To illustrate this point, one need only look at the biggest gainer in this religious competition - the unaffiliated group. People moving into the unaffiliated category outnumber those moving out of the unaffiliated group by more than a three-to-one margin. At the same time, however, a substantial number of people (nearly 4% of the overall adult population) say that as children they were unaffiliated with any particular religion but have since come to identify with a religious group. This means that more than half of people who were unaffiliated with any particular religion as a child now say that they are associated with a religious group. In short, the Landscape Survey shows that the unaffiliated population has grown despite having one of the lowest retention rates of all "religious" groups.

　　Another example of the dynamism of the American religious scene is the experience of the Catholic Church. Other surveys - such as the General Social Surveys, conducted by the National Opinion Research Center at the University of Chicago since 1972 - find that the Catholic share of the U.S. adult population has held fairly steady in recent decades at around 25%. What this apparent stability obscures, however, is the large number of people who have left the Catholic Church. Approximately one-third of the survey respondents who say they were raised Catholic no longer describe themselves as Catholic. This means that roughly 10% of all Americans are former Catholics. These losses, however, have been partly offset by the number of people who have changed their affiliation to Catholicism (2.6% of the adult population) but more importantly by the disproportionately high number of Catholics among immigrants to the U.S. The result is that the overall percentage of the population that identifies as Catholic has remained fairly stable.

　　In addition to detailing the current religious makeup of the U.S. and describing the dynamic changes in religious affiliation, the findings from the Landscape Survey also provide important clues about the future direction of religious affiliation in the U.S. By detailing the age distribution of different religious groups, for instance, the study`s statistics on religion show that more than six-in-ten Americans age 70 and older (62%) are Protestant but that this number is only about four-in-ten (43%) among Americans ages 18-29. Conversely, young adults ages 18-29 are much more likely than those age 70 and older to say that they are not affiliated with any particular religion (25% vs. 8%). If these generational patterns persist, recent declines in the number of Protestants and growth in the size of the unaffiliated population may continue.

　　Major changes in the makeup of American Catholicism also loom on the horizon. Latinos, who already account for roughly one-in-three adult Catholics overall, may account for an even larger share of U.S. Catholics in the future. For while Latinos represent roughly one-in-eight U.S. Catholics age 70 and older (12%), they account for nearly half of all Catholics ages 18-29 (45%).

　　Finally, the Landscape Survey documents how immigration is adding even more diversity to the American religious quilt. For example, Muslims, roughly two-thirds of whom are immigrants, now account for roughly 0.6% of the U.S. adult population; and Hindus, more than eight-in-ten of whom are foreign born, now account for approximately 0.4% of the population.

　　Other Survey Highlights
　　Other highlights in the report include
　　Men are significantly more likely than women to claim no religious affiliation. Nearly one-in-five men say they have no formal religious affiliation, compared with roughly 13% of women.
　　Among people who are married, nearly four-in-ten (37%) are married to a spouse with a different religious affiliation. (This figure includes Protestants who are married to another Protestant from a different denominational family, such as a Baptist who is married to a Methodist.) Hindus and Mormons are the most likely to be married (78% and 71%, respectively) and to be married to someone of the same religion (90% and 83%, respectively).

　　Mormons and Muslims are the groups with the largest families; more than one-in-five Mormon adults and 15% of Muslim adults in the U.S. have three or more children living at home.
　　The Midwest most closely resembles the religious makeup of the overall population. The South, by a wide margin, has the heaviest concentration of members of evangelical Protestant churches. The Northeast has the greatest concentration of Catholics, and the West has the largest proportion of unaffiliated people, including the largest proportion of atheists and agnostics.

　　Of all the major racial and ethnic groups in the United States, black Americans are the most likely to report a formal religious affiliation. Even among those blacks who are unaffiliated, three-in-four belong to the "religious unaffiliated" category (that is, they say that religion is either somewhat or very important in their lives), compared with slightly more than one-third of the unaffiliated population overall.

　　Nearly half of Hindus in the U.S., one-third of Jews and a quarter of Buddhists have obtained post-graduate education, compared with only about one-in-ten of the adult population overall. Hindus and Jews are also much more likely than other groups to report high income levels.
　　People not affiliated with any particular religion stand out for their relative youth compared with other religious traditions. Among the unaffiliated, 31% are under age 30 and 71% are under age 50. Comparable numbers for the overall adult population are 20% and 59%, respectively.
　　By contrast, members of mainline Protestant churches and Jews are older, on average, than members of other groups. Roughly half of Jews and members of mainline churches are age 50 and older, compared with approximately four-in-ten American adults overall.
　　In sharp contrast to Islam and Hinduism, Buddhism in the U.S. is primarily made up of native-born adherents, whites and converts. Only one-in-three American Buddhists describe their race as Asian, while nearly three-in-four Buddhists say they are converts to Buddhism.
　　Jehovah`s Witnesses have the lowest retention rate of any religious tradition. Only 37% of all those who say they were raised as Jehovah`s Witnesses still identify themselves as Jehovah`s Witnesses.
　　Members of Baptist churches account for one-third of all Protestants and close to one-fifth of the total U.S. adult population. Baptists also account for nearly two-thirds of members of historically black Protestant churches.

日期：2009-10-07　09:31:09

　　调查报告中的美国宗教派别和比例，基督教占主流，但是也分成很多教派，比如新教、天主教、摩门教、耶和华见证会、东正教等。
　　由于这第一修正案的原因，美国是不能设立国教的，国会和政府也不能通过新闻管制条列之类的法令来限制言论、出版、和平集会和请愿的权力。
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　　1791年啊，兄弟们。那时候的世界是什么样子。法国刚开始大革命，随后就是拿破仑皇帝与欧洲英俄普奥等君主帝国十数年的战争。中国则是乾隆末年，日本是幕府时期。
　　不能不向伟大的杰斐逊等先贤们致敬！