2020 Toyota Sienna prices in Montana
The median asking price for a 2020 Toyota Sienna in Montana is $23,345 based on 5 active listings.
As of July 26, 2026, the median asking price for a 2020 Toyota Sienna in Montana is $23,345, based on 5 active dealer listings tracked by VinAssessment.
◷ Updated July 26, 2026 ▤ 5 active dealer listings, refreshed daily Methodology →
Typical: $18,198–$23,345 — the middle half of 5 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2020 Toyota Sienna
The $18,198–$23,345 typical range isn't randomness — one factor explains most of it:
Asking prices run about $42,392 under 15K miles and fall to $21,987 over 105K miles — roughly $1,900 for every 10,000 miles.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 5 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2020 Toyota Sienna: a fair price for your mileage
A 2020 Toyota Sienna sheds roughly $1,900 for every 10,000 miles. Find your mileage below.
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| Under 15K miles | 8 listings | $42,392 | $38K–$47K |
| 15K–30K miles | 15 listings | $39,900 | $33K–$48K |
| 30K–45K miles | 43 listings | $34,598 | $33K–$38K |
| 45K–60K miles | 51 listings | $32,490 | $29K–$36K |
| 60K–75K miles | 62 listings | $31,161 | $28K–$34K |
| 75K–90K miles | 53 listings | $29,075 | $25K–$30K |
| 90K–105K miles | 62 listings | $26,999 | $25K–$29K |
| Over 105K miles | 151 listings | $21,987 | $19K–$24K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Montana prices track it closely.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2020 Toyota Sienna is $28,980 (July 2026) — down 3.4% from $29,998 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $28,980 | $24K–$33K | 477 |
| June 2026 | $28,216 | $25K–$32K | 513 |
| May 2026 | $27,775 | $23K–$32K | 481 |
| April 2026 | $28,490 | $24K–$33K | 436 |
| March 2026 | $27,999 | $24K–$32K | 543 |
| February 2026 | $27,991 | $24K–$32K | 561 |
| January 2026 | $27,472 | $24K–$31K | 515 |
| December 2025 | $27,900 | $24K–$32K | 415 |
| November 2025 | $28,322 | $24K–$33K | 314 |
| October 2025 | $29,253 | $26K–$34K | 275 |
| September 2025 | $29,768 | $26K–$33K | 288 |
| August 2025 | $29,998 | $27K–$35K | 268 |
2020 Toyota Sienna inventory across the U.S.
Keep exploring Sienna prices
2020 Toyota Sienna · $21,418 typical · 5 listingsOther Toyota Sienna years
Live 2020 Toyota Sienna listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2019–2021 Toyota Sienna listings on VehiSales →.
More 2020 Toyota prices
Frequently asked questions
Why do 2020 Toyota Sienna prices range from $13,645 to $28,504 in Montana?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $18,198 and $23,345 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2020 Toyota Sienna?
Expect roughly $1,900 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $5,700 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Toyota Sienna prices in Montana differ from the rest of the country?
Yes. The average in Montana is $21,418, which is $7,194 below the national average of $28,612. Local supply, demand and transport costs all play a part.
How many 2020 Toyota Sienna are for sale in Montana right now?
5 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 5 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? See the factory window sticker for this Sienna →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.