Decatur, IL Housing Market 2026: What Homes Actually Sell For

Decatur produces a steady stream of closings but little consensus: sales over the last six months span a range wide enough that the median is a midpoint between different markets, not a going rate. The distribution below matters more than the headline.

The snapshot

• •Closings tracked, last 6 months: 671
• •Median sold price, last 6 months: $109,000
• •Median sold $/sqft, last 6 months: $77
• •Middle half of sales closed between: $50,000 and $165,900

What the numbers say

Resideline tracked 671 closed sales in Decatur over the last six months, with a median closing price of $109,000. 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 $50,000 and $165,900. 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 Decatur 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 638 closings with usable living area, the middle half sold between $46 and $97 per square foot.

Figures last updated August 22, 2026 from closings Resideline tracked.

Median home price in Decatur, IL (August 2026)

The median home price in Decatur is $109,000, measured across the 671 closed sales Resideline tracked over the last six months. The middle half of those sales closed between $50,000 and $165,900.

Where Decatur sale prices land

Medians hide the shape of a market. The distribution above covers the closed sales Resideline tracked in Decatur over the last six months, trimmed to the 5th through 95th percentile, with the middle half of sales closing between $50,000 and $165,900. Where your target property sits inside that spread matters more than the citywide median.

How long a sale takes here

• •Listed to under contract: a median of 23 days, across 407 Decatur closings Resideline tracked in the last six months
• •Contract to closing: a median of 21 days, across 371 Decatur closings Resideline tracked in the last six months

The Decatur angle

The width means $109,000 is a weak anchor for any specific address, since $50,000 and $165,900 leave a great deal of room. The depth, 671 closings, means you can replace that anchor with something better. Filter strictly from the start: one property type, a narrow size window, a short radius. Where the band is this broad, a loosely matched set is not much more informative than the citywide figure it was meant to improve on. Where the property belongs there, tighten the screen further and quote a range that reflects the dispersion rather than hiding it.

From market read to offer price

A spread this wide means the citywide number cannot price a specific address; the step that matters is the property-level read. 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 and graded against the real closing price after it sells. As of August 2026, the public scoreboard showed 3.26% median error across 11,465+ graded closings. See the live accuracy dashboard for the receipts, or read how the Area Market Snapshot works.

Run any Decatur 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: Decatur, IL
Data updated: August 2026
Analysis period: last six months
Tracked closings: 671
Median sold price: $109,000
Median sold $/sqft: $77 (638 qualifying)
Property mix: 95% houses
https://resideline.com/blog/decatur-il-housing-market

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 Decatur over the last six months, and is refreshed when the data is. The closings we track inside the city limits are not limited to listing-service sales: they also include foreclosure deeds, estate and family transfers, and other off-market sales that portal medians exclude, which is why 23% of the 671 closings in this window never appeared on a listing service, and the median of MLS-listed sales alone was $122,500.