Vehicle Details
2021 GMC Sierra 1500
AT4
Greencastle, PA 17225
Market price position
$37,989 · within market range
- Regional range
- $36,343 – $49,995
- vs. market
- $1,646 above low · $12,006 below high
- Comparable vehicles
- 13
Market Breakdown
Dealer Info
Greencastle, PA
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About This 2021 GMC Sierra 1500
Listing updated: Apr 20, 2026This used 2021 GMC Sierra 1500 AT4 is listed at $37,989 by a dealer in Greencastle, PA 17225. It has 71,591 miles on the odometer. The exterior color is White. It features a 4WD drivetrain with a 6.2L V8 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 13 similar vehicles in the Greencastle market, the estimated market range is $36,343 to $49,995.
This vehicle has been on the lot for 170 days.
Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).
2021 GMC Sierra 1500 Market in PA
Comparable Vehicles
1,730
Average Price
$38,975
Median Price
$38,497
Avg Days on Lot
48
Based on 1,730 comparable 2019-2023 GMC Sierra 1500 listings in PA, the average asking price is $38,975 and the median is $38,497. This listing at $37,989 is $986 below average (3% below market). Comparable prices in PA range from $17,700 to $65,482. Similar vehicles spend an average of 48 days on dealer lots in this market.
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2019 GMC Sierra 1500
Hollidaysburg, PA
2019 GMC Sierra 1500
Huntingdon, PA
2020 GMC Sierra 1500
Washington, PA
2020 GMC Sierra 1500
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