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Baby Boom

The Population Baby Boom of 1946-1964 in the United States


Age-Sex Pyramid of the United States

The Baby Boomers can be seen as a wide spot in this age-sex pyramid for the U.S.

Updated May 29, 2014
Young males returning to the United States, Canada, and Australia following tours of duty overseas during World War II began families, which brought about a significant number of new children into the world. This dramatic increase in the number of births from 1946 to 1964 (1947 to 1966 in Canada and 1946-1961 in Australia) is called the Baby Boom.

In the United States, approximately 79 million babies were born during the Baby Boom. Much of this cohort of nineteen years (1946-1964) grew up with Woodstock, the Vietnam War, and John F. Kennedy as president.

In 2006, the oldest Baby Boomers are turning 60 years old, including the first two Baby Boomer presidents, Presidents William J. Clinton and George W. Bush, both born in the first year of the Baby Boom, 1946.

In the 1930s to early 1940s, new births in the United States averaged around 2.3 to 2.8 million each year. In 1945, the number was 2.8 million births; it marked the beginning of the Baby Boom. In 1946, the first year of the Baby Boom, new births in the U.S. skyrocketed to 3.47 million births!

New births continued to grow throughout the 1940s and 1950s, leading to a peak in the late 1950s with 4.3 million births in 1957 and 1961. (There was a dip to 4.2 million births in 1958) By the mid-sixties, the birth rate began to slowly fall. In 1964 (the final year of the Baby Boom), 4 million babies were born in the U.S. and in 1965, there was a significant drop to 3.76 million births. From 1965 on, there was a plunge in the number of births to a low of 3.14 million births in 1973, lower than any year’s births since 1945!

From 1973 on, Generation X was nowhere near a populous as their parents. The total births rose to 3.6 million in 1980 and then 4.16 million in 1990. For 1990 on, the number of births has remained somewhat constant – from 2000 to now, the birth rate has hovered at 4 million annually. It’s amazing that 1957 and 1961 are the peak birth years in raw number of births for the nation even though the total national population was 60% of the current population. Obviously, the birth rate among Americans has dropped precipitously.

The birth rate per 1000 population in 1957 was 25.3. In 1973, it was 14.8. The birth rate per 1000 rose to 16.7 in 1990 but today has dropped to 14.

The dramatic increase in births during the Baby Boom helped to lead to exponential rises in the demand for consumer products, suburban homes, automobiles, roads, and services. Demographer P.K. Whelpton forecast this demand, as quoted in the August 9, 1948 edition of Newsweek.

When the number of persons is rising rapidly it is necessary to prepare for the increase. Houses and apartments must be built; streets must be paved; power, light, water, and sewer systems must be extended; existing factories, stores and other business structures must be enlarged or new ones erected; and much machinery must be manufactured.

And that’s exactly what happened. The metropolitan areas of the United States exploded in growth and led to huge suburban developments, such as Levittown.

Preceding the Baby Boom was the cohort called the Silent Generation (including those born from 1925-1945). Following the Baby Boom was Generation X (1964-1979). Generation Y followed Generation X (1980 to the mid-1990s) and some are suggesting a Generation Z for the babies of the late 1990s through today.

I do hope those who name generations and cohorts start getting a bit more creative because Generation Alpha just doesn’t work for me. (During the 2005 Atlantic hurricane season, the list of names, ending with Z was exhausted, causing the use of the Greek alphabet to name hurricanes for the first time).

In 2007, the total number of births in the United States surpassed the record number of births previously reached in 1957. The total number of births in the U.S. in 2007 totaled 4,317,119.

See the next page for a chart of Births in the United States 1930-2007

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