Nuclear Engineer.
St. Louis.
$100,000
median salary, 11% below the national average
$78,000 to $132,000. Last updated April 2026.
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Data points to own the conversation.
A Nuclear Engineer in St. Louis earns a median of $100,000 in 2026. That is 11% below the national average. The range runs from $78,000 to $132,000, and where you land depends on your experience, your skills, and how well you negotiate. The limited talent pool and security clearance requirements create strong salary floors.
Salary range
Where do you fall?
Salary by experience
The gap between entry and lead level is typically $90,000. Where you land depends on years of experience and what you bring to the table.
Entry (0-2 yrs)
$65,000
to $80,000
Mid (3-5 yrs)
$85,000
to $105,000
Senior (6-9 yrs)
$110,000
to $130,000
Lead (10+ yrs)
$125,000
to $155,000
Salary trend
+4% YoYTotal compensation
Base salary is not the full picture. Equity, bonus, and signing can add $28,000 to the total package.
Base
$100,000
Equity
$16,000
Bonus
$10,000
Signing
$2,000
Estimated total: $128,000
How St. Louis compares
St. Louis, MO
$100,000
Cost of living: 10% below average
National Average
$112,000
St. Louis is $12,000 below
Nuclear Engineer salary by city
Salary by role in St. Louis
What you should know
The Nuclear Engineer landscape in St. Louis is not what most salary sites will tell you. St. Louis offers one of the most affordable major metro areas in the country, with a strong base in healthcare, financial services, and manufacturing. The region's anchor employers include Boeing, Centene, and Washington University's medical campus. A growing biotech and plant sciences corridor centered on the Cortex Innovation District is attracting new investment and talent. The limited talent pool and security clearance requirements create strong salary floors. Reactor design versus decommissioning roles show 10 to 20% variance. Engineers at operating plants earn shift differentials, while those in the growing small modular reactor (SMR) sector command premiums from venture-backed firms competing for scarce talent.
Junior nuclear engineers start at $88,000 to $100,000. Senior engineers and reactor specialists earn $112,000 to $148,000 after five to eight years. Plant managers and engineering directors reach $155,000 to $210,000, with chief nuclear officers exceeding $250,000. In St. Louis, cost of living sits near the national average, so the numbers you see are roughly what you keep.
Base salary is not the full picture. Utility employers offer 10 to 15% annual bonuses, pension plans, and shift differentials of 8 to 15% for plant-based roles. NRC-licensed senior reactor operators receive $15,000 to $25,000 license premiums. Relocation packages are standard given limited plant locations. And on the tax side: missouri's top income tax rate is about 4.8%, and St. Louis City adds a 1% earnings tax. The low base cost of living means your after tax salary still stretches further than in most metros. When someone quotes you $100,000, ask what the total package looks like. The gap between base and total comp is where real money hides.
On negotiation: Emphasize your willingness to work in person at Cortex or the BJC campus. St. Louis employers offer higher packages for candidates who commit to the local innovation hubs. The range for Nuclear Engineers in St. Louis runs from $78,000 to $132,000. That is not a narrow window. Where you land inside it depends almost entirely on whether you negotiate and how well you prepare.
Sources: SEC filings, H-1B LCA (DOL), BLS OES, 50+ job posting platforms. COL: BEA Regional Price Parities (2025). Data verified by Justin Bartak, Founder & Chief AI Officer. Last verified April 8, 2026. Full methodology
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Common questions.
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