W Why We Die

An open data project

Understanding death, birth, and population change in America

Why We Die turns official CDC data into interactive charts you can actually explore, how many people died and why, how many were born, and how the US population has shifted as a result.

The US, so far today

By the Numbers
Births
6,814
Deaths
5,801
Net change
+1,013

Roughly one US birth every 9 seconds, one death every 10. These are the latest 12-month totals spread evenly across the clock, a projection and not a live feed.

In the year

Americans born
4,058,814
14.4 per 1,000 people
Gen Z generation
Americans who died
2,403,351
Population change (births − deaths)
+1,655,463
Leading cause of death
Heart disease
710,760 deaths

Births 1909–2025 · deaths & population change 1968–2025 · leading cause 1999 on (the NCHS 113-cause era) · generation labels from Pew's cutoffs through Gen Z, McCrindle Research's for Gen Alpha/Beta (Silent onward). Source: CDC WONDER pipeline snapshots (mortality.json, natality.json) + CDC Socrata NCHS Births and General Fertility Rates (e6fc-ccez) for pre-1960 births.

Every year, all sources
Data table
Year Births Birth rate Deaths Natural increase Leading cause
19092,718,00030———
19102,777,00030.1———
19112,809,00029.9———
19122,840,00029.8———
19132,869,00029.5———
19142,986,00029.9———
19152,965,00029.5———
19162,964,00029.1———
19172,944,00028.5———
19182,948,00028.2———
19192,740,00026.1———
19202,950,00027.7———
19213,055,00028.1———
19222,882,00026.2———
19232,910,00026———
19242,979,00026.1———
19252,909,00025.1———
19262,839,00024.2———
19272,802,00023.5———
19282,674,00022.2———
19292,582,00021.2———
19302,618,00021.3———
19312,506,00020.2———
19322,440,00019.5———
19332,307,00018.4———
19342,396,00019———
19352,377,00018.7———
19362,355,00018.4———
19372,413,00018.7———
19382,496,00019.2———
19392,466,00018.8———
19402,559,00019.4———
19412,703,00020.3———
19422,989,00022.2———
19433,104,00022.7———
19442,939,00021.2———
19452,858,00020.4———
19463,411,00024.1———
19473,817,00026.6———
19483,637,00024.9———
19493,649,00024.5———
19503,632,00024.1———
19513,820,00024.9———
19523,909,00025.1———
19533,959,00025.1———
19544,071,00025.3———
19554,097,00025———
19564,210,00025.2———
19574,300,00025.3———
19584,246,00024.6———
19594,244,79624———
19604,257,85023.7———
19614,268,32623.3———
19624,167,36222.4———
19634,098,02021.7———
19644,027,49021.1———
19653,760,35819.4———
19663,606,27418.4———
19673,520,95917.8———
19683,501,56417.61,930,0821,571,482—
19693,600,20617.91,921,9901,678,216—
19703,731,38618.41,921,0311,810,355—
19713,555,97017.21,927,5421,628,428—
19723,258,41115.61,963,9441,294,467—
19733,136,96514.81,973,0031,163,962—
19743,159,95814.81,934,3881,225,570—
19753,144,19814.61,892,8791,251,319—
19763,167,78814.61,909,4401,258,348—
19773,326,63215.11,899,5971,427,035—
19783,333,279151,927,7881,405,491—
19793,494,39815.61,913,8411,580,557—
19803,612,25815.91,989,8411,622,417—
19813,629,23815.81,977,9811,651,257—
19823,680,53715.91,974,7971,705,740—
19833,638,93315.62,019,2011,619,732—
19843,669,14115.62,039,3691,629,772—
19853,760,56115.82,086,4401,674,121—
19863,756,54715.62,105,3611,651,186—
19873,809,39415.72,123,3231,686,071—
19883,909,510162,167,9991,741,511—
19894,040,95816.42,150,4661,890,492—
19904,158,21216.72,148,4632,009,749—
19914,110,90716.22,169,5181,941,389—
19924,065,01415.82,175,6131,889,401—
19934,000,24015.42,268,5531,731,687—
19943,952,767152,278,9941,673,773—
19953,899,58914.62,312,1321,587,457—
19963,891,49414.42,314,6901,576,804—
19973,880,89414.22,314,2451,566,649—
19983,941,55314.32,337,2561,604,297—
19993,959,41714.22,391,3991,568,018Heart disease
20004,058,81414.42,403,3511,655,463Heart disease
20014,025,93314.12,416,4251,609,508Heart disease
20024,021,726142,443,3871,578,339Heart disease
20034,089,95014.12,448,2881,641,662Heart disease
20044,112,052142,397,6151,714,437Heart disease
20054,138,349142,448,0171,690,332Heart disease
20064,265,55514.32,426,2641,839,291Heart disease
20074,316,23314.32,423,7121,892,521Heart disease
20084,247,694142,471,9841,775,710Heart disease
20094,130,66513.52,437,1631,693,502Heart disease
20103,999,386132,468,4351,530,951Heart disease
20113,953,59012.72,515,4581,438,132Heart disease
20123,952,84112.62,543,2791,409,562Heart disease
20133,932,18112.42,596,9931,335,188Heart disease
20143,988,07612.52,626,4181,361,658Heart disease
20153,978,49712.42,712,6301,265,867Heart disease
20163,945,87512.22,744,2481,201,627Heart disease
20173,855,50011.82,813,5031,041,997Heart disease
20183,791,71211.62,839,205952,507Heart disease
20193,747,540—2,854,838892,702Heart disease
20203,613,647—3,383,729229,918Heart disease
20213,664,292—3,464,231200,061Heart disease
20223,667,758—3,279,857387,901Heart disease
20233,596,017—3,090,964505,053Heart disease
20243,628,934—3,072,666556,268Heart disease
20253,606,407—3,096,850509,557Heart disease

What this site does

Nearly every chart on this site is built from public data published on data.cdc.gov, CDC's open data platform (the International comparison instead uses the World Bank's open data). Rather than a single snapshot, the goal is to make it easy to see how these numbers move over time: which causes of death are rising or falling, how birth counts compare across recent years, and what that means for population growth overall.

This is an independent, non-commercial project. It is not affiliated with or endorsed by the CDC, and it requires no account or sign-in. The data is free to explore for anyone.

About the data

Source
CDC WONDER + data.cdc.gov, plus World Bank for the international comparison
Coverage
National (US); 1900–present depending on the series
Access
Free, open, no account required