Grain Valley, MO Housing Market 2026: Median Home Price, Last 12 Months

Grain Valley closes a lot of homes into a narrow band, which makes its median unusually informative: sales over the last 12 months land close together, so the citywide number is a real anchor rather than an average of extremes.

The snapshot

• •Closings tracked, last 12 months: 286
• •Median sold price, last 12 months: $339,900
• •Median sold $/sqft, last 12 months: $174
• •Middle half of sales closed between: $299,900 and $395,000

What the numbers say

Resideline tracked 286 closed sales in Grain Valley over the last 12 months, with a median closing price of $339,900. That median is the midpoint of what buyers actually paid, not what sellers hoped to get, which is why it moves differently from the asking prices you see on listing sites. The middle half of those sales closed between $299,900 and $395,000. That spread matters more than the headline median: where a specific property sits inside it decides whether the citywide number helps you or misleads you. These are the closings Resideline tracks and may differ from complete county or municipal records. 95% of the Grain Valley closings we track here are single-family houses, so these figures primarily reflect that segment, and the citywide $/sqft figure primarily reflects that segment as well. Across the 286 closings with usable living area, the middle half sold between $152 and $198 per square foot.

Figures last updated September 6, 2026 from closings Resideline tracked.

Median home price in Grain Valley, MO (September 2026)

The median home price in Grain Valley is $339,900, measured across the 286 closed sales Resideline tracked over the last 12 months. The middle half of those sales closed between $299,900 and $395,000.

Where Grain Valley sale prices land

Medians hide the shape of a market. The distribution above covers the closed sales Resideline tracked in Grain Valley over the last 12 months that carry a usable sale date, trimmed to the 5th through 95th percentile, with the middle half of sales closing between $299,900 and $395,000. Among the 42 Missouri markets with a published band, Grain Valley's middle-half spread ($299,900 to $395,000) ranks 2nd from the narrowest. Where your target property sits inside that spread matters more than the citywide median. Measured as the ratio of the upper to the lower quartile, its middle-half spread ranks in the 4th percentile of the 2,187 US markets in Resideline's national Market Watch set, on data as of September 4, 2026.

How long a sale takes here

• •Listed to under contract: a median of 12 days, across 208 Grain Valley closings Resideline tracked in the last 12 months
• •Contract to closing: a median of 31 days, across 191 Grain Valley closings Resideline tracked in the last 12 months

The Grain Valley angle

Both of Grain Valley's headline traits point one way for a quick estimate and the opposite way for a confident one. The band from $299,900 to $395,000 is tighter than most markets we track, which makes $339,900 a closer approximation for more properties. So a rough number is cheap here and a precise one is expensive. Compression means an anchor on the citywide midpoint is unlikely to be far off. Thin data means the midpoint itself rests on relatively few properties and may move as new closings arrive, and it means matched comps will be scarce enough that each one carries real weight. Filter tightly, count what you have, and widen on the least important attribute if you must. The wider stretch of the band sits above the midpoint, so an estimate built from larger or better finished comps will run high.

From market read to offer price

A tight market makes the next step easier: the citywide anchor sits close to most homes, and a report only has to explain the gap. The decision still comes down to one property and one number: what it is actually worth and what you should pay. Every Resideline report opens with this same market snapshot for the subject's exact ZIP code, then gives you the property's value, the sold comps behind it, and a market rent estimate. Pricing a specific deal? The free ARV calculator and rental property calculator run the numbers in about a minute.

And we show our work. Every estimate is frozen while the home is for sale, so it cannot be revised once the sale price is known. Grading it is a different matter in Missouri: because sale prices are not public record here, a confirmed closing price reaches us for only a small share of Missouri homes, and most Missouri estimates stay frozen and ungraded. The accuracy scoreboard is therefore a national record rather than a Missouri one. See the live accuracy dashboard for the receipts, or read how the Area Market Snapshot works.

Run any Grain Valley address through Resideline and you will see the local market and the property's value together, in one report.

Cite this

Using these numbers? Please cite the source and the sample size:

Source: Resideline Market Watch
Market: Grain Valley, MO
Geography: incorporated municipality, Census place 2928090
Data updated: September 2026
Analysis period: last 12 months
Tracked closings: 286
Median sold price: $339,900
Median sold $/sqft: $174 (286 qualifying)
Property mix: 95% houses
https://resideline.com/blog/grain-valley-mo-housing-market

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<a href="https://resideline.com/blog/grain-valley-mo-housing-market">
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<p>Source: <a href="https://resideline.com/blog/grain-valley-mo-housing-market">Resideline Market Watch</a></p>

The local market statistics in this report are calculated from closed sales tracked by Resideline. Transaction coverage may differ from complete county or municipal records.

Every local market figure on this page is computed from closed sales Resideline tracked in Grain Valley over the last 12 months, and is refreshed when the data is.