Produced in N.P.R. headquarters in Washington, D.C., and at N.P.R. West in Los Angeles.
It’s worth noting that, like public television stations, public radio stations do not program exclusively from one source. National Public Radio is the major source productions, but you also have Public Radio International (the former American Public Radio), and American Public Media (which is the production arm of Minnesota Public Radio). Several programs distributed by these networks are produced by others. For example, P.R.I. distributes B.B.C. radio programming. Some of N.P.R.'s programs are produced by Wisconsin Public Radio, the Canadian Broadcasting Co. and other organisations.
Many public radio shows are produced in Washington, D.C., Madison, Wis., Saint Paul, Minn., and New York, but there are plenty produced across the country –
“American Routes” is produced in New Orleans.
“Annoying Music Show,” “Wait Wait Don’t Tell Me,” “This American Life” - Chicago
“Been There/Done That,” “Justice Talking,” “Radio Times,” “World Cafe” - Philadelphia
“Brian Lehrer Show,” “On the Media,” “Radio Diaries,” “Studio 360” - New York
“Car Talk,” “The Connection,” “From the Top,” “Here and Now,” “The Infinite Mind,” “On Point,” “Only a Game,” “Says You,” “Sound and Spirit” - Boston
“Earth and Sky,” “Latino U.S.A.,” “Star Date” - Austin, Texas
“Echoes” - Chester Springs, Pa.
“Forum,” “Hearts of Space,” “Tech Nation” - San Francisco
“Jazz Set” - Newark, N.J.
“Living on Earth” - Somerville, Mass.
“Marian McPartland’s Piano Jazz” - Columbia, S.C.
“New Dimensions” - Ukiah, Calif.
“The Parents’ Journal” - Charleston, S.C.
“Pipedreams,” “A Prairie Home Companion” - Saint Paul, Minn.
“The Radio Reader” - East Lansing, Mich.
“Sunday Baroque” - Fairfield, Conn.
“Whadya Know?,” “To the Best of Our Knowledge” - Madison, Wis.
“To the Point” - Santa Monica, Calif.
“The Thistle and Shamrock” - Matthews, N.C.
Having said all this, I don’t think it’s at all relevant to the question of “bias.” People of all stripes live everyhwere in this country.