April 3, 2025

America’s Changing Fertility Trends Told in Numbers by the CDC

Maggie Jones
Registered Nurse
Table of Contents

Over the past three decades, birth rates in the U.S. have been steadily declining, and the latest data from the Center for Disease Control and Prevention (CDC) confirms that this trend is continuing. But what does this actually mean for families, communities, and the country as a whole? Let’s break it down in simple terms.

Fewer Babies, Older Mothers

In 1990, the average number of children per woman (known as the Total Fertility Rate or TFR) was just above the replacement level of 2.1, meaning that each generation was having enough children to replace itself. Fast forward to 2023, and that number has dropped to 1.62—well below replacement level. This means fewer babies are being born overall.

One of the biggest changes is the shift in the age of mothers. Younger women—especially those under 30—are having fewer children than in previous generations. In contrast, birth rates have increased for women in their 30s and even 40s. Simply put, more women are waiting longer to have kids.

Why Are Birth Rates Dropping?

There’s no single reason for this trend, but a few key factors stand out:

  • Career & Education – More women are pursuing higher education and careers, often delaying childbirth until they feel financially and emotionally ready.

  • Economic Pressures – The rising cost of living, student debt, and childcare expenses make having children a significant financial decision.

  • Lifestyle Choices – More people are prioritizing personal goals, travel, and financial stability before starting families.

  • Access to Birth Control & Family Planning – Advances in reproductive healthcare allow people to plan their families more effectively than ever before.


The Impact of Fewer Births

A declining birth rate isn’t necessarily bad, but it does have consequences. With fewer babies being born, the future workforce will be smaller, which could impact economic growth and programs like Social Security. It also means an aging population, with fewer young people to support older generations.

On the flip side, having children later in life can mean more financial stability and better resources for raising children. Some experts also argue that lower birth rates can be beneficial in terms of sustainability and resource management.

What Does the Future Hold?

It’s hard to say whether birth rates will continue to decline or if they’ll level out. Some countries with similar trends have tried to encourage higher birth rates by offering financial incentives, better parental leave, and childcare support. Whether the U.S. will follow suit remains to be seen.

For now, the trend is clear: Americans are having fewer children, and they’re having them later in life. While this shift presents challenges, it also reflects changing societal values and priorities. With more people delaying parenthood, fertility preservation is becoming an increasingly popular option. Freezing eggs or embryos allows individuals to extend their reproductive window, giving them more flexibility to start a family when the time is right.

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