Why No Two Websites Agree on Wilmette's Home Prices

What is the median home price in Wilmette right now? Ask three different sites the same week and you will get three different answers to a question that sounds like it should have one.

In September 2026, a national listing site put the village's median list price at $780,000, a drop of roughly 30 percent from the year before. Around the same stretch, an automated forecasting site estimated a very different figure, putting the median closer to $1.02 million as of late August. A national home-value tracker reported the average home value at $961,183 as of March 2026, up 11 percent over the past year. None of these numbers describe a different Wilmette. They describe the same village, measured several different ways.

That gap is the real story here. If you are comparing Wilmette to other North Shore villages using whatever number a search result hands you, you are not comparing markets. You are comparing methodologies.

Same Village, Two Different Redfin Pages

The clearest proof that boundaries matter more than most buyers realize comes from a single source disagreeing with itself. Redfin's village-level Wilmette page reported a median sale price of $950,000 for March 2026, down 15.4 percent from the year before, with 27 homes sold that month compared to 30 a year earlier. Redfin's own page for ZIP code 60091, covering roughly the same footprint, reported a median sale price of $1.0 million for that same month, up 4.6 percent year over year, on 61 sales compared to 81 the year before.

Same company. Same month. More than double the sales counted on one page versus the other, and the price trend running in opposite directions.

That happens because "Wilmette" is not one boundary. Village limits and ZIP code lines rarely match exactly, and a ZIP code will often sweep in transactions from adjoining parcels that a strict village-limit filter excludes. When your sample for a whole month of sales is measured in dozens rather than hundreds, adding or dropping even a handful of transactions is enough to flip the trend line.

List Price and Sale Price Are Not the Same Data Point

A second source of confusion sits inside the transaction itself. Some aggregators report what sellers are asking. Others report what buyers actually paid. Those are different numbers at different moments, and treating them as interchangeable creates false year-over-year comparisons.

The figure showing a roughly 30 percent decline in September 2026 was a median list price, tracking what is currently on the market, not what has closed. A closed-sale figure from around the same period told a different story: one brokerage's own market update put the median sale price near $1.23 million, up roughly 44 percent from the year before, with homes selling in about 33 days and sale-to-list ratios above 102 percent, meaning the typical home was closing above its asking price. A list-price snapshot and a sold-price snapshot can move in opposite directions during the same season, because they are measuring different points in the pipeline.

Average and Median Are Answering Different Questions

Even when two sources agree on measuring sold prices, average and median tell different stories. The average gets pulled by whatever sits at the top of the range. One data provider put the full spread of Wilmette home values anywhere from roughly $185,000 to $6.37 million within a single ZIP code. A handful of closings at the high end of that range can lift an average by double digits in a single year without changing what a typical buyer pays for a typical house. The median, the price at which half of sales land above and half below, is a steadier read on the middle of the market, but it is only as stable as the number of sales feeding it.

Here is what that looks like side by side for roughly the same window in 2026:

Five rows, five different numbers, all describing the same village in the same year.

Thin Volume Is What Makes All of This Possible

None of this contradiction would matter in a market with thousands of monthly closings. It matters in Wilmette because monthly sales volume is small enough that a few transactions can swing the entire report.

One brokerage's single-family-only tracking shows how volatile that thin volume gets. Comparing June 2025 to June 2024, sold prices in that single-family slice were up 43.51 percent. Comparing that same June to the prior month of May 2025, prices were down 3.99 percent. Some of the homes actively listed in Wilmette during that June sold that month. Others stayed on the market or were pulled by their sellers. With 88 active listings and 27 closings, that brokerage calculated 3.26 months of supply, which it read as a neutral, balanced market rather than a clear seller's or buyer's advantage.

A market where most active listings do not sell in a given month, and where the ones that do sell can shift the median by tens of thousands of dollars depending on which four or five houses happened to close, does not produce one stable headline number. It produces a range, and the range is the honest answer.

What This Means If You're Actually Pricing a Home

None of this means Wilmette pricing is unknowable. It means the village-wide median is the wrong tool for a specific decision, and a narrower comp set is the right one.

Wilmette's own pockets carry distinct pricing patterns, and the streets sit close enough together that a village-wide average blends them into one number that describes none of them precisely. Neighborhoods like McKenzie, Harper, and Kenilworth Gardens each carry their own pricing rhythm, shaped in part by proximity to anchors like Gillson Beach and Harper School Park. A buyer comparing a home two blocks from the lake to a similarly sized home a mile inland is comparing two different micro-markets that a single village median cannot separate.

If you are pricing a listing or sizing up an offer, the useful question is not what Wilmette's median price is this year. It is what homes on this street, in this size range, in this specific product type, actually closed for in the last 60 to 90 days. That answer requires pulling closed comps directly, not scrolling to whichever aggregator loads first.

A Few Questions Worth Asking Before You Trust a Number

Is this a list price or a sold price? If a source doesn't specify, assume it might be tracking active listings rather than closings, and treat the figure as an asking number rather than a market outcome.

What geographic boundary is being used? Village limits and ZIP codes rarely match, and in a market this size the difference can double or halve the sample behind the number.

How many transactions is this actually based on? A median built on 27 sales behaves very differently than one built on 270. When a source doesn't disclose sample size, that absence is itself useful information.

A buyer or seller who checks list price, sold price, boundary, and sample size before trusting a headline number will price more accurately than one who trusts whichever site loads first.

If you're trying to price a Wilmette home to sell, or figure out what a specific budget actually buys on a specific street, a village-wide median won't get you there. Wexler Gault Group pulls closed comps street by street and product type by product type. Get a Complimentary Home Consultation and we'll show you what the numbers actually say about your address, not the village average.