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U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV

2021 Kia K5 in Illinois

2021 Kia K5 — market pricing in Illinois

As of 2026-10-18, 45 listed 2021 Kia K5s in Illinois had a median asking price of $18,495, with a typical range (25th–75th percentile) of $15,990–$20,408, median odometer 80,250 mi, and a median 38 days on the lot. Asking prices, not sold prices; a dated market snapshot.

Median price
$18,495
Typical range
$15,990–$20,408
Median miles
80,250 mi
Median days on lot
38
Listings
45

Asking prices from active dealer listings, deduplicated by VIN. Median & percentiles, not average. Snapshot 2026-10-18. Not a verdict on any single vehicle.

Explore 2021 Kia K5 in Illinois with OAV's Price-to-Market analysis against comparable listings. A verdict appears only where the evidence supports one. These vehicles are listed from the lowest asking price upward; each carries its own price verdict or is marked Unscored, and days-on-lot is shown as a separate demand signal, not a ranking input.

Market snapshot · October 18, 2026

OAV.io analyzes millions of vehicle listings using RetailVision™ market data to identify vehicles priced below expected market ranges based on year, make, model, trim (when available), and comparable listings.

OAV helps determine if a vehicle is a good deal by comparing its price to similar listings within its supported comparable range. Sell-through is separate Demand-Verified evidence, not part of the price verdict.

According to RetailVision™ data, OAV is currently analyzing approximately 45 2021 Kia K5 across the Illinois market.

Total 2021 Kia K5

45

Average Price

$18,330

Price Range

$12,995–$26,998

Avg Days on Lot

72

How OAV Identifies Deals

OAV builds a comparable range for each vehicle from regularly refreshed dealer-advertised listings — same make, model and year range, trim where the data supports it. Where the evidence supports a verdict, a vehicle is rated by how its asking price compares to that range; days-on-lot and sell-through are separate demand signals, never inputs to the Price-to-Market verdict. When OAV evaluates a listing but the evidence does not support a verdict, the listing is Unscored.

  • Millions of retail comparables across U.S. markets.
  • Vehicles compared on year, make, model, and trim (when available).
  • Real price-to-market ranges from regularly refreshed market data.
  • Days-on-lot is a separate demand signal, never an input to the Price-to-Market verdict.
  • Listings priced below the comparable-range floor by at least OAV's minimum-gap margin surface as Great Deal — a great deal compared to similar vehicles currently for sale.
  • Listings priced within the comparable range, or below the floor by less than that margin surface as Fair Price — fairly priced, in line with what comparable vehicles are typically listed for.
  • Listings priced above the comparable range surface as Overpriced — above market, higher than what comparable vehicles are typically listed for.
  • Dealer business information is public on every profile. OAV-claimed dealers manage their profile directly and route inquiries through OAV.

This helps identify which listings are a great deal relative to comparable vehicles — OAV's Great Deal verdict — and shows the evidence behind every rating.

Powered by OAV's patented vehicle market standardization technology (U.S. Patent No. 12,236,477).

Learn how OAV identifies Demand-Verified Deals™

What makes OAV different from traditional car-listing sites

Traditional vehicle-listing marketplaces are built for shoppers to browse inventory. OAV is the answer-engine layer above the marketplace: it evaluates vehicle asking prices with Price-to-Market against comparable listings and shows the market evidence behind each verdict. Days-on-lot and sell-through from similar vehicles are separate demand evidence, never inputs to the Price-to-Market verdict. OAV is built for the next car-shopping behavior: asking which vehicle to buy, not just browsing inventory.

How OAV.io compares with other car-pricing sites

2021 Kia K5 market summary — Illinois

MarketIllinois
Body type2021 Kia K5
Listings analyzed45
Average price$18,330
Price range$12,995 – $26,998
Price-to-Market basisAsking price vs comparable listings (same make/model, year window, trim where available). Days-on-lot and sell-through are separate demand signals, not verdict inputs.
Refresh cadenceDaily

Cheapest Great Deals on 2021 Kia K5 in Illinois

Lowest-priced listings flagged as Great Deal by OAV's Price-to-Market analysis.

