Wonder Lake, IL Housing Market 2026: Median Home Price, Last 12 Months
What homes actually sell for in Wonder Lake: a median closing price of $309,990 across 219 closings Resideline tracked over the last 12 months, plus the full price spread.
If you invest in or around Wonder Lake, the number that matters is what homes actually close for, not what sellers are asking. Here is what Wonder Lake sale prices look like right now, built from the closings Resideline tracked over the last 12 months, as of September 2026.
The snapshot
- •Closings tracked, last 12 months: 219
- •Median sold price, last 12 months: $309,990
- •Median sold $/sqft, last 12 months: $185
- •Middle half of sales closed between: $275,000 and $379,990
What the numbers say
Resideline tracked 219 closed sales in Wonder Lake over the last 12 months, with a median closing price of $309,990. 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 $275,000 and $379,990. 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. Across the 217 closings with usable living area, the middle half sold between $167 and $218 per square foot.
Figures last updated September 6, 2026 from closings Resideline tracked.
Median home price in Wonder Lake, IL (September 2026)
The median home price in Wonder Lake is $309,990, measured across the 219 closed sales Resideline tracked over the last 12 months. The middle half of those sales closed between $275,000 and $379,990.
Where Wonder Lake sale prices land
Medians hide the shape of a market. The distribution above covers the closed sales Resideline tracked in Wonder Lake 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 $275,000 and $379,990. Among the 91 Illinois markets with a published band, Wonder Lake's middle-half spread ($275,000 to $379,990) 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 9th 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 62 days, across 136 Wonder Lake closings Resideline tracked in the last 12 months
- •Contract to closing: a median of 39 days, across 115 Wonder Lake closings Resideline tracked in the last 12 months
The Wonder Lake angle
Wonder Lake shows 219 tracked closings over the last 12 months, a median closed sale price of $309,990, and a middle half between $275,000 and $379,990. That band sits among the tightest spreads we track, so ordinary closings land within a short distance of one another and the median is genuinely informative. What tightness does not remove is asymmetry: the climb from $309,990 to $379,990 is longer than the step down to $275,000, so the stronger sales stretch further than the weaker ones do.
From market read to offer price
A market read is the backdrop. 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. See the live accuracy dashboard for the receipts, or read how the Area Market Snapshot works.
Run any Wonder Lake 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: Wonder Lake, IL
Geography: incorporated municipality, Census place 1782855
Data updated: September 2026
Analysis period: last 12 months
Tracked closings: 219
Median sold price: $309,990
Median sold $/sqft: $185 (217 qualifying)
https://resideline.com/blog/wonder-lake-il-housing-market
Writing about this market? Paste this into your post:
<a href="https://resideline.com/blog/wonder-lake-il-housing-market">
<img src="https://resideline.com/images/embed/wonder-lake-il.png" alt="Wonder Lake, IL home sale price distribution, last 12 months" width="1000" style="max-width:100%;height:auto">
</a>
<p>Source: <a href="https://resideline.com/blog/wonder-lake-il-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 Wonder Lake over the last 12 months, and is refreshed when the data is.
Frequently Asked Questions
What is the median home price in Wonder Lake?
The median sold price in Wonder Lake over the last 12 months is $309,990, measured across 219 closings Resideline tracked.
How many homes sold in Wonder Lake last month?
Resideline tracked 16 closed sales in Wonder Lake in August 2026, out of 219 closings tracked over the last 12 months. These are tracked samples of market activity, not official county totals.
What is the typical sale price range in Wonder Lake?
The middle half of Wonder Lake sales over the last 12 months closed between $275,000 and $379,990, with a median of $309,990.
What is the typical price per square foot in Wonder Lake?
Among qualifying Wonder Lake closings Resideline tracked over the last 12 months, the median sold price per square foot was $185, measured across 217 sales with usable living area. Median is used rather than average because outliers distort the mean.
If Wonder Lake prices are this consistent, what makes a property sell above the middle?
Something specific rather than something general, because the market itself is consistent: closings here sit among the tightest spreads we track. The band still reaches further above the median than below it, so the upside cases exist and they tend to be driven by a particular attribute such as frontage, lot, or a recent renovation. That is a matching problem, not an averaging problem. Find closings that share the attribute and let them set the number.
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