Networking can be difficult and time-consuming, especially early in your career. But graduating from a school with a solid alumni base means diving straight into a built-in network of professionals.

The Princeton Review compiled a list of the 25 colleges with the best alumni networks in the country, featured in the book "Colleges That Pay You Back: 2016 Edition," published in February, based on students' ratings of how visible and active alumni are on their campuses.

We've also gathered salary data from PayScale to show how much new graduates from these schools can expect to make. Read on to see schools with active alumni who help students get ahead.