2003 Mercury Grand Marquis prices in the U.S.
The median asking price for a 2003 Mercury Grand Marquis in the U.S. is $7,495 based on 20 active listings.
As of July 25, 2026, the median asking price for a 2003 Mercury Grand Marquis in the U.S. is $7,495, based on 20 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 20 active dealer listings, refreshed daily Methodology →
Typical: $4,912–$9,248 — the middle half of 20 asking prices
Why the wide range? 2003 Mercury Grand Marquis listings span two distinct versions: the GS (typically $4,120–$6,484) and the LS ($6,605–$11K). See price by trim. 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 2003 Mercury Grand Marquis
The $4,912–$9,248 typical range isn't randomness — two factors explain most of it:
The same car typically asks $3,304 in Illinois but $7,995 in Mississippi.
The GS typically asks $4,725, while the LS asks $8,633 — same year, same market.
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Modelled from 14 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2003 Mercury Grand Marquis: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| LS | 14 listings | $8,633 | $6,605–$11K | |
| GS | 6 listings | $4,725 | $4,120–$6,484 |
Based on a small number of listings per trim — medians are indicative, not definitive.
Price history
Median asking price by month · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2003 Mercury Grand Marquis is $6,648 (July 2026) — up 47.9% from $4,495 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $6,648 | $3,995–$9,996 | 20 |
| June 2026 | $6,248 | $4,762–$8,164 | 24 |
| May 2026 | $4,975 | $4,149–$7,538 | 20 |
| April 2026 | $7,245 | $3,800–$7,996 | 12 |
| March 2026 | $5,995 | $4,438–$7,985 | 31 |
| February 2026 | $5,797 | $4,900–$6,995 | 13 |
| January 2026 | $7,238 | $4,837–$8,675 | 10 |
| December 2025 | $6,295 | $5,485–$7,498 | 19 |
| November 2025 | $3,995 | $3,248–$6,788 | 15 |
| August 2025 | $4,495 | $2,999–$6,999 | 13 |
2003 Mercury Grand Marquis prices by state
| State | Typical price | Listed this year | Active now |
|---|---|---|---|
| Florida | $6,738 | 12 | 2 Shop 2002–2004 nearby → |
| Illinois | $3,304 | 10 | 1 Shop 2002–2004 nearby → |
| Ohio | $6,924 | 7 | 1 Shop 2002–2004 nearby → |
| Alabama | $5,549 | 5 | 2 Shop 2002–2004 nearby → |
| Missouri | $4,950 | 5 | 1 Shop 2002–2004 nearby → |
| Mississippi | $7,995 | 5 | 1 Shop 2002–2004 nearby → |
| Tennessee | $3,500 | 5 | 2 Shop 2002–2004 nearby → |
Listed this year counts every 2003 Mercury Grand Marquis first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
Keep exploring Grand Marquis prices
2003 Mercury Grand Marquis · $8,695 typical · 20 listingsOther Mercury Grand Marquis years
Frequently asked questions
Why do 2003 Mercury Grand Marquis prices range from $2,936 to $24,337?
The spread is two different cars sharing one name. 2003 Mercury Grand Marquis listings span two distinct versions: the GS (typically $4,120–$6,484) and the LS ($6,605–$11K). Within each version, mileage and options set where a specific car lands.
Is $8,695 a good price for a 2003 Mercury Grand Marquis?
$8,695 is the market average as of July 25, 2026. Anything meaningfully below the $7,495 median is priced to move — but always compare within the same trim and mileage band, since those two factors drive most of the spread.
How many 2003 Mercury Grand Marquis are for sale right now?
20 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 20 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 Grand Marquis →
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