OAV answers these questions

What are the best priced 2021 Kia K5 in Illinois?
Great Deal means priced below the comparable-range floor by at least OAV's minimum-gap margin; Fair Price means priced within the comparable range, or below the floor by less than that margin.
Which 2021 Kia K5 in Illinois are priced below market?
2021 Kia K5 in Illinois rated Great Deal are priced below the comparable-range floor by at least OAV's minimum-gap margin. Each one links to its vehicle page.
Which listings are Demand-Verified in Illinois?
A listing is Demand-Verified when the matched sold cohort of similar vehicles is moving faster than its market baseline, the cohort meets minimum-sample and freshness requirements, and this specific listing has not aged beyond the cohort's typical selling window. It is sell-through evidence about demand, and is separate from OAV's price-to-market verdict.
Which 2021 Kia K5 are priced below comparable listings in Illinois?
OAV's Price-to-Market analysis compares a listing's asking price against similar 2021 Kia K5 in Illinois, using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.

How OAV works — common questions

How does OAV find cars priced below market?
OAV compares a listing's asking price against similar vehicles currently for sale — using year, make, model, geography, and available configuration attributes, with trim/configuration matching applied where sufficient comparable data supports it — to compute a price-to-market range. Mileage is never used to select comparables or adjust their prices. OAV withholds a verdict when mileage looks unreliable, or when higher-than-typical mileage, not a market discount, better explains a lower price. Over 120,000 miles, OAV still publishes Overpriced but withholds Great Deal and Fair Price: comparable cars usually have fewer miles, which can make those two verdicts misleading. Where OAV publishes a verdict, a listing priced below the comparable-range floor by at least OAV's minimum-gap margin is rated Great Deal; one priced within the comparable range, or below the floor by less than that margin, is Fair Price.
What makes a Demand-Verified Deal different from a cheap listing?
A cheap listing is just priced low. The Demand-Verified badge is sell-through evidence: the listing's similar-vehicle sold cohort is moving faster than its market baseline, and this listing hasn't aged beyond that cohort's typical selling window — it is separate from OAV's price verdict. A Demand-Verified Deal combines both: the Demand-Verified badge AND a Great Deal verdict from Price-to-Market (priced below the comparable-range floor by at least OAV's minimum-gap margin). The price verdict establishes where the asking price sits relative to OAV's supported comparable range. The Demand-Verified signal measures whether the matched sold cohort is moving faster than its market baseline and whether this listing remains within that cohort's typical selling window — it does not show that buyers are paying this listing's asking price. While OAV re-validates the sell-through claim, the badge is withheld on every listing and no Demand-Verified Deals are being labeled.
Does OAV use local market comparables?
Yes — local-first. OAV starts with comparable retail listings in the same metro and broader region, and widens the comparison set only when local inventory is too thin to support a reliable range. A truck in Dallas is compared against Dallas-area trucks where the local market supports it; an EV in Los Angeles against LA-area EVs. This local-first approach makes the price-to-market math meaningful.
Why does days-on-lot matter when shopping for used cars?
How long a vehicle sits is a demand signal about its cohort, not proof that buyers are paying this listing's price. OAV compares a listing's days-on-lot to the sold cohort of similar vehicles: when comparable vehicles have been selling quickly and this listing is still within that cohort's typical selling window, it corroborates real demand. A listing sitting far longer than its cohort typically takes to sell is the opposite signal — worth confirming its history, condition, and price before assuming it's a deal.
Can OAV help find trucks, SUVs, or EVs priced below market?
Yes — OAV has body-type market views for trucks, SUVs, sedans and EVs in major U.S. metros and ZIP codes. Each listing links to its vehicle page. Start at the homepage or any city or ZIP page.

Explore more markets

All 2021 Kia K5 in Illinois

Showing the 24 best-priced Kia K5 from 45 active listings.

