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Inside Sales Development Assistant II Salary in Delaware

How much does an Inside Sales Development Assistant II make in Delaware?

As of August 01, 2026, the average salary for an Inside Sales Development Assistant II in Delaware is $47,200 per year, which breaks down to an hourly rate of $23.

However, an Inside Sales Development Assistant II's salary can vary significantly. Here’s a look at the typical salary range:

  • Top Earners (90th percentile): $55,033
  • Majority Range (25th-75th percentile): $41,900 to $51,300
  • Entry-Level (10th percentile): $37,075
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View as table View as graph 25% $41,900 10% $37,075 90% $55,033 75% $51,300 $47,200 50%(Median) Didn’t find job title? Click

Inside Sales Development Assistant II Salaries by Percentile

Annual
Salary
Monthly
Pay
Weekly
Pay
Hourly
Wage
75th Percentile $51,300 $4,275 $987 $25
Average $47,200 $3,933 $908 $23
25th Percentile $41,900 $3,492 $806 $20
Check out Inside Sales Development Assistant II Job Openings in Delaware
Sales Development Representative

Camping World Holdings - Milford, DE

Sales Development Representative

Delaware Home Buyers - Wilmington, DE

Sales Development I4

eTeam - Rehoboth Beach, DE

Sales Development I4

Excel Gens - Rehoboth Beach, DE

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Key Factors That Influence Inside Sales Development Assistant II Salaries

An Inside Sales Development Assistant II'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 Inside Sales Development Assistant Salaries?

Experience is a primary driver of an Inside Sales Development Assistant II'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:

  • Inside Sales Development Assistant I (0-1 years): $41,658
  • Inside Sales Development Assistant II (1-3 years): $47,165
  • Inside Sales Development Assistant III (3-5 years): $54,445
  • Inside Telephone Sales Supervisor (5+ years): $72,572
  • Inside Sales Development Senior Supervisor (5+ years): $89,072
Job Role Years of Experience Average Salary
Inside Sales Development Assistant I0-1 years$41,658
Inside Sales Development Assistant II1-3 years$47,165
Inside Sales Development Assistant III3-5 years$54,445
Inside Telephone Sales Supervisor5+ years$72,572
Inside Sales Development Senior Supervisor5+ years$89,072
$41,658 Inside Sa...
$47,165 Inside Sa...
$54,445 Inside Sa...
$72,572 Inside Te...
$89,072 Inside Sa...
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What Am I Worth?

Top Paying Cities for Inside Sales Development Assistant IIs

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:

  • Lincoln: $47,000
  • Little Creek: $47,300
  • Magnolia: $47,300

Inside Sales Development Assistant II Salary by Company Size: Startups vs. Enterprise

Inside Sales Development Assistant II salary potential scales significantly with company size. Data shows that Enterprise companies (5,000+ employees) pay the highest average salary at around $52,838. While startup companies pay approximate $44,699.

Inside Sales Development Assistant II Salary by Company Size

Company Size Employees Average Salary
Startup1~50$44,699
Growth Stage51~500$47,275
Established501~5000$51,024
Enterprise5000+$52,838

Inside Sales Development Assistant II Salary by Industry: Top Paying Sectors

For Inside Sales Development Assistant II 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 Business Services sectors offer the strongest compensation, at 20% above the average. In contrast, Inside Sales Development Assistant positions in Biotechnology or Transportation typically offer lower base pay, as these industries often view Inside Sales Development Assistant II as a support function rather than a direct revenue driver.

The top paying industry for an Inside Sales Development Assistant II

Industry Sector Average Annual Salary Average Hourly Rate Pay vs.Avg
Aerospace & Defense$56,640$27.020%

Inside Sales Development Assistant II Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how an Inside Sales Development Assistant II'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 August 01, 2026

Inside Sales Development Assistant II Salary Growth & Career Path

Promotions are the fastest way to increase your earnings. As an Inside Sales Development Assistant II, you have the following paths for advancement. The table below compares the salary raises for common next-step roles. By comparing these figures, you can choose the career path that best meets your financial goals.

Inside Sales Development Assistant II Salary Growth and Career Path
Next Step Role Estimate Salary Projected Raise
E- Commerce Strategic Sales Manager $91,100 93%
Inside Sales Development Assistant III $54,500 15%

Find Your Next Inside Sales Development Assistant II Job

Ready to take the next step in your career? Browse thousands of current Inside Sales Development Assistant II job openings on our job board. Use the search bar below to find your perfect match.

United States
  • Bruster's Real Ice Cream of Wilmington

    Wilmington, DE

    Bruster's Real Ice Cream of Wilmington | Wilmington, DE

    Job Description. Job Description. POSITION SUMMARY. This is a business development role focused on generating new revenue for our retail store, catering di... more

    7 Days Ago

  • Breakthru Beverage Group

    Middletown, DE

    Breakthru Beverage Group | Middletown, DE

    Sales Development Representative. This position is designed as a sales development role and will rotate through a number of different territories. The prim... more

    7 Days Ago

  • CSC Generation

    Selbyville, DE

    CSC Generation | Selbyville, DE

    Job Description. Job Description. For over 50 years, Cabinetry Unlimited has been the leading expert in Custom Cabinetry and Countertops throughout the Del... more

    10 Days Ago

  • Renuity

    Newark, DE

    Renuity | Newark, DE

    Job Description. Job Description. Entry Level Sales Development Specialist. Newark, DE. Base Pay + Uncapped Commission | Paid Training. At. Renuity. we’re ... more

    10 Days Ago

  • Touch of Modern (CSC Generation)

    Selbyville, DE

    Touch of Modern (CSC Generation) | Selbyville, DE

    New Business Development Associate. For over 50 years, Cabinetry Unlimited has been the leading expert in Custom Cabinetry and Countertops throughout the D... more

    10 Days Ago

  • Bee's Plumbing

    EASTGATE, WA

    Bee's Plumbing | EASTGATE, WA

    Bee’s Plumbing is seeking an Inside Sales Representative to support our growing residential and commercial plumbing business in the Seattle, WA area. In th... more

    6 Days Ago

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