th percentile). The highest reported assessor salary was $68,325. There are 6 employees at Gilmer County with the job title assessor.