This appendix details the methods used in this study to project changes in the population size and geographic distribution of eight major religious groups from 2010 to 2050. It is organized in five sections. The first section explains how the baseline (2010) religious composition estimates were derived. The second section describes how key input data […]
When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration. In the case of religious groups, a fifth factor is […]
The Christian share of the U.S. population is declining, while the share of Americans who do not identify with any organized religion is growing. These changes affect all regions in the country and many demographic groups.
This is the sixth time the Pew Research Center has measured restrictions on religion around the globe.44 This report, which includes data for the year ending Dec. 31, 2013, generally follows the same methodology as previous reports, although it includes one new analysis, which is discussed below. Pew Research uses two 10-point indexes – the […]
The study involved five separate research methodologies in each city, each of which is detailed below. City Selection Process The three cities studied as a part of Local News in a Digital Age are not meant to be representative of the United States as a whole, but rather serve as detailed case studies of local […]
Overview The estimates presented in this report for the unauthorized immigrant population are based on a residual estimation methodology that compares a demographic estimate of the number of immigrants residing legally in the country with the total number of immigrants as measured by a survey—either the American Community Survey or the March Supplement to the […]
Nearly 40% of the world's Catholics live in Latin America, but many people in the region have converted from Catholicism to Protestantism, while some have left organized religion altogether.
Nearly 40% of the world's Catholics live in Latin America, but many people in the region have converted from Catholicism to Protestantism, while some have left organized religion altogether.
The survey was conducted via face-to-face interviews under the direction of Princeton Survey Research Associates International in Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua and Panama, and Ipsos Public Affairs in Argentina, Bolivia, Brazil, Chile, Colombia, the Dominican Republic, Ecuador, Paraguay, Peru, Puerto Rico, Uruguay and Venezuela. The survey is based on samples of […]
Latin America is home to more than 425 million Catholics – nearly 40% of the world’s total Catholic population – and the Roman Catholic Church now has a Latin American pope for the first time in its history. Yet identification with Catholicism has declined throughout the region, according to a major new Pew Research Center […]