In the years since World War II, there has been a substantial reduction in the number of priests per capita in the Catholic Church, a phenomenon considered by many to constitute a "shortage" in the number of priests. From 1980 to 2012, the ratio of Catholics per priest increased globally, with the number of Catholics per priest going from 1,895 to 3,126."
In 2014, 49,153 parishes in the world had no resident priest pastor. Between 1970 and 2012, the number of priests declined from 419,728 to 414,313.
Worldwide, the number of priests in 1970 was 419,728. In 2012, there were a total of 414,313 priests. While the total number of priests worldwide has therefore remained about the same since 1970, the Catholic population has nearly doubled, growing from 653.6 million in 1970 to 1.229 billion in 2012. In 2012 the global number of candidates for the priesthood also showed its first decline in recent years.
The number of parishes with no resident priest pastor has grown from 39,431 in 1970 to 49,153 in 2012. The number of parishes without a priest does not include the thousands of parishes that have closed or merged for lack of priests.
Mexico is facing a "crisis of vocation," according to Elio Masferrer, a religion expert at Mexico's National School of Anthropology and History. Over 85 percent of the population is Catholic, but one priest is expected to minister to approximately 7,000 followers. In the United States, where approximately one quarter of the population is Catholic, there is one priest per 2,000 Catholics.
The situation in the United States is that the "Catholic Church is unique among eleven of the largest Christian denominations in several areas: the dwindling supply of priests, the increasing number of lay people per priest, the declining number of priests per parish, [and] the increasing number of 'priestless' parishes...In the Catholic Church, the total number of priests has declined from 58,534 in 1981 to 52,227 in 1991, 45,713 in 2001 and 37,192 in 2015 (a 36 percent loss between 1981 and 2016). Requirements for celibacy, poverty and obedience may be factors. In every other group, including denominations in which membership has declined (e.g., the Episcopal and Evangelical Lutheran churches), the total number of clergy has increased.
With the Catholic population increasing steadily and the number of priests declining, the number of laypeople per priest has climbed from 875:1 in 1981 to 1,113:1 in 1991, 1,429:1 in 2001 and 2,000:1 in 2012 (a 130 percent increase). The declining number of priests in parish ministry is producing a marked increase in the number of 'priestless' parishes. In 1960, only about 3 percent of Catholic parishes had no resident pastor. By 2000 that figure was up to 13 percent, and by the summer of 2003 it had risen to 16 percent".