San Diego is one of the greatest cities in California, but recent graduates are now choosing new cities to fulfill their career goals. Studies show recent college grads need more than craft beer and a bike lane, they need affordability and wage growth.

New data suggest there are more than a few compelling reasons why millennials are now leaving sunny California and looking for a new zip code in Denver, Colorado. The state's millennial population increased by nearly 15% in just five years, and here are some of the reasons why.

1. City living, affordable cost.

Many younger millennials want the feel of being in a big city but can’t afford the astronomical cost of living in places like New York or San Francisco. In Denver, you can enjoy the urban feel at a fraction of the living expenses. If you’re like the average millennial who carries $30,000 in debt, moving to the mile-high city might be a good option for you.

In the past decade, the population of millennials has experienced a boom in Denver. According to a study of movement from 2009-2014 by the Brooking Institute, the city enjoyed a net annual migration increase of 12,682 for people between the ages of 35-34.

This is the highest of any metropolitan area in the United States. Experts credit an increase in walkability, good paying jobs, and transportation. The housing market also makes homeownership an achievable reality for many young people.

2. Experience the good life.

With the increase in young population came an increasing sense of urbanity and nightlife. The Lower Highlands section of town, also known as “LoHi,” has transformed in recent years to feature restaurants with affordable food and entertainment. More than 65 microbreweries set up shop in the other downtown areas, and swanky bars dot the cityscape.

3. A progressive mindset.

Another factor that brings millennials to Denver is its general feeling of progressivism. Colorado is unique in that it’s home to some of the most conservative and the most liberal cities in the country. On the right side of the spectrum, cities like Colorado Springs and Aurora serve as a haven for the conservative set.

Denver, on the other hand, is a mecca for the progressive mindset. One New York Times article quipped that is was difficult to determine if there were more bars or signs depicting Vermont Senator Bernie Sanders.

Denver’s attitude of progressivism is informed by its millennial population as well as its policies. Colorado was one of the first states to legalize marijuana, and the city tends to take a progressive stance on issues such as healthcare and the economy.

4. Old city charm.

Homeownership can become a reality for many prospective buyers in Denver because of the affordable housing costs. Unlike living in the suburbs, you won’t have to settle on a pre-fabricated house. Millennials have their pick of old, retro, and charming homes throughout the city – choose a 19^th-century mansard style, or a mid-century bungalow to make your own.

5. Outdoor recreation.

Finally, you can’t ignore the natural charm and beauty of living in the mountainous city. On your morning commute, you can look at the majestic Rockies, which provide their own source of entertainment through hiking and winter activities. Because of its ample outdoor recreation opportunities, Denver is also one of the healthiest cities in America.

Denver has become more appealing to millennials because it offers all the perks of living in a big city such as nightlife, urbanity, and progressivism. It also offers so much more – the ability to own a unique home, have disposable income, and enjoy your weekends in one of the country’s most iconic natural wonders.

Looking for employment opportunities after college can be overwhelming and cities that offer a combination of affordability, job opportunity and wage growth they are more inclined to choose that place to begin their careers.