As of July 01, 2026, the average annual salary for Assistant Investigator in Massachusetts is $49,320, equivalent to $24 per hour, $948 weekly, or $4,110 monthly. These figures, sourced from Salary.com’s real-time job posting scans, highlight competitive earning potential for Assistant Investigator in cities like San Jose, Santa Clara, and San Francisco.

Annually Salaries for Assistant Investigator in Massachusetts vary widely, spanning from $40,011 to $59,476. Most professionals fall between the 25th percentile ($44,447) and 75th percentile ($54,636), while top earners (90th percentile) make $59,476 per year. This $10,189 pay gap underscores opportunities for salary growth through certifications, specialized skills like Commitment or Document Review, or targeting high-paying regions like District of Columbia or California.

Location and experience significantly influence earnings. For example, Massachusetts Assistant Investigator often earn 8.8% higher than national averages due to demand from Fortune 43 companies. However, Massachusetts currently ranks 3 nationwide for Assistant Investigator job salary. Professionals are advised to focus on high-growth sectors like to offset market challenges.

Based on HR-reported data: a national average with a geographic differential
Assistant Investigator Salaries by Percentile
Percentile Salary Location Last Updated
10th Percentile Assistant Investigator Salary $40,011 MA July 01, 2026
25th Percentile Assistant Investigator Salary $44,447 MA July 01, 2026
50th Percentile Assistant Investigator Salary $49,320 MA July 01, 2026
75th Percentile Assistant Investigator Salary $54,636 MA July 01, 2026
90th Percentile Assistant Investigator Salary $59,476 MA July 01, 2026
25% $44,447 10% $40,011 90% $59,476 75% $54,636 $49,320 50%(Median) Didn’t find job title? Click
Change Search Criteria
Check out Assistant Investigator jobs in Massachusetts

Physician Assistant-Certified

California Dermatology Institute - LOMPOC, CA

Physical Therapist Assistant

Community Hospital of Anaconda - ANACONDA, MT

Registered Dental Assistant

Williamson Dental Solutions - DOVER, DE

Search More Assistant Investigator Jobs in Massachusetts

What is An Assistant Investigator ?

The Assistant Investigator supports investigative teams in gathering and analyzing information related to various cases. Responsibilities include conducting interviews, collecting evidence, and maintaining detailed records of findings. This role requires strong analytical skills, attention to detail, and the ability to work collaboratively with other team members. Proficiency in research methodologies and familiarity with relevant laws and regulations are essential. The position may involve fieldwork, data entry, and report writing. Salary for an Assistant Investigator typically ranges from $4...

Source: (as of 06/04/2025). Read more from

See user submitted job responsibilities for Assistant Investigator.

Select a city to view specific salary and bonus information for Assistant Investigator

Loading results...
Location Avg. Salary Date Updated
Location Attleboro, MA Avg. Salary $51,090 Date Updated July 01, 2026
Location Barnstable, MA Avg. Salary $52,050 Date Updated July 01, 2026
Location Fitchburg, MA Avg. Salary $51,648 Date Updated July 01, 2026
Location Hyannis, MA Avg. Salary $52,164 Date Updated July 01, 2026
Location Leominster, MA Avg. Salary $51,660 Date Updated July 01, 2026
Location Malden, MA Avg. Salary $54,173 Date Updated July 01, 2026
Location Methuen, MA Avg. Salary $51,618 Date Updated July 01, 2026
Location Newton, MA Avg. Salary $54,167 Date Updated July 01, 2026
Location Revere, MA Avg. Salary $54,171 Date Updated July 01, 2026
Location Weymouth, MA Avg. Salary $53,205 Date Updated July 01, 2026
Job Openings for Assistant Investigator in Massachusetts

Career Path for this job

  1. This Job:

    Assistant Investigator

    0 - 1 years experience
    High School Diploma or Technical Certificate

  2. Up a level:

    Legal Records Clerk II

    1 - 3 years experience
    High School Diploma or Technical Certificate

Recently searched related titles: Legal Clerk, Legal Document Specialist, Legal Technician

Jobs with a similar salary range to Assistant Investigator : Legal File Clerk