1,290 Used Gmc Sierra for Sale Near Thornton, CO
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Sponsored
2018 GMC Sierra 2WD Regular Cab Long Box
142,168 mi.
11 days on market
1GT01REG3JZ333166
$15,990
Jz Auto Sales
Summit, IL
Sponsored New listing
2014 GMC Sierra 2WD Crew Cab 8ft SLT DRW
101,164 mi.
1 day on market
1GT414E80EF162316
$38,888
Peters Automall
High Point, NC
Sponsored
2020 GMC Sierra 4WD Regular Cab Long Box
105,116 mi.
64 days on market
3GTN9AEFXLG110844
$19,999
Dotcom Auto
Leesburg, VA
2022 GMC Sierra Denali 4WD Crew Cab Standard Box SRW
38,574 mi.
25 days on market
1GT49WEY1NF353828
$63,951
Fair Deal
Clearshift
Loveland, CO
4.8
2024 GMC Sierra Elevation 4WD Crew Cab Short Box
44,274 mi.
25 days on market
1GTUUCED8RZ244877
$47,986
Good Deal
Clearshift Loveland
Loveland, CO
4.8
2017 GMC Sierra 4WD Crew Cab Short Box
103,036 mi.
25 days on market
3GTU2PEJ8HG206518
$27,995
Fair Deal
Unied Automotive
Denver, CO
4.2
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
27,734 mi.
25 days on market
1GT49PEY0RF452801
$74,458
Fair DealSingle owner
Alpine Chevrolet
Aurora, CO
4.5
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
43,866 mi.
25 days on market
1GT49PEY6RF120281
$73,499
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2018 GMC Sierra 4WD Crew Cab Standard Box Denali
133,940 mi.
25 days on market
1GT12UEY2JF213177
$41,984
Good Deal
Drive N Motion Greeley
Greeley, CO
4.4
2024 GMC Sierra 4WD Crew Cab Long Box Denali Ultimate
52,277 mi.
25 days on market
1GT49XEY9RF109677
$82,629
Fair DealClean title
Halladay Nissan
Cheyenne, WY
4.4
2024 GMC Sierra AT4 4WD Crew Cab Short Box
34,815 mi.
25 days on market
1GTUUEEL8RZ271662
$56,190
Fair Deal
Omeara Gmc
Denver, CO
4.2
2019 GMC Sierra SLE 4x4 Crew Cab Short Box
100,378 mi.
25 days on market
1GTU9BEDXKZ376752
$25,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2024 GMC Sierra Elevation 4WD Crew Cab Short Box
32,998 mi.
25 days on market
1GTUUCED6RZ176949
$47,771
Good Deal
Clearshift
Loveland, CO
4.8
2024 GMC Sierra 4WD Crew Cab Short Box AT4
79,227 mi.
25 days on market
1GTUUEEL5RZ250283
$48,998
Good Deal
Mike Maroone Auto
Longmont, CO
4.4
2009 GMC Sierra 4WD Hybrid Crew Cab 3HA
66,016 mi.
25 days on market
2GTFK135191127861
$16,198
Fair Deal
Bob Penkhus Volkswagen
Colorado Springs, CO
4.1
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
12,898 mi.
25 days on market
1GT49PEY5RF419907
$74,989
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2022 GMC Sierra Denali 4WD Crew Cab Standard Box SRW
118,537 mi.
25 days on market
1GT49WEY5NF139036
$51,995
Good Deal
Unied Automotive
Denver, CO
4.2
2026 GMC Sierra 4WD Crew Cab Short Box AT4
2,823 mi.
25 days on market
1GTUUEE80TZ130569
Contact Dealer
Panhandle Automotive Group Llc
Sidney, NE
4.5
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
60,244 mi.
25 days on market
1GT19REY3MF239798
$57,988
Fair DealSingle owner
Alpine Chevrolet
Aurora, CO
4.5
2022 GMC Sierra 4WD Crew Cab Short Box SLE
129,225 mi.
25 days on market
3GTUUBED7NG676803
Contact Dealer
Weld County Garage
Greeley, CO
4.6
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
30,564 mi.
25 days on market
1GT49VEY4RF436296
$74,990
Fair DealSingle owner
Loveland Buick Gmc
Loveland, CO
4.4
2024 GMC Sierra 4WD Crew Cab Short Box AT4
64,149 mi.
