Admin Assistant III Salary in the United States

How much does an Admin Assistant III make in the United States?

As of January 01, 2026, the average salary for an Admin Assistant III in the United States is $52,769 per year, which breaks down to an hourly rate of $25.

However, an Admin Assistant III's salary can vary significantly. Here’s a look at the typical salary range:

  • Top Earners (90th percentile): $63,413
  • Majority Range (25th-75th percentile): $46,943 to $58,341
  • Entry-Level (10th percentile): $41,638
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View as table View as graph 25% $46,943 10% $41,638 90% $63,413 75% $58,341 $52,769 50%(Median) Didn’t find job title? Click

Admin Assistant III Salaries by Percentile

Annual
Salary
Monthly
Pay
Weekly
Pay
Hourly
Wage
75th Percentile $58,341 $4,862 $1,122 $28
Average $52,769 $4,397 $1,015 $25
25th Percentile $46,943 $3,912 $903 $23
Check out Admin Assistant III Job Openings in the United States
Administrative Assistant III

Element Care - LYNN, MA

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Triad Financial Services Inc - ANAHEIM, CA

Linux Sys Admin

Anonymous Employer - DENVER, CO

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Key Factors That Influence Admin Assistant III Salaries

An Admin Assistant III's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location, education and company size can directly affect your earning potential.

How Experience Level Affects Admin Assistant III Salaries?

Experience is a primary driver of an Admin Assistant III's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:

  • Entry-Level (less than 1 year): $50,098
  • Early Career (1-2 years): $50,503
  • Mid-Level (2-4 years): $53,352
  • Senior-Level (5-8 years): $56,559
  • Expert (over 8 years): $58,073
Levels Salary
Entry Level Admin Assistant III$50,098
Intermediate Level Admin Assistant III$50,503
Senior Level Admin Assistant III$53,352
Specialist Level Admin Assistant III$56,559
Expert Level Admin Assistant III$58,073
$50,098 0 yr
$50,503 < 2 yrs
$53,352 2-4 yrs
$56,559 5-8 yrs
$58,073 > 8 yrs
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What Am I Worth?

How Do Admin Assistant III Salaries Vary from State to State?

Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract Admin Assistant IIIs. For example, consider the average annual salaries in these key locations:

  • District of Columbia: $58,426.
  • California: $58,204.
  • Massachusetts: $57,428.

Top Paying Cities for Admin Assistant IIIs

Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:

  • San Jose: $66,557
  • San Francisco: $65,903
  • Oakland: $64,441

What Skills Can Increase an Admin Assistant III's Salary?

Demanded Skills for the Role:

  • Customer Service (Mentioned in 11.77% Job Postings): Customer service is the provision of service to customers before, during and after a purchase. The perception of success of such interactions is dependent on employees "who can adjust themselves to the personality of the guest". Customer service concerns the priority an organization assigns to customer service relative to components such as product innovation and pricing. In this sense, an organization that values good customer service may spend more money in training employees than the average organization or may proactively interview customers for feedback. From the point of view of an overall sales process engineering effort, customer service plays an important role in an organization's ability to generate income and revenue. From that perspective, customer service should be included as part of an overall approach to systematic improvement. One good customer service experience can change the entire perception a customer holds towards the organization.
  • PowerPoint (Mentioned in 2.58% Job Postings): A computer software created by Microsoft which allows the user to create slides with recordings, narrations, transitions and other features in order to present information.
  • Bookkeeping (Mentioned in 1.32% Job Postings): Bookkeeping is the recording of financial transactions, and is part of the process of accounting in business. Transactions include purchases, sales, receipts, and payments by an individual person or an organization/corporation. There are several standard methods of bookkeeping, including the single-entry and double-entry bookkeeping systems. While these may be viewed as "real" bookkeeping, any process for recording financial transactions is a bookkeeping process. Bookkeeping is the work of a bookkeeper (or book-keeper), who records the day-to-day financial transactions of a business. They usually write the daybooks (which contain records of sales, purchases, receipts, and payments), and document each financial transaction, whether cash or credit, into the correct daybook—that is, petty cash book, suppliers ledger, customer ledger, etc.—and the general ledger. Thereafter, an accountant can create financial reports from the information recorded by the bookkeeper.
See More Skills
Skills Demand Percentage
Customer Service 11.77%
PowerPoint 2.58%
Bookkeeping 1.32%
What skills can make your compensation higher?
Mastering certain specialized skills can lead to a significant increase in pay. Here are examples of skills and the potential impact they can have on an Admin Assistant III's salary.
  • Financial Services: Can increase your salary by up to 19%.
  • Analysis: Can increase your salary by up to 9%.
  • Project Management: Can increase your salary by up to 7%.
Skill Salary Salary % Increase
Financial Services
$62,795
19%
Analysis
$57,518
9%
Project Management
$56,463
7%
Innovation
$55,407
5%
Collaboration
$55,407
5%
Leadership
$54,880
4%
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How Education impacts an Admin Assistant III's Salary?

Your level of education can impact your salary potential. While many Admin Assistant IIIs enter the field with a High School Diploma or Technical Certificate degree, higher education can lead to more specialized and higher-paying roles.

According to our 100% employer-reported salary data, the median salary for an Admin Assistant III with a High School Diploma or Technical Certificate is between $51,605 and $54,784).

Admin Assistant III Salaries by Degree Level

Typical Education for Admin Assistant III
Degree Level % of user with this level of education
No Diploma 1.2%
High School 35.1%
Associates 20.5%
Bachelors 39.2%
Masters 3.9%
Doctorate 0.1%
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Admin Assistant III Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Admin Assistant III's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.

Last Updated on January 01, 2026

Salary Trends for Admin Assistant III

Salaries for an Admin Assistant III can change over time, reflecting shifts in market demand and the overall economy. The median salary decreased from $42,450 in 2023 to around $42,238 in 2025, reflecting changes in demand, location, experience, and the wider economy. For a detailed analysis of Admin Assistant III salary trends, .

Average Annual Salary of Admin Assistant III Over Time

2022
$???
2023
$42,450
2024
$42,500
2025
$42,238
2026
$???
2027
$???
Year Average Annual Salary
2022
View More
2023 $42,450
2024 $42,500
2025 $42,238
2026
View More
2027
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Most common benefits for Admin Assistant III

Social Security
401(k)
Disability
Healthcare
Pension
Time Off (days)
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Common company salaries for Admin Assistant III

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Where Does Our Salary Data Come From?

Salary.com provides salary estimates, histograms, trends, and comparisons using data from employer job postings and third-party sources.

We offer detailed salary information across multiple percentiles for your reference. (Click here to learn Why the Salary Midpoint Formula Is Crucial for Achieving Pay Equity.)

With the most extensive online, real-time compensation data available, Salary.com helps you pinpoint your exact pay target.

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