In Texas, the average annual salary for a criminal investigator is approximately $72,897. This figure is derived from an analysis of 24 salaries reported in job postings on Indeed over the past 36 months, with the data being updated as of May 30, 2025. It's important to note that salaries for criminal investigators can vary significantly based on factors such as experience, education, and the specific region within Texas where they are employed. For instance, investigators working in larger metropolitan areas may earn higher salaries compared to those in rural locations. Additionally, specialized skills or certifications can also influence earning potential, making it a field where continued education and professional development can lead to increased compensation over time.