Geoffrey Himes of The Washington Post described Welch as "one of the most interesting singer-songwriters of her generation".
In 2003, Tom Kielty of The Boston Globe observed that she was "quietly establishing one of the most impressive catalogs in contemporary roots music", and a 2007 piece in The Guardian by John Harris called Welch "one of the decade's greatest talents".
Critic Robert Hilburn of the Los Angeles Times wrote, "At every turn, she demonstrates a spark and commitment that should endear her to anyone from country and folk to pop and rock fans who appreciate imagination and heart."

When Welch's first two albums came out, critics questioned the authenticity of her music, as she was raised in Southern California, but performed Appalachian themed songs.
For Revival, Welch was criticized for "manufacturing emotion", and a review of Hell Among the Yearlings by Chris Herrington of City Pages stated, "Welch is someone who discovered old-time music in college and decided that her own sheltered life could never be worth writing about", and that she is "completely devoid of individuality".
Other critics rejected the notion that her background affects the authenticity of her music.
Music critic Mark Kemp defended Welch in a The New York Times piece:
The first-person protagonist of Ms. Welch's song ("Caleb Meyer") may be a young girl from a time and place that Ms. Welch will never fully understand, but the feelings the singer expresses about rape, and the respect she displays for her chosen musical genre, are nothing if not poignantly authentic.
Likewise, it matters not whether Ms. Welch has ever walked the streets of "the black dust towns of East Tennessee" about which she sings in "Miner's Refrain" because the sense of foreboding that she expresses for the men who once labored in coal mines with futile hopes of a better life comes through loud and clear.

The Wall Street Journal's Taylor Holliday echoed this: "Stingy critics give Ms. Welch a hard time because she's a California city girl, not an Appalachian coal miner's daughter.
But as Lucinda or Emmylou might attest, love of the music is not a birthright, but an earned right.
Listen to Ms. Welch yodel, in a tune about that no-good "gal" Morphine, and you know she's as mountain as they come."

On September 16, 2015 the duo was awarded the Lifetime Achievement Award for Songwriting by the Americana Music Association.
Geoffrey Himes of The Washington Post described Welch as "one of the most interesting singer-songwriters of her generation". In 2003, Tom Kielty of The Boston Globe observed that she was "quietly establishing one of the most impressive catalogs in contemporary roots music", and a 2007 piece in The Guardian by John Harris called Welch "one of the decade's greatest talents". Critic Robert Hilburn of the Los Angeles Times wrote, "At every turn, she demonstrates a spark and commitment that should endear her to anyone from country and folk to pop and rock fans who appreciate imagination and heart."
When Welch's first two albums came out, critics questioned the authenticity of her music, as she was raised in Southern California, but performed Appalachian themed songs. For Revival, Welch was criticized for "manufacturing emotion", and a review of Hell Among the Yearlings by Chris Herrington of City Pages stated, "Welch is someone who discovered old-time music in college and decided that her own sheltered life could never be worth writing about", and that she is "completely devoid of individuality". Other critics rejected the notion that her background affects the authenticity of her music. Music critic Mark Kemp defended Welch in a The New York Times piece:
The first-person protagonist of Ms. Welch's song ("Caleb Meyer") may be a young girl from a time and place that Ms. Welch will never fully understand, but the feelings the singer expresses about rape, and the respect she displays for her chosen musical genre, are nothing if not poignantly authentic. Likewise, it matters not whether Ms. Welch has ever walked the streets of "the black dust towns of East Tennessee" about which she sings in "Miner's Refrain" because the sense of foreboding that she expresses for the men who once labored in coal mines with futile hopes of a better life comes through loud and clear. 
The Wall Street Journal's Taylor Holliday echoed this: "Stingy critics give Ms. Welch a hard time because she's a California city girl, not an Appalachian coal miner's daughter. But as Lucinda or Emmylou might attest, love of the music is not a birthright, but an earned right. Listen to Ms. Welch yodel, in a tune about that no-good "gal" Morphine, and you know she's as mountain as they come." 
On September 16, 2015 the duo was awarded the Lifetime Achievement Award for Songwriting by the Americana Music Association.
Gillian Welch