As of May 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 $40,006 to $59,474. Most professionals fall between the 25th percentile ($44,445) and 75th percentile ($54,635), while top earners (90th percentile) make $59,474 per year. This $10,190 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 $40,006 MA May 01, 2026
25th Percentile Assistant Investigator Salary $44,445 MA May 01, 2026
50th Percentile Assistant Investigator Salary $49,320 MA May 01, 2026
75th Percentile Assistant Investigator Salary $54,635 MA May 01, 2026
90th Percentile Assistant Investigator Salary $59,474 MA May 01, 2026
25% $44,445 10% $40,006 90% $59,474 75% $54,635 $49,320 50%(Median) Didn’t find job title? Click
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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...

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Location Avg. Salary Date Updated
Location Attleboro, MA Avg. Salary $50,818 Date Updated May 01, 2026
Location Barnstable, MA Avg. Salary $51,774 Date Updated May 01, 2026
Location Fitchburg, MA Avg. Salary $51,374 Date Updated May 01, 2026
Location Hyannis, MA Avg. Salary $51,887 Date Updated May 01, 2026
Location Leominster, MA Avg. Salary $51,385 Date Updated May 01, 2026
Location Malden, MA Avg. Salary $53,885 Date Updated May 01, 2026
Location Methuen, MA Avg. Salary $51,344 Date Updated May 01, 2026
Location Newton, MA Avg. Salary $53,879 Date Updated May 01, 2026
Location Revere, MA Avg. Salary $53,883 Date Updated May 01, 2026
Location Weymouth, MA Avg. Salary $52,922 Date Updated May 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