Geological technicians collect and analyze rock, mineral, and soil samples to help companies understand what lies beneath the surface. The work is hands-on, technical, and you can enter with a high school diploma plus on-the-job training. Here is what the role involves, what skills matter most, and how to get started.
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Geological technicians document and record data from field samples and lab tests. You work with computers to process information, organize findings, and communicate results to supervisors and team members. The role draws on knowledge of mathematics, chemistry, physics, and engineering. You read technical documents, think critically about what the data shows, monitor equipment and procedures, and write reports. Much of your time involves getting information from various sources, planning your work, and staying in close contact with the geologists and engineers you support.
Core work activities
Career video courtesy of CareerOneStop.
Geological Technicians, Except Hydrologic Technicians earn a median of $53,350 a year, based on 2025 data from the U.S. Bureau of Labor Statistics. Pay rises with experience, specialty, and location.
The outlook is modest. Employment is projected to grow 2 percent from 2024 to 2034, little or no change for all occupations, with about 1,300 openings a year.
Top skills
Knowledge areas
Start with a high school diploma or equivalent. This field requires considerable preparation, so you will build skills through on-the-job training and hands-on experience. Many technicians take courses in geology, mathematics, chemistry, and computer applications to strengthen their foundation. Some employers offer formal training programs or apprenticeships. Reading comprehension, critical thinking, and active learning are essential as you develop expertise. Your counselor can help you identify entry-level positions and training opportunities in your area.
Most paths into this work start with a high school diploma and employer-sponsored training. If you are deciding between jumping into a job and taking additional coursework first, Pathly can map the geological technician, except hydrologic technician path that fits you and work through the options with your counselor.
You do not need a license to work as a geological technician, except hydrologic technician, but professional certifications can strengthen your resume.
Common certifications
You are drawn to hands-on, technical work with real materials and data. You enjoy problem-solving, working with tools and instruments, and seeing how science applies to practical challenges.
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Last updated July 1, 2026.
Data sources. Career details from the O*NET 30.3 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under CC BY 4.0. O*NET® is a trademark of USDOL/ETA. Salary and outlook figures from the U.S. Bureau of Labor Statistics (May 2025 wages; 2024–2034 projections), delivered via the CareerOneStop API. Certification, licensing, wage, and outlook data from CareerOneStop, sponsored by USDOL/ETA and the Minnesota Department of Employment and Economic Development (DEED).