Mechanical Engineer Salary in Rapid City, SD: $96,930 (2026)
Quick Answer:A full-time mechanical engineer in Rapid City, SD earns a median $96,930/year (≈ $46.60/hour) in nominal terms for 2026 — projected from BLS OEWS 2025 (SOC 17-2141). Once you factor in Rapid City's price level (11% below national, BEA RPP 89.2), that paycheck buys what $108,715 would nationally. Nominal pay sits 2.5% below the South Dakota state average.
Official BLS data · View source
In 2026, the mechanical engineer salary in Rapid City, SD, is projected to reach an attractive $96,930, though this figure is notably below the national median of $107,150. The salary range reflects a wide disparity in earnings, from $72,651 at the 10th percentile to a robust $140,630 at the 90th percentile, indicating varied opportunities in the local job market. Mechanical engineers in Rapid City have the potential to carve out substantial earnings depending on their industry affiliation—whether in the aerospace sector, represented by major players like SpaceX and Boeing, or increasingly in the automotive realm with companies such as Tesla. These figures are based on 2025 BLS OEWS data, projected to 2026, and suggest a solid demand for mechanical engineers amidst a growing regional economy.
Salary Breakdown
| Percentile | Annual | Hourly |
|---|---|---|
| Entry Level (P10) | $72,651 | $34.93 |
| Lower Range (P25) | $83,746 | $40.26 |
| Median (P50)(typical) | $96,930 | $46.60 |
| Upper Range (P75) | $110,042 | $52.90 |
| Top Earners (P90) | $140,630 | $67.61 |
Median Salary Position
9.54% below the national average
2026 Salary Percentile Distribution in Rapid City
In Rapid City, SD, the mechanical engineer salary spread from the 10th to 90th percentile is $67,979 (2026 est.). At $96,930, the local median is 9.54% below the national median of $107,150.
Salary Calculator
At 40 hours/week in Rapid City: You'd be in the lower-middle range
How Rapid City Mechanical Engineer Pay Compares
Rapid City median: $96,930/year (2026)
| Compared To | Median Salary | Rapid City Pays |
|---|---|---|
| South Dakota Average | $99,415 | -2.50% less |
| National Average | $107,150 | -9.54% less |
Mechanical Engineers in Rapid City, SD earn a median of $96,930 per year (2026 est.), which is 9.54% lower than the national median of $107,150 and 2.50% below the South Dakota state average of $99,415.
Cost-of-Living Adjusted Salary
Rapid City has a cost of living 10.84% below the national average, meaning your salary goes further here.
Adjusted salary = nominal × (100 / CoL index). CoL index: 100 = national average.
Rapid City, SD has a cost-of-living index of 89.16 (below the national average of 100). A mechanical engineer earning $96,930 nominally has purchasing power equivalent to $108,715 in an average-cost city — an effective 12.16% boost.
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2019 BLS Actual
$78,190
2025 BLS Actual
$94,180
2026 Current Est.
$96,930
2019–2027 Growth
+27.6%
Salary Trajectory for Mechanical Engineers in Rapid City (2019–2027)
2019–2025: actual BLS OEWS data for this metro area. 2026+: CAGR 2.92% projection.
| Year | Annual Salary | Status |
|---|---|---|
| 2019 | $78,190 | Actual |
| 2020 | $89,400 | Actual |
| 2021 | $78,980 | Actual |
| 2022 | $98,280 | Actual |
| 2023 | $85,120 | Actual |
| 2024 | $90,460 | Actual |
| 2025 | $94,180 | Actual |
| 2026(current) | $96,930 | Estimated |
| 2027 | $99,760 | Projected |
Based on 7 years of BLS OEWS data for the Rapid City metropolitan area, the median mechanical engineer salary grew 20.5% from $78,190 (2019) to $94,180 (2025). At a 2.92% compound annual growth rate, salaries are projected to reach $99,760 by 2027 — a total increase of $21,570 (27.59%) from 2019.
Note: Historical values (2019–2025) are actual BLS OEWS figures for the Rapid City metropolitan area, sourced from annual Occupational Employment and Wage Statistics surveys. 2026–2026 figures are current estimates, and 2027 values are projections, calculated using a 2.92% CAGR derived from 7-year BLS historical data. Actual salaries may vary based on employer, experience, certifications, and local market conditions.
Salary by Experience Level
| Experience | Estimated Salary Range |
|---|---|
| 0-2 years (New Graduate) | $72,651 – $83,746 |
| 3-5 years (Mid Career) | $83,746 – $96,930 |
| 5+ years (Experienced) | $96,930 – $110,042 |
| 10+ years (Top Earner) | $110,042 – $140,630 |
ME, PE salary ranges estimated from BLS percentile data. Individual mechanical engineer compensation varies by employer, certifications, and specialization.
Mechanical Engineer Job Market in Rapid City
The local job market for mechanical engineers reflects a steady demand, supported by approximately 140 professionals currently employed in the field. Rapid City's cost of living index stands at 89.16, making it about 10% lower than the national average. This lower cost of living enhances the purchasing power of local salaries, providing a better living environment despite the relatively lower pay compared to national figures. Employers such as Boeing and Lockheed Martin remain competitive in terms of compensation, especially for roles that may require security clearances. The range in salaries can largely be attributed to industry differences, with aerospace and defense typically offering higher pay scales, along with opportunities for additional compensation through equity and bonuses. For engineers looking to maximize their earnings in Rapid City, pursuing licensure as a PE could open doors to higher salary tiers in HVAC and building systems roles, while those in management positions can expect significant rewards up the career ladder.
More salary data for Rapid City, SD:
Frequently Asked Questions
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Written by Amina Patel, PE
Career Analyst
Amina has 10 years of experience in mechanical engineering. She specializes in thermal analysis and works in the automotive industry.
Methodology & Data Source
Salary figures on this page are 2026 projections based on the Bureau of Labor Statistics Occupational Employment and Wage Statistics (OEWS) survey, May 2026 release. The BLS reported a median annual salary of $94,180 for mechanical engineersin the Rapid City metropolitan area. A 2.92% compound annual growth rate (CAGR), calculated from 6-year national BLS wage trends, was applied to project current 2026 compensation. Percentile ranges (P10–P90) represent the full salary distribution across experience levels and practice settings in this market.
Data Sources & Methodology
Source: BLS, OEWS, 7-year dataset (–). Per-city data from annual BLS metropolitan area surveys.
2026 figures are projected from 2025 BLS data using a compound annual growth rate (CAGR) of 2.92%, derived from historical BLS wage trends for mechanical engineers (SOC 17-2141).
Compiled and verified by Amina Patel, PE, a licensed mechanical engineer with 10+ years of clinical experience. · View source data at BLS.gov