84 Used 2020 Gmc Sierra for Sale Near Boulder, CO
Save search
Sponsored
2020 GMC Sierra 4WD Crew Cab Short Box Denali
136,414 mi.
19 days on market
1GTU9FELXLZ184103
$29,995
Good Deal
Y H Auto Planet
Rensselaer, NY
Sponsored
2020 GMC Sierra 4WD Crew Cab Short Box AT4
47,678 mi.
81 days on market
1GTU9EET4LZ231295
$47,995
Fair Deal
Ti Automotive Llc
Ticonderoga, NY
Sponsored
2020 GMC Sierra 2WD Crew Cab Short Box Elevation
90,111 mi.
87 days on market
1GTP8CET9LZ257847
$25,395
Impex Auto Sales
Greensboro, NC
2020 GMC Sierra 4WD Crew Cab Short Box SLT
70,188 mi.
23 days on market
3GTU9DEDXLG403171
$40,198
Fair Deal
Super Auto Company Inc
Denver, CO
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
147,000 mi.
26 days on market
1GT49WEY7LF149094
$46,999
Good Deal
Team Chevrolet Gmc
Scottsbluff, NE
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
92,204 mi.
28 days on market
1GT49REYXLF303332
$51,298
Good DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2020 GMC Sierra Denali 4WD Crew Cab Standard Box
106,529 mi.
28 days on market
1GT19REY8LF321654
$49,995
Great DealClean title
Truck Kings
Denver, CO
4.2
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
43,002 mi.
31 days on market
1GT49REY6LF198594
$55,790
Fair Deal
Autonation Chrysler Jeep West
Golden, CO
4.5
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
55,226 mi.
31 days on market
1GT19PEY1LF120280
$57,989
Fair Deal
Fremont Cdjr Casper
Casper, WY
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
127,044 mi.
31 days on market
1GT49PE73LF294470
$42,398
Good Deal
Autonation Subaru Arapahoe
Centennial, CO
4.3
2020 GMC Sierra 4WD Crew Cab Short Box Denali
60,522 mi.
32 days on market
3GTU9FET7LG256813
$40,685
Fair Deal
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2020 GMC Sierra 4WD Crew Cab Short Box
71,208 mi.
32 days on market
3GTU9AEF1LG413958
$30,498
Fair Deal
Turner Chevrolet
Montrose, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box SLT
77,241 mi.
33 days on market
1GTU9DEL4LZ146306
$31,500
Great Deal
The Auto Outlet
Casper, WY
4.7
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
76,050 mi.
33 days on market
1GT49WEY1LF302732
$56,999
Fair Deal
Casper Gmc Cadillac
Casper, WY
4.6
2020 GMC Sierra 4WD Crew Cab Short Box SLT
42,865 mi.
34 days on market
3GTU9DED0LG331087
$41,250
Fair DealSingle owner
Sterling Auto Sales
Franktown, CO
4.1
2020 GMC Sierra Denali 4WD Crew Cab Short Box
77,874 mi.
35 days on market
1GTU9FELXLZ213065
$37,953
Good Deal
Sterling Auto Sales
Longmont, CO
4.1
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
134,979 mi.
36 days on market
1GT49PE72LF105579
$43,829
Good Deal
Castle Rock Ford
Castle Rock, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box SLT
73,777 mi.
37 days on market
3GTU9DET5LG378249
$34,999
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2020 GMC Sierra AT4 4WD Crew Cab Short Box
64,378 mi.
38 days on market
1GTP9EEL8LZ230499
$43,995
Fair Deal
Family Auto And Truck Center
Grand Junction, CO
4.6
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
133,048 mi.
38 days on market
1GT49WEY6LF163388
$41,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2020 GMC Sierra 4WD Crew Cab Short Box SLT
120,951 mi.
39 days on market
3GTU9DET6LG278158
Contact Dealer
Lions Auto Inc
Denver, CO
3.7
2020 GMC Sierra Elevation 4WD Crew Cab Short Box
109,145 mi.
40 days on market
1GTU9CET7LZ362693
$28,000
Good Deal
Sterling Auto Sales
Franktown, CO
4.1
2020 GMC Sierra 4WD Crew Cab Standard Box SLE
100,699 mi.
41 days on market
1GT49MEY5LF223083
$43,499
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
73,208 mi.
41 days on market
1GT49PEY8LF279830
$53,990
Fair Deal
Cool Rides
Monument, CO
3.7
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
33,103 mi.
41 days on market
1GT49PEY9LF287631
$63,999
Fair Deal
Autonation Toyota Arapahoe
Centennial, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box AT4
121,059 mi.
45 days on market
3GTP9EEL2LG122041
$35,995
Good Deal
Discovery Auto Group
Grand Junction, CO
4.9
2020 GMC Sierra 4WD Crew Cab Short Box Denali
146,384 mi.
46 days on market
3GTU9FED5LG332120
$30,984
Good Deal
Drive N Motion Greeley
Greeley, CO
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box
94,498 mi.
51 days on market
1GT49LE75LF267635
$29,697
Great Deal
Echopark Thornton
Thornton, CO
4.7
2020 GMC Sierra 4WD Crew Cab Short Box AT4
70,694 mi.
54 days on market
3GTP9EEL2LG349553
$40,970
Fair DealClean title
Quality Auto Of Casper
Casper, WY
4.9
2020 GMC Sierra 4WD Crew Cab Short Box Denali
68,010 mi.
55 days on market
1GTU9FEL0LZ220011
$41,590
Fair DealClean title
Vista Nissan
Casper, WY
4.6
2020 GMC Sierra 4WD Double Cab Long Box DRW
79,735 mi.
