The average web designer salary at Alameda County was $150,251 , which is 21 percent higher than the average salary for this job in California, and 167 percent higher than the national average for this job . Web Designer salaries at Alameda County typically range from $124,173 to $176,328 (25th to 75th percentile). The highest reported web designer salary was $179,186. There are 4 employees at Alameda County with the job title web designer.