Explore 109 Used 2021 Gmc Sierra Listings Near Boulder, CO
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2021 GMC Sierra 2WD Crew Cab Short Box SLT
43,023 mi.
278 days on market
3GTP8DED1MG150324
$40,000
Fair Deal
Jjs Auto Sales
Olive Branch, MS
Sponsored
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2021 GMC Sierra 2WD Crew Cab Short Box Elevation
127,950 mi.
7 days on market
3GTP8CED8MG153862
$25,999
Good Deal
Rams Motors Llc
San Antonio, TX
Sponsored
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
139,502 mi.
68 days on market
1GT49REY1MF157873
$46,990
Impex Auto Sales
Greensboro, NC
2021 GMC Sierra 4WD Crew Cab Short Box AT4
97,681 mi.
20 days on market
1GTP9EED2MZ256154
$38,052
Fair Deal
Skyline Mitsubishi
Denver, CO
4.3
2021 GMC Sierra Elevation 4WD Crew Cab Short Box
111,102 mi.
20 days on market
1GTU9CEDXMZ370135
$29,988
Good Deal
Johnson Auto Plaza
Brighton, CO
4.2
2021 GMC Sierra 4WD Crew Cab Standard Box AT4
48,642 mi.
21 days on market
1GT49PEY2MF208110
$49,500
Great Deal
Autosavvy Windsor
Windsor, CO
4.6
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
40,131 mi.
21 days on market
3GTU9CET5MG194909
$37,880
Fair Deal
Weld County Garage
Greeley, CO
4.6
2021 GMC Sierra 4WD Crew Cab Short Box Denali
57,503 mi.
22 days on market
3GTU9FEL6MG468961
$44,995
Fair Deal
Greenwood Automotive
Parker, CO
4.7
2021 GMC Sierra Elevation 4WD Crew Cab Short Box
94,786 mi.
22 days on market
3GTU9CED5MG345501
$32,320
Good Deal
Custom Cars West
Englewood, CO
4.6
2021 GMC Sierra 4WD Crew Cab Standard Box
174,028 mi.
23 days on market
1GT49LE74MF243683
$21,997
Good Deal
Nations Auto Inc
Denver, CO
4.4
2021 GMC Sierra 4WD Double Cab Standard Box Elevation
66,729 mi.
26 days on market
1GTR9CED7MZ304440
Contact Dealer
Single owner
Shortline Buick Gmc
Aurora, CO
4.0
2021 GMC Sierra 4WD Crew Cab Short Box AT4
67,269 mi.
27 days on market
3GTP9EED8MG194341
$40,397
Fair Deal
Castle Rock Ford
Castle Rock, CO
4.5
2021 GMC Sierra Denali 4WD Crew Cab Short Box
100,469 mi.
28 days on market
1GTU9FET0MZ186573
$41,999
Fair Deal
Janssen Gmc
North Platte, NE
4.4
2021 GMC Sierra 4WD Crew Cab Short Box AT4
109,071 mi.
28 days on market
1GTU9EET8MZ179378
$35,995
Good Deal
Discovery Auto Group
Grand Junction, CO
4.9
2021 GMC Sierra 4WD Crew Cab Short Box SLE
84,843 mi.
28 days on market
3GTU9BET6MG366049
$34,282
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2021 GMC Sierra 4WD Crew Cab Short Box Denali
75,699 mi.
29 days on market
3GTU9FEL9MG177418
$41,998
Fair Deal
Mike Maroone Auto
Longmont, CO
4.4
2021 GMC Sierra 4WD Crew Cab Short Box AT4
83,639 mi.
31 days on market
1GTP9EED3MZ353461
$37,392
Good Deal
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box Denali
46,291 mi.
31 days on market
1GTU9FEL5MZ253135
$45,386
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
94,121 mi.
31 days on market
3GTP9CEK4MG247393
$29,500
Good Deal
Stevinson Hyundai Of Longmont
Longmont, CO
4.7
2021 GMC Sierra 4WD Crew Cab Short Box Denali
99,120 mi.
32 days on market
3GTU9FET1MG463523
$35,250
Good Deal
Autonation Chrysler Jeep West
Golden, CO
4.5
2021 GMC Sierra 4WD Crew Cab Short Box Denali
31,688 mi.