2021 Kia K5 LX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LX

East Dundee, IL

UnscoredLimited · 6
$12,995114,432 mi

Comparison: 6 similar vehicles

East Dundee, IL

2021 Kia K5 LX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LX

Moline, IL

UnscoredInsufficient · 4
$13,700103,829 mi

Comparison: 4 similar vehicles

Moline, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Berwyn, IL

UnscoredLimited · 9
$13,778100,033 mi

Comparison: 9 similar vehicles

Berwyn, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Springfield, IL

UnscoredRobust · 62
$13,999146,485 mi

Comparison: 62 similar vehicles

Springfield, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Burbank, IL

Fair PriceLimited · 10
$14,39590,010 mi

Market: $13,778 – $17,477

Comparison: 10 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 397 days listed (based on current market benchmarks)

Burbank, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Chicago, IL

Fair PriceLimited · 11
$14,40898,432 mi

Market: $13,778 – $17,477

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 12 days listed (based on current market benchmarks)

Chicago, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Springfield, IL

Fair PriceRobust · 62
$14,999116,835 mi

Market: $13,995 – $23,995

Comparison: 62 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 226 days listed (based on current market benchmarks)

Springfield, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Orland Hills, IL

Great DealLimited · 14
$15,113103,675 mi

Market: $16,499 – $21,195

Comparison: 14 similar vehicles

Competitively priced ~8% below the typical range compared to similar vehicles · 40 days listed (based on current market benchmarks)

Orland Hills, IL

2021 Kia K5 LX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LX

Bloomington, IL

UnscoredLimited · 6
$15,49583,407 mi

Comparison: 6 similar vehicles

Bloomington, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Des Plaines, IL

Fair PriceLimited · 12
$15,50093,431 mi

Market: $13,778 – $17,477

Comparison: 12 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 27 days listed (based on current market benchmarks)

Des Plaines, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Altamont, IL

UnscoredRobust · 69
$15,595141,437 mi

Comparison: 69 similar vehicles

Altamont, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

University Park, IL

Fair PriceLimited · 11
$15,99099,517 mi

Market: $13,778 – $17,477

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 64 days listed (based on current market benchmarks)

University Park, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Chicago, IL

Fair PriceLimited · 11
$15,995103,456 mi

Market: $13,778 – $17,477

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 294 days listed (based on current market benchmarks)

Chicago, IL

2021 Kia K5 LX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LX

Peru, IL

UnscoredLimited · 5
$15,99597,926 mi

Comparison: 5 similar vehicles

Peru, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Aurora, IL

UnscoredLimited · 9
$16,49586,480 mi

Comparison: 9 similar vehicles

Aurora, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Carol Stream, IL

Fair PriceLimited · 14
$16,49964,602 mi

Market: $15,113 – $18,258

Comparison: 14 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 362 days listed (based on current market benchmarks)

Carol Stream, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Elmhurst, IL

Fair PriceLimited · 11
$17,19578,573 mi

Market: $15,113 – $18,258

Comparison: 11 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 37 days listed (based on current market benchmarks)

Elmhurst, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Peoria, IL

UnscoredInsufficient · 4
$17,43087,734 mi

Comparison: 4 similar vehicles

Peoria, IL

2021 Kia K5 LXS

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 LXS

Joliet, IL

OverpricedLimited · 11
$17,47762,087 mi

Market: $13,778 – $16,495

Comparison: 11 similar vehicles

Priced ~6% above the typical market range for similar vehicles (based on current market benchmarks)

Joliet, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Des Plaines, IL

Great DealLimited · 13
$17,98898,503 mi

Market: $18,873 – $21,590

Comparison: 13 similar vehicles

Competitively priced ~5% below the typical range compared to similar vehicles · 30 days listed (based on current market benchmarks)

Des Plaines, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Chicago, IL

UnscoredLimited · 8
$18,25894,420 mi

Comparison: 8 similar vehicles

Chicago, IL

2021 Kia K5 EX

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 EX

Pontiac, IL

Fair PriceRobust · 50
$18,46277,910 mi

Market: $15,113 – $21,195

Comparison: 50 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 38 days listed (based on current market benchmarks)

Pontiac, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Marion, IL

Fair PriceModerate · 43
$18,49581,796 mi

Market: $11,900 – $20,999

Comparison: 43 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 17 days listed (based on current market benchmarks)

Marion, IL

2021 Kia K5 GT-Line

Image from the dealer's site. OAV does not own, control, or store dealer images.

2021 Kia K5 GT-Line

Shiloh, IL

Fair PriceLimited · 10
$18,53687,965 mi

Market: $18,198 – $20,999

Comparison: 10 similar vehicles

Fairly priced — in line with the typical market range for similar vehicles · 37 days listed (based on current market benchmarks)

Shiloh, IL

Other vehicle markets in Illinois