Security Engineer Salary in St. Louis, MO (2026)
Median Security Engineer salary in St. Louis is approximately $118,300/year — 9.0% below the US national average.
Salary breakdown — St. Louis
After-tax estimate
| City | Cost mult. | Estimated annual | vs St. Louis |
|---|---|---|---|
| El Paso, TX | 0.91× | $118,300 | +$0 |
| Cleveland, OH | 0.91× | $118,300 | +$0 |
| Winston-Salem, NC | 0.91× | $118,300 | +$0 |
| Columbus, OH | 0.92× | $119,600 | +$1,300 |
| Indianapolis, IN | 0.90× | $117,000 | -$1,300 |
Security Engineer salaries in St. Louis, MO
The estimated median Security Engineer salary in St. Louis, Missouri is $118,300/year, working out to approximately $57/hour at full-time, $4,550 per biweekly paycheck, or $9,858/month before taxes. St. Louis's cost-of-living multiplier of 0.91× national reflects local prices, housing costs, and employer concentration in this metro area.
Compared to the Missouri state average for this role ($117,000), St. Louis pays about $1,300 more. This typically reflects how the metro area's cost of living and employer density differ from the state as a whole.
Take-home pay in St. Louis
Of the gross $118,300, you take home roughly $85,590 after:
- Federal income tax (~14% effective at this income)
- FICA — Social Security 6.2% + Medicare 1.45% = 7.65%
- Missouri state income tax (~5% effective)
- St. Louis local tax: 1.00% — significant for St. Louis workers
That works out to about $7,133/month after-tax — useful for budgeting rent (typically 25–35% of net income), savings (15–20% target), and other expenses. For an exact calculation including 401(k), HSA, and your filing status, use our St. Louis Paycheck Calculator.
What affects your actual pay
- Experience: entry-level often 25–35% below median; senior roles 40–60%+ above.
- Specific employer: top-tier employers in St. Louis pay 10–25% above market for the same role.
- Industry: a Software Engineer at a tech company in St. Louis typically out-earns one at a non-tech employer.
- Negotiation: simply negotiating an offer can shift comp by 5–15%.
- Education and credentials: degrees and licenses (especially for healthcare, legal, engineering) can move comp by 15–30%.
- Remote vs in-office: many St. Louis employers now base pay on cost of living, with remote workers in cheaper metros paid less.
Related calculators
Security Engineer Salary in Missouri — state-level average. Salary Calculator — convert hourly ↔ annual. St. Louis Paycheck Calculator — exact take-home. Income Tax Calculator — federal tax with brackets. Investment Calculator — long-term portfolio growth.