How does the salary as Project Assistant at Tetra Tech compare with the base salary range for this job?

The average salary for Project Assistant is $64,139 per year (estimate) in US , which is 8% higher than the average Tetra Tech salary of $59,649 per year (estimate) for this job.

Are Project Assistant professionals at Tetra Tech in US satisfied with their compensation?

Tetra Tech employees working as Project Assistant in US have attributed a compensation and benefits rating of 5 out of 5 stars, based on 3 ratings. This is in line with the average of Project Assistant professionals at Tetra Tech worldwide.

What is the salary trajectory of a Project Assistant?

The salary trajectory of a Project Assistant ranges between locations and employers. The salary starts at $81,701 per year (estimate) and goes up to $210,362 per year (estimate) for the highest level of seniority.

How much does a Project Assistant make at Tetra Tech?

The estimated average salary for a Project Assistant at Tetra Tech is $64,139 per year or $31 per hour, but some professionals have reported earning up to roughly $97,228 per year (90th percentile). The typical pay range is between $52,031 (25th percentile) and $80,079 (75th percentile) annually. This is based on 9 salaries submitted by Tetra Tech Project Assistant professionals on Glassdoor, as of Jul 2026.

What is the typical salary for a Project Assistant per hour?

Project Assistant professionals typically earn between $25 and $38 per hour.

What is the typical salary for a Project Assistant per month?

Project Assistant professionals typically earn between $4,336 and $6,673 monthly.

What is the pay for job titles similar to Project Assistant at Tetra Tech?

Project Assistant - with an estimated total pay of $50K - $71K/yr, Project Administrator - with an estimated total pay of $56K - $80K/yr, Assistant Project Manager - with an estimated total pay of $79K - $116K/yr, Environmental Project Manager - with an estimated total pay of $98K - $141K/yr, Project Manager - with an estimated total pay of $103K - $152K/yr

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All Tetra Tech salaries

Total salary range for Tetra Tech Project Assistant

Total Pay

$50K

$71K_/yr

About our data

Last updated Apr 10, 20259 Salaries submitted

Pay breakdown

$60K

Median total pay

Base Pay

100%

$50K - $71K/yr

$60K/yrmedian

Deep dive into Pay

Recent salaries shared by Project Assistant at Tetra Tech

Job Title | Years of Experience

Base • Additional pay

Location

Date submitted

Job Title | Years of Experience

Location

Date submitted

Base • Additional pay

Project Assistant

1-3 years

$42K - $49K/yr

Long Beach, CA

submitted on Dec 14, 2021

$42K - $49K/yr

Project Assistant

1-3 years

$37K - $43K/yr

Long Beach, CA

submitted on Oct 11, 2021

$37K - $43K/yr

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Project Assistant

1-3 years

$33K - $39K/yr

San Francisco, CA

submitted on Mar 28, 2021

$33K - $39K/yr

Project Assistant

1-3 years

$44K - $51K/yr

Long Beach, CA

submitted on Jan 14, 2021

$44K - $51K/yr

Project Assistant

1-3 years

$37K - $43K/yr

Ithaca, NY

submitted on Nov 24, 2020

$37K - $43K/yr

Viewing 1 - 5 of 5

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Total salary range for Tetra Tech Project Assistant

About our data

Pay breakdown

$60K

Recent salaries shared by Project Assistant at Tetra Tech

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Total salary range for Tetra Tech Project Assistant

About our data

Pay breakdown

$60K

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