A college education can affect nearly every aspect of a person’s life, and it may be more important now than ever before. Studies show the typical four-year college graduate earns $21,000 more than the typical high school graduate.

A four-year college degree may not make sense for everyone, however, and many are unable to afford college. Bachelor’s degree attainment rates vary considerably across the country.

Nationwide, 30.6% of adults have at least a bachelor’s degree. In the San Diego, California metro area, the 37.2% share is far larger than the comparable national share. Across California as a whole, some 32.3% of adults have at least a bachelor’s degree, a relatively modest share compared to all states.

Of the 26 metro area in California, San Diego’s bachelor’s degree attainment rate is the third highest.

Those with a college education are often better equipped to weather economic downturns and remain employed. The educational attainment rate in San Diego may partially explain the state of the area’s labor market. Across the metro area, 4.3% of the labor force are out of work, slightly lower than the 4.7% national unemployment rate.

Earning a college degree is one of the best ways to expand opportunities, especially to higher-paying jobs. The relatively high bachelor’s degree attainment rate in San Diego partially explains income levels across the metro area population. The typical household in the San Diego metro area earns $67,320 a year, well above the $55,775 median income nationwide.

A higher bachelor’s degree attainment rate in a given metro area often means that a larger than typical share of area adults also have a high school diploma. Similarly, a lower than average bachelor’s degree attainment rate often accompanies a lower than average share of adults with at least a high school diploma.

There are exceptions, however. While adults in the San Diego metro area are more likely to have a bachelor’s degree than adults across the country as a whole, the area is home to a lower than typical share of adults with a high school diploma. Across San Diego, 86.6% of adults have completed high school, compared to 87.1% of American adults.