Used 2021 Kia K5 for Sale Nationwide

## Summary - With 1,919 currently listed for sale on CarGurus and an **average price of $18,597.00**, 35.6% of 2021 Kia K5s for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2021 Kia K5 4.65 / 5 stars. - **72.5% of 2021 K5 models on CarGurus are accident free**. - The 2021 Kia K5 introduced a stylish design and a variety of engine options, replacing the Optima with improved performance and a modern aesthetic. ## Why it stands out The 2021 Kia K5 distinguishes itself from its predecessor, the Optima, with a refreshing design and enhanced performance. One of its key attributes is the smooth driving experience afforded by the available 1.6L turbo engine, which offers a solid 180 horsepower and responsive acceleration. The sleek fastback shape, inspired by performance vehicles, and the modern interior layout with quality materials make it an appealing choice for buyers looking for both style and comfort. However, while many drivers appreciate its design and value for money, some have noted minor issues with the infotainment system and usability of certain features. Notably, the K5 offers multiple powertrain options and solid fuel efficiency, making it suitable for a range of driving needs. ## Other model years to consider - **[2022 Kia K5](https://www.cargurus.com/Cars/l-Used-2022-Kia-K5-c31450)** - Average price: $20,590.00 - Good/great deal percentage: 33.2% - User rating: 4.95 / 5 - Total listings: 3,031 - **[2023 Kia K5](https://www.cargurus.com/Cars/l-Used-2023-Kia-K5-c32416)** - Average price: $22,764.00 - Good/great deal percentage: 31.7% - User rating: 4.73 / 5 - Total listings: 2,818 - **[2024 Kia K5](https://www.cargurus.com/Cars/l-Used-2024-Kia-K5-c32992)** - Average price: $25,278.00 - Good/great deal percentage: 30.0% - User rating: 5 / 5 - Total listings: 3,216 This analysis is based on CarGurus' proprietary market data from February 20, 2026, CarGurus experts' opinions, and generative AI.