America:

In spite of recent declines in popularity among Asian Americans, Christianity remains the most common religion, according to a Pew Research Centre study.

Pew reported that a third of Asian American adults, about 34%, say their present religion is Christianity. Pew surveyed Chinese, Filipino, Japanese, Indian, Korean, and Vietnamese Americans.

The findings were derived from 20 focus groups and five one-on-one interviews with more than 100 Asian American adult participants held between April and July of this year.

The percentage of Asian Americans who identify as Christians has decreased from 42% in 2012, the last time Pew surveyed Asian Americans extensively about their religious affiliation.

More than half of Asian Americans express a connection to Christianity in the most recent study, either directly or indirectly through family or culture.

In terms of the sub-demographics studied, Filipino Americans claim to have the highest percentage of Christians (74%). The next-highest number, reported by Korean Americans, is 59%; the lowest shares, reported by Japanese and Chinese, are 25% and 23%, respectively.  57% of Filipinos consider themselves to be Catholic while only 3% of Japanese and 5% of Chinese claim to be Catholic. The statistics coincide with a rising proportion of Asian Americans who describe themselves as "religiously unaffiliated," which has been steadily rising in recent years among all Americans.

In 2012, only 26% of Asian Americans identified as unaffiliated; according to the most recent survey results, 32% do. Comparing religiously unaffiliated Asian Americans to the overall Asian American population, Pew discovered that they tended to be younger, born in the United States.  Asian Americans who were born abroad were 32% more likely than those who were born here to attend religious services at least once a month.

In contrast, less than one-third of Asian Americans think religion is "very important" to them. The survey revealed that just a fifth of American adults or 1 in every 25 people claim to attend religious services at least once a week.

Christianity continues to make up a relatively small portion of the overall religious population outside of the United States, namely in Asian countries. According to Pew Research, Islam, Buddhism, and Hinduism are all growing faster than Christianity in the Asia-Pacific region.