33 days on market
1GTU9FEL8MZ243313
Contact Dealer
Single owner
Shortline Buick Gmc
Aurora, CO
4.0
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
90,199 mi.
34 days on market
1GT49WEY3MF142712
$55,000
Great DealClean title
Hm Brown Associates
Centennial, CO
4.8
2021 GMC Sierra 4WD Crew Cab Short Box SLE
176,206 mi.
35 days on market
3GTU9BED9MG133937
$21,995
Good Deal
Springs Auto Sales
Colorado Springs, CO
3.8
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
65,257 mi.
35 days on market
3GTU9CET3MG387723
$35,888
Fair Deal
Brandon Cdjr
Loveland, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box AT4
106,976 mi.
35 days on market
3GTU9EET3MG407268
$40,094
Fair Deal
Truck Ranch Frederick
Longmont, CO
5.0
2021 GMC Sierra Denali 4WD Crew Cab Standard Box
51,425 mi.
38 days on market
1GT19REYXMF290554
$58,945
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra SLE 4WD Double Cab Standard Box
87,466 mi.
39 days on market
1GT29ME70MF214212
$36,343
Good Deal
Auto Mart Usa Parker
Parker, CO
4.7
2021 GMC Sierra 4WD Crew Cab Short Box Denali
57,654 mi.
40 days on market
3GTU9FET6MG359366
$49,494
Fair Deal
Grand Valley Auto Grand Junction
Grand Junction, CO
4.6
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
33,481 mi.
40 days on market
1GT49WEY3MF122069
$62,619
Fair Deal
Northwest Auto Sales Service Gmc
Meeker, CO
4.4
2021 GMC Sierra SLE 4WD Crew Cab Short Box
65,200 mi.
42 days on market
1GTU9BEDXMZ375409
$31,995
Fair Deal
C R Motorsports
Grand Junction, CO
4.5
2021 GMC Sierra AT4 4WD Crew Cab Short Box
93,756 mi.
42 days on market
1GTP9EED3MZ186406
$35,991
Good Deal
Clearshift
Loveland, CO
4.8
Sponsored
2021 GMC Sierra 2WD Crew Cab Short Box SLT
43,023 mi.
278 days on market
3GTP8DED1MG150324
$40,000
Fair Deal
Jjs Auto Sales
Olive Branch, MS
2021 GMC Sierra 4WD Crew Cab Short Box AT4
97,681 mi.
20 days on market
1GTP9EED2MZ256154
$38,052
Fair Deal
Skyline Mitsubishi
Denver, CO
4.3
2021 GMC Sierra Elevation 4WD Crew Cab Short Box
111,102 mi.
20 days on market
1GTU9CEDXMZ370135
$29,988
Good Deal
Johnson Auto Plaza
Brighton, CO
4.2
2021 GMC Sierra 4WD Crew Cab Standard Box AT4
48,642 mi.
21 days on market
1GT49PEY2MF208110
$49,500
Great Deal
Autosavvy Windsor
Windsor, CO
4.6
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
40,131 mi.
21 days on market
3GTU9CET5MG194909
$37,880
Fair Deal
Weld County Garage
Greeley, CO
4.6
2021 GMC Sierra 4WD Crew Cab Short Box Denali
57,503 mi.
22 days on market
3GTU9FEL6MG468961
$44,995
Fair Deal
Greenwood Automotive
Parker, CO
4.7
2021 GMC Sierra Elevation 4WD Crew Cab Short Box
94,786 mi.
22 days on market
3GTU9CED5MG345501
$32,320
Good Deal
Custom Cars West
Englewood, CO
4.6
2021 GMC Sierra 4WD Crew Cab Standard Box
174,028 mi.
23 days on market
1GT49LE74MF243683
$21,997
Good Deal
Nations Auto Inc
Denver, CO
4.4
2021 GMC Sierra 4WD Double Cab Standard Box Elevation
66,729 mi.
26 days on market
1GTR9CED7MZ304440
Contact Dealer
Single owner
Shortline Buick Gmc
Aurora, CO
4.0
2021 GMC Sierra 4WD Crew Cab Short Box AT4
67,269 mi.
