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Office Assistant III Salary in the United States

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

As of September 01, 2026, the average salary for an Office Assistant III in the United States is $46,873 per year, which breaks down to an hourly rate of $23.

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

  • Top Earners (90th percentile): $60,361
  • Majority Range (25th-75th percentile): $43,463 to $53,933
  • Entry-Level (10th percentile): $40,358
Salary Factors Salary-Boosting Skills Salary by Experience Related Job Salaries Top Paying Cities Explore Related Jobs

Key Factors That Influence Office Assistant III Salaries

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

How Do Office 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 Office Assistant IIIs. For example, consider the average annual salaries in these key locations:
  • District of Columbia: $51,893.
  • California: $51,703.
  • Massachusetts: $51,013.

Top Paying Cities for Office 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: $59,113
  • San Francisco: $58,473
  • Oakland: $57,243

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

Demanded Skills for the Role:

  • Customer Service (Mentioned in 16.1% 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.
  • Accounting (Mentioned in 2.48% Job Postings): Creating financial statements and reports based on the summary of financial and business transactions.
  • Word Processing (Mentioned in 1.51% Job Postings): word processing, operation in which a text-editing software program called a word processor is used to create a document on a computer. A word-processing system can produce a wide variety of documents, including letters, memoranda, and manuals, rapidly and at relatively low cost.
Skills Demand Percentage
Customer Service 16.1%
Accounting 2.48%
Word Processing 1.51%
See More Skills

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 Office Assistant III's salary.

  • Consumer Electronics: Can increase your salary by up to 16%.
  • Hard Working: Can increase your salary by up to 15%.
  • Analysis: Can increase your salary by up to 12%.
Skill Salary Salary % Increase
Consumer Electronics $54,373
16%
Hard Working $53,904
15%
Analysis $52,498
12%
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Office Assistant III Salary by Company Size: Startups vs. Enterprise

Office Assistant III salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $52,383. While startup companies pay approximate $44,310.

Office Assistant III Salary by Company Size

Company Size Employees Average Salary
Startup 1~50 $44,310
Growth Stage 51~500 $46,863
Established 501~5000 $50,582
Enterprise 5000+ $52,383

Office Assistant III Salary by Industry: Top Paying Sectors

For Office Assistant III roles, the industry you choose can affect earning potential by as much as 75% (the gap between the highest and lowest paying industries). Data shows that the Biotechnology and Software & Networking sectors offer the strongest compensation, at 25% above the average. In contrast, Office Assistant positions in Transportation or Edu., Gov't. & Nonprofit typically offer lower base pay, as these industries often view Office Assistant III as a support function rather than a direct revenue driver.

The top paying industries for an Office Assistant III

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Biotechnology$58,591$28.025%
Software & Networking$58,591$28.025%
Energy & Utilities$56,248$27.020%
Financial Services$56,248$27.020%
Pharmaceuticals$56,248$27.020%

How Education impacts an Office Assistant III's Salary?

Your level of education can impact your salary potential. While many Office Assistant IIIs enter the field with a No Diploma 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 Office Assistant III with a No Diploma is between $47,357 and $50,197).

Office Assistant III Salaries by Degree Level

Typical Education for Office Assistant III
Degree Level % of user with this level of education
No Diploma 4.8%
High School 49.4%
Associates 19.3%
Bachelors 22.9%
Masters 3.6%
Doctorate 0.0%
View as Graph

Office Assistant III Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Office 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 September 01, 2026
$43,463
Average $46,873/year
$53,933
$3,622
Average $3,906/month
$4,494
$836
Average $901/week
$1,037
$21
Average $23/hour
$26
Annual Salary Monthly Pay Weekly Pay Hourly Wage
75th Percentile $53,933 $4,494 $1,037 $26
Average $46,873 $3,906 $901 $23
25th Percentile $43,463 $3,622 $836 $21

Office Assistant III Salary Growth & Career Path

Office Assistant III

Next Role

For an Office Assistant III, the most direct path to higher earnings is advancing to the Clerical Support Supervisor role. This promotion typically comes with a significant pay increase, bringing the average annual salary to $66,200 - a projected growth of 41% over your current level.

Most common benefits for Office Assistant III

  • Social Security
  • 401 (k)
  • Disability
  • Healthcare
  • Pension
  • Time Off (days)

Common company salaries for Office Assistant III

Here are companies hiring for Office Assistant III and their salaries, click below for more details.

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FAQ about Office Assistant III

1. What industry pays the highest salary for Office Assistant III?

The Biotechnology industry offers the highest average compensation for Office Assistant III roles, with salaries approximately 25% above the market median.

2. How much does an Office Assistant earn?

The estimated total pay for an Office Assistant ranges from KES 45,193 to KES 56,253 annually, with a mid-salary of KES 50,203. This reflects the typical earnings for this role, providing a clear understanding of the salary expectations in the market.

3. How much do office assistants make in the US?

Office Assistants in the US earn between $45,193 and $56,253 annually, with a median salary of approximately $50,203. These figures reflect the range of salaries based on data collected, providing a clear picture of the compensation for this role.

4. What is an Office Assistant III?

An Office Assistant III performs complex clerical duties within a school office, department, or program, requiring a solid understanding of relevant policies and procedures. The salary for this position ranges from $45,193 to $56,253, with a midpoint of $50,203, reflecting the level of responsibility and expertise required.

5. What is the scale of office assistant?

The salary scale for an Office Assistant ranges from PKR 45,193 to PKR 56,253 annually, with a mid-range salary of PKR 50,203. This reflects the compensation structure for this role, providing a clear understanding of potential earnings in the position.

6. How much do most office assistants earn?

Most office assistants earn between $45,193 and $56,253 annually, with a median salary of approximately $50,203. This range reflects the varying levels of experience and responsibilities associated with the role.

7. What is the office salary?

The salary for an Office Assistant typically ranges from $45,193 to $56,253, with a median salary of $50,203. This reflects the general pay scale for this role, differing significantly from the higher earnings of main actors in shows like The Office, who earned substantially more per episode.

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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