The average library salary at Grant County was $26,672 , which is 33 percent lower than the average salary for this job in Arkansas, and 41 percent lower than the national average for this job . Library salaries at Grant County typically range from $21,173 to $30,423 (25th to 75th percentile). The highest reported library salary was $41,547. There are 6 employees at Grant County with the job title library.