Administrative Assistant/Customer Service Agent Salary in Missouri

How much does an Administrative Assistant/Customer Service Agent make in Missouri? As of September 01, 2026, the average salary for an Administrative Assistant/Customer Service Agent in Missouri is $43,388 per year, which breaks down to an hourly rate of $21.

However, an Administrative Assistant/Customer Service Agent's salary can vary significantly. Here's a look at the typical salary range:

  • Top Earners (90th percentile): $51,682
  • Majority Range (25th-75th percentile): $39,498 to $47,730
  • Entry-Level (10th percentile): $35,957

Key Factors That Influence Administrative Assistant/Customer Service Agent Salaries

An Administrative Assistant/Customer Service Agent'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 and company size can directly affect your earning potential.

How Experience Level Affects Administrative Assistant/Customer Service Agent Salaries?

Experience is a primary driver of an Administrative Assistant/Customer Service Agent'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): $41,448
  • Early Career (1-2 years): $42,362
  • Mid-Level (2-4 years): $44,112
  • Senior-Level (5-8 years): $45,619
  • Expert (over 8 years): $45,800
Job RoleYears of ExperienceAverage Salary
Entry Level Administrative Assistant/Customer Service Agent less than 1 year $41,448
Early Career Level Administrative Assistant/Customer Service Agent 1-2 years $42,362
Mid-Level Level Administrative Assistant/Customer Service Agent 2-4 years $44,112
Senior-Level Level Administrative Assistant/Customer Service Agent 5-8 years $45,619
Expert Level Administrative Assistant/Customer Service Agent over 8 years $45,800

Top Paying Cities for Administrative Assistant/Customer Service Agent

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:

  • Braggadocio: $42,043
  • Eugene: $42,214
  • Fortuna: $42,203

Administrative Assistant/Customer Service Agent Salary by Industry: Top Paying Sectors

For Administrative Assistant/Customer Service Agent roles, the industry you choose can affect earning potential by as much as 40% (the gap between the highest and lowest paying industries). Data shows that the Aerospace & Defense and Telecom sectors offer the strongest compensation, at 15% above the average. In contrast, Administrative Assistant/Customer Service Agent positions in Hospitality & Leisure or Edu., Gov't. & Nonprofit typically offer lower base pay, as these industries often view Administrative Assistant/Customer Service Agent as a support function rather than a direct revenue driver.

The top paying industries for an Administrative Assistant/Customer Service Agent

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Aerospace & Defense $49,897 $24.0 15%
Telecom $49,897 $24.0 15%
Biotechnology $47,727 $23.0 10%
Energy & Utilities $47,727 $23.0 10%
Internet $47,727 $23.0 10%

Administrative Assistant/Customer Service Agent Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Administrative Assistant/Customer Service Agent'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.

  • Yearly
  • Monthly
  • Weekly
  • Hourly
  • Table View
Last Updated on September 01, 2026
$39,498
Average $43,388/year
$47,730
$3,292
Average $3,616/month
$3,977
$760
Average $834/week
$918
$19
Average $21/hour
$23
Annual Salary Monthly Pay Weekly Pay Hourly Wage
75th Percentile $47,730 $3,977 $918 $23
Average $43,388 $3,616 $834 $21
25th Percentile $39,498 $3,292 $760 $19

Find Your Next Administrative Assistant/Customer Service Agent Job

Ready to take the next step in your career? Browse thousands of current Administrative Assistant/Customer Service Agent job openings on our job board. Use the search bar below to find your perfect match.

  • Horizon Air | MISSION SQUARE, WA

    Horizon Air | MISSION SQUARE, WA

    Horizon Air seeks a Ramp & Customer Service Agent to support safe, on-time flights and outstanding guest experiences in our Transportation & Logistics team... more

    5 Days Ago

  • Alaska Airlines | KODIAK, AK

    Alaska Airlines | KODIAK, AK

    Alaska Airlines, a leading U.S. carrier based in SeaTac, Washington, is seeking a Station Agent to join our Transportation & Logistics team. In this custom... more

    6 Days Ago

  • Alaska Airlines | ALAKANUK, AK

    Alaska Airlines | ALAKANUK, AK

    Alaska Airlines is seeking a dependable Ramp Service Agent to support safe, efficient ground operations in our Transportation & Logistics team. In this han... more

    6 Days Ago

  • Alaska Airlines | TELLER, AK

    Alaska Airlines | TELLER, AK

    As a Ramp Service Agent at Alaska Airlines, you’ll safely load and unload baggage, cargo, and mail, marshal aircraft, and operate ramp vehicles and ground ... more

    6 Days Ago

  • Alaska Airlines | TELLER, AK

    Alaska Airlines | TELLER, AK

    As a Customer Service Agent (Flight Attendant) at Alaska Airlines, you ensure passenger safety, comfort, and exceptional service on every flight. You’ll pe... more

    6 Days Ago

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Where Does Our Salary Data Come From?

Salary.com salary estimates, histograms, trends, and comparisons are derived from both employer job postings and third-party data sources. We also provide multiple percentiles of salary information for your reference, click here to know Why the Salary Midpoint Formula Is Crucial to Getting Pay Equity Right. With more online, real-time compensation data than any other website, Salary.com helps you determine your exact pay target.

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