Do a google serach for popular programming language of 2017, you will get so many search results with lot of varation in results.
There are many ways to rank programming languages, like the number of websites built with them, Google search results, GitHub projects or StackOverflow questions.
This outcome is based on sampling of data from popular job site Indeed.com. Below is the list based on the popularity.

1. SQL
2. Java
3. Python
4. JavaScript
5. C++
6. C#
7. iOS Family
8. PHP
9. Ruby on Rails