25 days on market
1GTUUEEL9RZ305687
Contact Dealer
J R Car And Truck Center
Scott City, KS
4.4
2023 GMC Sierra Denali 4WD Crew Cab Short Box
26,034 mi.
25 days on market
1GTUUGEL0PZ254492
$56,387
Fair Deal
Omeara Gmc
Denver, CO
4.2
2024 GMC Sierra Denali Ultimate 4WD Crew Cab Long Box SR
19,177 mi.
25 days on market
1GT49YEY1RF423359
$81,087
Fair Deal
Omeara Gmc
Denver, CO
4.2
2023 GMC Sierra AT4 4WD Crew Cab Short Box
70,889 mi.
25 days on market
1GTUUEEL0PZ200114
$44,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2013 GMC Sierra 4WD Extended Cab 8ft SLE
143,648 mi.
26 days on market
1GT220CG5DZ172344
$19,499
Fair Deal
Summit Cruise Motors
Denver, CO
5.0
2026 GMC Sierra 4WD Crew Cab Std Box Elevation 3VL
4,000 mi.
26 days on market
1GTPUJEK4TZ108186
$52,488
Fair Deal
Turner Toyota
Montrose, CO
4.7
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
45,853 mi.
26 days on market
1GT49VEY0RF232210
$71,198
Fair Deal
Mike Maroone Auto
Longmont, CO
4.4
2024 GMC Sierra 4WD Crew Cab Short Box Denali Ultimate
36,880 mi.
26 days on market
1GTUUHE87RZ315471
$64,995
Fair Deal
The Faricy Boys Automotive
Salida, CO
4.4
2023 GMC Sierra 4WD Crew Cab Short Box SLT
50,868 mi.
26 days on market
3GTUUDED2PG292099
$47,629
Fair DealSingle ownerClean title
Halladay Buick Gmc
Cheyenne, WY
3.7
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
49,326 mi.
26 days on market
1GT49VEY2RF111484
$72,872
Fair DealClean title
Prestige Chrysler Dodge Jeep Ram
Longmont, CO
4.3
Sponsored
2018 GMC Sierra 2WD Regular Cab Long Box
142,168 mi.
11 days on market
1GT01REG3JZ333166
$15,990
Jz Auto Sales
Summit, IL
2022 GMC Sierra Denali 4WD Crew Cab Standard Box SRW
38,574 mi.
25 days on market
1GT49WEY1NF353828
$63,951
Fair Deal
Clearshift
Loveland, CO
4.8
2024 GMC Sierra Elevation 4WD Crew Cab Short Box
44,274 mi.
25 days on market
1GTUUCED8RZ244877
$47,986
Good Deal
Clearshift Loveland
Loveland, CO
4.8
2017 GMC Sierra 4WD Crew Cab Short Box
103,036 mi.
25 days on market
3GTU2PEJ8HG206518
$27,995
Fair Deal
Unied Automotive
Denver, CO
4.2
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
27,734 mi.
25 days on market
1GT49PEY0RF452801
$74,458
Fair DealSingle owner
Alpine Chevrolet
Aurora, CO
4.5
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
43,866 mi.
25 days on market
1GT49PEY6RF120281
$73,499
Fair Deal
Phil Long Ford Of Chapel Hills
Colorado Springs, CO
4.2
2018 GMC Sierra 4WD Crew Cab Standard Box Denali
133,940 mi.
25 days on market
1GT12UEY2JF213177
$41,984
Good Deal
Drive N Motion Greeley
Greeley, CO
4.4
2024 GMC Sierra 4WD Crew Cab Long Box Denali Ultimate
52,277 mi.
25 days on market
1GT49XEY9RF109677
$82,629
Fair DealClean title
Halladay Nissan
Cheyenne, WY
4.4
2024 GMC Sierra AT4 4WD Crew Cab Short Box
34,815 mi.
25 days on market
1GTUUEEL8RZ271662
$56,190
Fair Deal
Omeara Gmc
Denver, CO
4.2
2019 GMC Sierra SLE 4x4 Crew Cab Short Box
100,378 mi.
25 days on market
1GTU9BEDXKZ376752
$25,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2024 GMC Sierra Elevation 4WD Crew Cab Short Box
32,998 mi.
