Did most federal prison inmates in Wisconsin and the U.S. enter the country illegally?

Most inmates in Wisconsin’s federal prison, and in federal prisons nationally, are U.S. citizens.

Following Trump administration arrests of immigrants suspected or convicted of crimes, Republican U.S. Rep. Derrick Van Orden of western Wisconsin claimed Jan. 27 that over 50% of inmates at the Federal Correctional Institution in Oxford, Wisconsin, are “illegal aliens.”

Oxford is a low-security prison 60 miles north of Madison that houses 1,100 male offenders.

As of Jan. 25, 59% of Oxford inmates, and 85% of federal inmates nationally, were U.S. citizens. The Federal Bureau of Prisons does not readily have data on what percentage of inmates are unauthorized immigrants.

Nationally:

U.S. citizens constituted two-thirds of recently federally sentenced individuals.

The most serious offense for 76% of noncitizens sentenced for a federal crime in recent years was immigration-related, such as unlawful U.S. entry or smuggling noncitizens (14% were drug-related).

Donald Trump’s administration has called unauthorized immigrants criminals, but being undocumented is a civil violation.