Summary: Number of births, birth and parent characteristics

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This database report counts of live births occurring within the United States by state, county, child's gender and weight, mother's race, mother's age, mother's education, gestation period, and prenatal care.  Births to nonresidents of the United States are excluded from all tabulations by place of residence. Data are derived from birth certificates. Counties with fewer than 100,000 persons are combined together under the label "Unidentified Counties."  For confidentiality reasons, totals of 1-5 in counties are suppressed.  Data are not available for all counties. 


Birth rates and fertility rates are not available from 1995-2002.  Birth rates and fertility rates by race and ethnicity are not available from 2020-2021.  We expect the NCHS to update these over the next year, and we will publish them when available.


Changes in demographic category classifications in 2010 make some birth and fertility rates comparisions inconsistent with earlier years.  Users should exercise caution when comparing time series data across races and/or ethnicities because of this change. 


Note that some states, including California, ceased reporting the mother's age and marital status, e.g., Mothers 25-29, Unmarried, Mothers 25-29, Married, etc. in 2017.  Instead, while states still report the mother's age, they report marital status as unknown or not available.  


See additional documentation from the CDC for changes in some variables over time. 

Geographic Coverage: U.S., States, Counties

Periodicity: Annually

Series Begins/Ends: 1995 - 2021

Source (APA): RAND State Statistics. (2022, December 28). Births.
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Derived From: Centers for Disease Control and Prevention (CDC)

Updated:  Dec. 28, 2022 Estimated next update: Jun. 28, 2023

Please enter a state or county.    All

Please enter a category.    <ul style=list-style-type:disc;>
<li>Birth rates = number of births divided by total population.</li>
<li>Fertility rates = number of births divided by the number of females ages 15- 44.</li>
<li>Mother's Race or Hispanic Origin includes American Indian, Alaskan Native, Asian, Pacific Islander, Black or African American, Central or South American, Cuban, Hispanic, Mexican, White, Puerto Rican, other combinations, and unstated.  Please note that the CDC does not provide additional race or Hispanic origin information.</li>
<li>Birthweight is the weight of the baby (in grams) when it is born. 1 pound = 454 grams.</li>
<li>Gestational Period is the range of weeks that represents the duration of the pregnancy at the time of birth. Usual gestation period for a normal birth is 38-42 weeks.</li>
<li>Prenatal Care states if and when prenatal care began.  Prenatal care represents regular check-ups throughout the course of the pregnancy that benefit both mother and child.</li>

<li>See Additional Background above for more category details.

Please choose a time period.

Free users may access only the most recent year's data.