59 days on market
1GT59SE71LF265492
$39,122
Northwest Auto Sales Service Gmc
Meeker, CO
4.4
Sponsored
2020 GMC Sierra 4WD Crew Cab Short Box Denali
136,414 mi.
19 days on market
1GTU9FELXLZ184103
$29,995
Good Deal
Y H Auto Planet
Rensselaer, NY
2020 GMC Sierra 4WD Crew Cab Short Box SLT
70,188 mi.
23 days on market
3GTU9DEDXLG403171
$40,198
Fair Deal
Super Auto Company Inc
Denver, CO
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
147,000 mi.
26 days on market
1GT49WEY7LF149094
$46,999
Good Deal
Team Chevrolet Gmc
Scottsbluff, NE
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
92,204 mi.
28 days on market
1GT49REYXLF303332
$51,298
Good DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2020 GMC Sierra Denali 4WD Crew Cab Standard Box
106,529 mi.
28 days on market
1GT19REY8LF321654
$49,995
Great DealClean title
Truck Kings
Denver, CO
4.2
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
43,002 mi.
31 days on market
1GT49REY6LF198594
$55,790
Fair Deal
Autonation Chrysler Jeep West
Golden, CO
4.5
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
55,226 mi.
31 days on market
1GT19PEY1LF120280
$57,989
Fair Deal
Fremont Cdjr Casper
Casper, WY
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
127,044 mi.
31 days on market
1GT49PE73LF294470
$42,398
Good Deal
Autonation Subaru Arapahoe
Centennial, CO
4.3
2020 GMC Sierra 4WD Crew Cab Short Box Denali
60,522 mi.
32 days on market
3GTU9FET7LG256813
$40,685
Fair Deal
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2020 GMC Sierra 4WD Crew Cab Short Box
71,208 mi.
32 days on market
3GTU9AEF1LG413958
$30,498
Fair Deal
Turner Chevrolet
Montrose, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box SLT
77,241 mi.
33 days on market
1GTU9DEL4LZ146306
$31,500
Great Deal
The Auto Outlet
Casper, WY
4.7
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
76,050 mi.
33 days on market
1GT49WEY1LF302732
$56,999
Fair Deal
Casper Gmc Cadillac
Casper, WY
4.6
2020 GMC Sierra 4WD Crew Cab Short Box SLT
42,865 mi.
34 days on market
3GTU9DED0LG331087
$41,250
Fair DealSingle owner
Sterling Auto Sales
Franktown, CO
4.1
2020 GMC Sierra Denali 4WD Crew Cab Short Box
77,874 mi.
35 days on market
1GTU9FELXLZ213065
$37,953
Good Deal
Sterling Auto Sales
Longmont, CO
4.1
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
134,979 mi.
36 days on market
1GT49PE72LF105579
$43,829
Good Deal
Castle Rock Ford
Castle Rock, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box SLT
73,777 mi.
37 days on market
3GTU9DET5LG378249
$34,999
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2020 GMC Sierra AT4 4WD Crew Cab Short Box
64,378 mi.
38 days on market
1GTP9EEL8LZ230499
$43,995
Fair Deal
Family Auto And Truck Center
Grand Junction, CO
4.6
2020 GMC Sierra 4WD Crew Cab Standard Box Denali
133,048 mi.
38 days on market
1GT49WEY6LF163388
$41,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2020 GMC Sierra 4WD Crew Cab Short Box SLT
120,951 mi.
39 days on market
3GTU9DET6LG278158
Contact Dealer
Lions Auto Inc
Denver, CO
3.7
2020 GMC Sierra Elevation 4WD Crew Cab Short Box
109,145 mi.
40 days on market
1GTU9CET7LZ362693
$28,000
Good Deal
Sterling Auto Sales
Franktown, CO
4.1
2020 GMC Sierra 4WD Crew Cab Standard Box SLE
100,699 mi.
41 days on market
1GT49MEY5LF223083
$43,499
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
73,208 mi.
41 days on market
1GT49PEY8LF279830
$53,990
Fair Deal
Cool Rides
Monument, CO
3.7
2020 GMC Sierra 4WD Crew Cab Standard Box AT4
33,103 mi.
41 days on market
1GT49PEY9LF287631
$63,999
Fair Deal
Autonation Toyota Arapahoe
Centennial, CO
4.5
2020 GMC Sierra 4WD Crew Cab Short Box AT4
121,059 mi.
45 days on market
3GTP9EEL2LG122041
$35,995
Good Deal
Discovery Auto Group
Grand Junction, CO
4.9
2020 GMC Sierra 4WD Crew Cab Short Box Denali
146,384 mi.
46 days on market
3GTU9FED5LG332120
$30,984
Good Deal
Drive N Motion Greeley
Greeley, CO
4.4
2020 GMC Sierra 4WD Crew Cab Standard Box
94,498 mi.
51 days on market
1GT49LE75LF267635
$29,697
Great Deal
Echopark Thornton
Thornton, CO
4.7
2020 GMC Sierra 4WD Crew Cab Short Box AT4
70,694 mi.
54 days on market
3GTP9EEL2LG349553
$40,970
Fair DealClean title
Quality Auto Of Casper
Casper, WY
4.9
2020 GMC Sierra 4WD Crew Cab Short Box Denali
68,010 mi.
55 days on market
1GTU9FEL0LZ220011
$41,590
Fair DealClean title
Vista Nissan
Casper, WY
4.6
2020 GMC Sierra 4WD Double Cab Long Box DRW
79,735 mi.
59 days on market
1GT59SE71LF265492
$39,122
Northwest Auto Sales Service Gmc
Meeker, CO
4.4
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.