Ages of condemned prisoners

Executions in the United States from 1608 to 2004

Executions in the United States from 1930 to 2004

Total number of prisoners on Death Row in the United States from 1953 to 2003

Since 1642 (in the 13 colonies, the United States under the Articles of Confederation, and the current United States) an estimated 364 juvenile offenders have been put to death by states and the federal government. The first known juvenile to be executed was Thomas Graunger in 1642. Twenty-two of the executions occurred after 1976, in seven states. Due to the slow process of appeals, it was highly unusual for a condemned person to be under 18 at the time of execution. The youngest person to be executed in the 20th century was George Stinney, at the age of 14, in 1944. The last execution of a juvenile may have been Leonard Shockley, executed on April 10, 1959 at the age of 17. No one has been under age 19 at time of execution since at least 1964. Since the reinstatement of the death penalty in 1976, 22 people have been executed for crimes committed under the age of 18. 21 were 17 at the time of the crime; one, Sean Sellers, executed on February 4, 1999 in Oklahoma, was 16. The last person to be executed for a crime committed as a juvenile was Scott Allen Hain on April 3, 2003 in Oklahoma.

Before 2005, of the 38 U.S. states that allow capital punishment:

• 19 states and the federal government had set a minimum age of 18,
• Five states had set a minimum age of 17, and
• 14 states had explicitly set a minimum age of 16, or were subject to the Supreme Court's imposition of that minimum.

16 was held to be the minimum permissible age in the 1988 Supreme Court of the United States decision of Thompson v. Oklahoma. The Supreme Court, considering the case Roper v. Simmons, in March 2005, found execution of juvenile offenders unconstitutional by a 5–4 margin, effectively raising the minimum permissible age to 18. State laws have not been updated to conform with this decision. Under the US system, unconstitutional laws do not need to be repealed, but are instead held to be unenforceable. (See also List of juvenile offenders executed in the United States)

Distribution of sentences

Within the context of the overall murder rate, the death penalty cannot be said to be widely or routinely used in the United States; in recent years the average has been about one execution for about every 700 murders committed, or 1 execution for about every 325 murder convictions.

It is noted that the death penalty is sought and applied more often in some jurisdictions, not only between states but within states. A 2004 Cornell University study showed that while 2.5% of murderers convicted nationwide were sentenced to the death penalty, in Nevada 6% were given the death penalty. Texas gave 28% of murderers the death sentence, less than the national average. Texas, however, executed 40% of those sentenced, which was about four times higher than the national average. California had executed only 1% of those sentenced.

Only 1.4% of those executed since 1976 have been women.

African Americans made up 41% of death row inmates while making up only 12% of the general population. (They have made up 34% of those actually executed since 1976.) Conversely, others note that this is lower than the 50% of the total prison population which was African American and that whites are in fact twice as likely as African Americans to receive the death penalty, and are also executed more quickly after sentencing. Academic studies indicate that the single greatest predictor of whether a death sentence is given, however, is not the race of the defendant, but the race of the victim. According to a 2003 Amnesty International report, blacks and whites were the victims of murder in almost equal numbers, yet 80% of the people executed since 1977 were convicted of murders involving white victims.

There are notable exceptions however, as half of the ten inmates on Connecticut's death row have been condemned for the murders of minorities and five of the 37 inmates executed in South Carolina were white men convicted of murdering African-Americans.