27 days on market
3GTP9EED8MG194341
$40,397
Fair Deal
Castle Rock Ford
Castle Rock, CO
4.5
2021 GMC Sierra Denali 4WD Crew Cab Short Box
100,469 mi.
28 days on market
1GTU9FET0MZ186573
$41,999
Fair Deal
Janssen Gmc
North Platte, NE
4.4
2021 GMC Sierra 4WD Crew Cab Short Box AT4
109,071 mi.
28 days on market
1GTU9EET8MZ179378
$35,995
Good Deal
Discovery Auto Group
Grand Junction, CO
4.9
2021 GMC Sierra 4WD Crew Cab Short Box SLE
84,843 mi.
28 days on market
3GTU9BET6MG366049
$34,282
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2021 GMC Sierra 4WD Crew Cab Short Box Denali
75,699 mi.
29 days on market
3GTU9FEL9MG177418
$41,998
Fair Deal
Mike Maroone Auto
Longmont, CO
4.4
2021 GMC Sierra 4WD Crew Cab Short Box AT4
83,639 mi.
31 days on market
1GTP9EED3MZ353461
$37,392
Good Deal
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box Denali
46,291 mi.
31 days on market
1GTU9FEL5MZ253135
$45,386
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
94,121 mi.
31 days on market
3GTP9CEK4MG247393
$29,500
Good Deal
Stevinson Hyundai Of Longmont
Longmont, CO
4.7
2021 GMC Sierra 4WD Crew Cab Short Box Denali
99,120 mi.
32 days on market
3GTU9FET1MG463523
$35,250
Good Deal
Autonation Chrysler Jeep West
Golden, CO
4.5
2021 GMC Sierra 4WD Crew Cab Short Box Denali
31,688 mi.
33 days on market
1GTU9FEL8MZ243313
Contact Dealer
Single owner
Shortline Buick Gmc
Aurora, CO
4.0
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
90,199 mi.
34 days on market
1GT49WEY3MF142712
$55,000
Great DealClean title
Hm Brown Associates
Centennial, CO
4.8
2021 GMC Sierra 4WD Crew Cab Short Box SLE
176,206 mi.
35 days on market
3GTU9BED9MG133937
$21,995
Good Deal
Springs Auto Sales
Colorado Springs, CO
3.8
2021 GMC Sierra 4WD Crew Cab Short Box Elevation
65,257 mi.
35 days on market
3GTU9CET3MG387723
$35,888
Fair Deal
Brandon Cdjr
Loveland, CO
4.3
2021 GMC Sierra 4WD Crew Cab Short Box AT4
106,976 mi.
35 days on market
3GTU9EET3MG407268
$40,094
Fair Deal
Truck Ranch Frederick
Longmont, CO
5.0
2021 GMC Sierra Denali 4WD Crew Cab Standard Box
51,425 mi.
38 days on market
1GT19REYXMF290554
$58,945
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2021 GMC Sierra SLE 4WD Double Cab Standard Box
87,466 mi.
39 days on market
1GT29ME70MF214212
$36,343
Good Deal
Auto Mart Usa Parker
Parker, CO
4.7
2021 GMC Sierra 4WD Crew Cab Short Box Denali
57,654 mi.
40 days on market
3GTU9FET6MG359366
$49,494
Fair Deal
Grand Valley Auto Grand Junction
Grand Junction, CO
4.6
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
33,481 mi.
40 days on market
1GT49WEY3MF122069
$62,619
Fair Deal
Northwest Auto Sales Service Gmc
Meeker, CO
4.4
2021 GMC Sierra SLE 4WD Crew Cab Short Box
65,200 mi.
42 days on market
1GTU9BEDXMZ375409
$31,995
Fair Deal
C R Motorsports
Grand Junction, CO
4.5
2021 GMC Sierra AT4 4WD Crew Cab Short Box
93,756 mi.
42 days on market
1GTP9EED3MZ186406
$35,991
Good Deal
Clearshift
Loveland, CO
4.8
Find Used GMC Sierra in Boulder, CO
In the U.S., the GMC Sierra is available as Chassis Cab, Pickup, and Utility-Service Truck. The best choice typically depends on space needs and personal preference.