Kaggle is the world's largest community of data science and machine learning practitioners/enthusiasts. Kaggle is owned by Google, Inc., hosts online competitions, serves as a data platform, and provides a cloud-based sandbox for data science work.
In recent years, Kaggle has conducted a survey of users to determine trends in the practice of data science. The results of the 2018 survey can be found at https://www.kaggle.com/sudhirnl7/data-science-survey-2018 (or by googling "2018 Kaggle Data Science Survey." The 2018 results are based on nearly 24,000 responses. Some interesting insights of the survey results are:
The survey results seem to suggest that the Python programming language is the most popular choice for individuals practicing data science.