On November 22, 2013, the Angels traded Bourjos and Randal Grichuk to the St. Louis Cardinals for third baseman David Freese and relief pitcher Fernando Salas.
With the previous season's starting center fielder Jon Jay producing a decline in offensive performance and below average defense, acquiring Bourjos allowed the Cardinals to offset some defensive inconsistency.
On January 17, 2014, Bourjos and the Cardinals avoided arbitration by agreeing to a one-year, $1.2 million contract, with a plate appearance-based performance incentive worth $150,000.

Bourjos' first three-hit game for the Cardinals occurred on May 7, 2014, against the Atlanta Braves.
He also hit his second home run of the season as the Cardinals prevailed, 7–1.
During a May 29 game against the San Francisco Giants, he advanced from first base to third on pitcher Jaime García's sacrifice bunt.
The Giants had optioned for an infield shift, leaving third base without a stationed fielder.
The play also occurred without the benefit of an error.
Bourjos' first home run at Busch Stadium gave the Cardinals the go-ahead run against the Kansas City Royals on June 4.
Bourjos' fourth home run of the season came in the ninth inning against the Baltimore Orioles' Zach Britton on August 10, to opposite field over the right field scoreboard in Oriole Park at Camden Yards.

Playing in 119 games, Bourjos batted .231 with a .294 on base percentage in 2014.
A slow start to the season caused him to lose playing time to Jay.
Bourjos made his first career playoff appearance against the Los Angeles Dodgers in the National League Division Series (NLDS) and the Giants in the National League Championship Series (NLCS), playing in five games and batting twice.
The Giants eliminated the Cardinals from postseason play.
On October 21, 2014, Bourjos had surgery to repair hip impingement.
He stated that it had affected his swing, contributing to lower offensive production, including his batting average.

Bourjos and the Cardinals avoided arbitration for the second consecutive season by agreeing to a one-year, $1.65 million contract, on January 15, 2015.
He began the season as the fourth outfielder, with most of the playing time in center field going to Jay.
His speed impacted both offense and defense in the April 29 win against the Philadelphia Phillies.
He collected two hits, including an RBI triple, and covered long range to snare Chase Utley's fly ball at the warning track.
On November 22, 2013, the Angels traded Bourjos and Randal Grichuk to the St. Louis Cardinals for third baseman David Freese and relief pitcher Fernando Salas. With the previous season's starting center fielder Jon Jay producing a decline in offensive performance and below average defense, acquiring Bourjos allowed the Cardinals to offset some defensive inconsistency. On January 17, 2014, Bourjos and the Cardinals avoided arbitration by agreeing to a one-year, $1.2 million contract, with a plate appearance-based performance incentive worth $150,000.
Bourjos' first three-hit game for the Cardinals occurred on May 7, 2014, against the Atlanta Braves. He also hit his second home run of the season as the Cardinals prevailed, 7–1. During a May 29 game against the San Francisco Giants, he advanced from first base to third on pitcher Jaime García's sacrifice bunt. The Giants had optioned for an infield shift, leaving third base without a stationed fielder. The play also occurred without the benefit of an error. Bourjos' first home run at Busch Stadium gave the Cardinals the go-ahead run against the Kansas City Royals on June 4. Bourjos' fourth home run of the season came in the ninth inning against the Baltimore Orioles' Zach Britton on August 10, to opposite field over the right field scoreboard in Oriole Park at Camden Yards.
Playing in 119 games, Bourjos batted .231 with a .294 on base percentage in 2014. A slow start to the season caused him to lose playing time to Jay. Bourjos made his first career playoff appearance against the Los Angeles Dodgers in the National League Division Series (NLDS) and the Giants in the National League Championship Series (NLCS), playing in five games and batting twice. The Giants eliminated the Cardinals from postseason play. On October 21, 2014, Bourjos had surgery to repair hip impingement. He stated that it had affected his swing, contributing to lower offensive production, including his batting average.
Bourjos and the Cardinals avoided arbitration for the second consecutive season by agreeing to a one-year, $1.65 million contract, on January 15, 2015. He began the season as the fourth outfielder, with most of the playing time in center field going to Jay. His speed impacted both offense and defense in the April 29 win against the Philadelphia Phillies. He collected two hits, including an RBI triple, and covered long range to snare Chase Utley's fly ball at the warning track.
Peter Bourjos