25 days on market
1GTUUCED6RZ176949
$47,771
Good Deal
Clearshift
Loveland, CO
4.8
2024 GMC Sierra 4WD Crew Cab Short Box AT4
79,227 mi.
25 days on market
1GTUUEEL5RZ250283
$48,998
Good Deal
Mike Maroone Auto
Longmont, CO
4.4
2009 GMC Sierra 4WD Hybrid Crew Cab 3HA
66,016 mi.
25 days on market
2GTFK135191127861
$16,198
Fair Deal
Bob Penkhus Volkswagen
Colorado Springs, CO
4.1
2024 GMC Sierra AT4 4WD Crew Cab Standard Box
12,898 mi.
25 days on market
1GT49PEY5RF419907
$74,989
Fair DealSingle owner
Alpine Buick Gmc
Highlands Ranch, CO
4.3
2022 GMC Sierra Denali 4WD Crew Cab Standard Box SRW
118,537 mi.
25 days on market
1GT49WEY5NF139036
$51,995
Good Deal
Unied Automotive
Denver, CO
4.2
2026 GMC Sierra 4WD Crew Cab Short Box AT4
2,823 mi.
25 days on market
1GTUUEE80TZ130569
Contact Dealer
Panhandle Automotive Group Llc
Sidney, NE
4.5
2021 GMC Sierra 4WD Crew Cab Standard Box Denali
60,244 mi.
25 days on market
1GT19REY3MF239798
$57,988
Fair DealSingle owner
Alpine Chevrolet
Aurora, CO
4.5
2022 GMC Sierra 4WD Crew Cab Short Box SLE
129,225 mi.
25 days on market
3GTUUBED7NG676803
Contact Dealer
Weld County Garage
Greeley, CO
4.6
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
30,564 mi.
25 days on market
1GT49VEY4RF436296
$74,990
Fair DealSingle owner
Loveland Buick Gmc
Loveland, CO
4.4
2024 GMC Sierra 4WD Crew Cab Short Box AT4
64,149 mi.
25 days on market
1GTUUEEL9RZ305687
Contact Dealer
J R Car And Truck Center
Scott City, KS
4.4
2023 GMC Sierra Denali 4WD Crew Cab Short Box
26,034 mi.
25 days on market
1GTUUGEL0PZ254492
$56,387
Fair Deal
Omeara Gmc
Denver, CO
4.2
2024 GMC Sierra Denali Ultimate 4WD Crew Cab Long Box SR
19,177 mi.
25 days on market
1GT49YEY1RF423359
$81,087
Fair Deal
Omeara Gmc
Denver, CO
4.2
2023 GMC Sierra AT4 4WD Crew Cab Short Box
70,889 mi.
25 days on market
1GTUUEEL0PZ200114
$44,998
Good Deal
Berkenkotter Motors
Castle Rock, CO
4.1
2013 GMC Sierra 4WD Extended Cab 8ft SLE
143,648 mi.
26 days on market
1GT220CG5DZ172344
$19,499
Fair Deal
Summit Cruise Motors
Denver, CO
5.0
2026 GMC Sierra 4WD Crew Cab Std Box Elevation 3VL
4,000 mi.
26 days on market
1GTPUJEK4TZ108186
$52,488
Fair Deal
Turner Toyota
Montrose, CO
4.7
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
45,853 mi.
26 days on market
1GT49VEY0RF232210
$71,198
Fair Deal
Mike Maroone Auto
Longmont, CO
4.4
2024 GMC Sierra 4WD Crew Cab Short Box Denali Ultimate
36,880 mi.
26 days on market
1GTUUHE87RZ315471
$64,995
Fair Deal
The Faricy Boys Automotive
Salida, CO
4.4
2023 GMC Sierra 4WD Crew Cab Short Box SLT
50,868 mi.
26 days on market
3GTUUDED2PG292099
$47,629
Fair DealSingle ownerClean title
Halladay Buick Gmc
Cheyenne, WY
3.7
2024 GMC Sierra 4WD Crew Cab Standard Box AT4
49,326 mi.
26 days on market
1GT49VEY2RF111484
$72,872
Fair DealClean title
Prestige Chrysler Dodge Jeep Ram
Longmont, CO
4.3
Find Used GMC Sierra in Thornton, 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.