If you have spent any time comparing Lake County suburbs on a spreadsheet, you already know the headline number: Gurnee's median sale price sits well below Libertyville's, nowhere near Highland Park's, and nothing like Lake Forest's. In the three months ending June 2026, Gurnee homes sold for a median of $399,782, up a modest 3.2 percent from a year earlier. Libertyville, a few miles south, sold for $674,633 in the same window, up 11.5 percent. On price alone, Gurnee looks like the obvious value play in Lake County.
Then you look at how fast those homes actually moved, and the story stops making sense. Gurnee's average time to contract during that same period was 47 days. Highland Park, at a median of $874,524, sold in 35. Deerfield, at $678,631, also closed in 35. The two most expensive towns in the comparison moved faster than the cheapest one. If you walked into this market assuming the lower price point would force you to move fastest, the data says otherwise.
The assumption buyers bring in
Most people comparing Gurnee to its neighbors start with a simple mental model: cheaper homes attract more buyers, more buyers means more competition, and more competition means faster contracts. It is intuitive, and in a lot of markets it holds. It just does not hold here, at least not in the way most buyers expect.
Look at the pattern across seven Lake County towns tracked over the same three-month window through June 2026.
| Town | Median Sale Price | YoY Change | Avg. Days on Market | Months of Supply |
|---|---|---|---|---|
| Highland Park | $874,524 | +6.0% | 35 | 2.1 |
| Deerfield | $678,631 | -4.4% | 35 | 2.2 |
| Libertyville | $674,633 | +11.5% | 38 | 2.6 |
| Vernon Hills | $460,749 | +0.7% | 44 | 2.3 |
| Mundelein | $427,757 | +12.3% | 49 | 2.8 |
| Gurnee | $399,782 | +3.2% | 47 | 2.5 |
| Grayslake | $394,785 | +22.0% | 42 | 2.5 |
Months of supply, the metric that tells you how tight inventory actually is, barely moves across this list. Every town here sits between 2.1 and 2.8 months, deep in seller's market territory by any conventional measure. So the difference in days on market is not being driven by a huge gap in scarcity. Something else is setting the pace.
The two towns with the shortest time to contract, Highland Park and Deerfield, are also the two with the highest prices on this list. Speed here is not tracking affordability. It is tracking something closer to buyer readiness.
The likely mechanism is not mysterious once you think about who is shopping at each price point. A buyer qualified for a home in the high $800,000s to $1.4 million range has usually cleared financing hurdles well before they tour a property. They move with a lender letter in hand and a shorter list of homes that fit their criteria, so when the right one appears they act immediately. In the $390,000 to $460,000 band, where Gurnee, Grayslake, Mundelein, and Vernon Hills all sit, the buyer pool is wider and more price sensitive. More people are touring, more offers include financing or inspection contingencies that take time to negotiate, and the inventory itself is more mixed, with some homes needing updates that slow negotiations even when overall demand is strong. Wider interest does not automatically translate into faster decisions.
The Grayslake number that should give you pause
Here is where a single line item in this table stops being a curiosity and starts being a caution. Grayslake and Gurnee are priced almost identically, $394,785 versus $399,782, a gap of about $5,000. But Grayslake's price rose 22.0 percent year over year in the same three-month window, while Gurnee rose 3.2 percent. That is not a small gap. It is nearly seven times the rate of appreciation on two towns sitting side by side on the price scale.
Before anyone reads that as "Grayslake is outperforming Gurnee," it is worth remembering what a median actually measures. A median sale price reflects whichever homes happened to close in that specific window, not the value of every home in town. A run of larger or more recently renovated homes closing in Grayslake during the spring can push the median up sharply without any single home actually gaining that much value. The same effect works in reverse. A quarter with more starter homes or as-is estate sales closing in Gurnee can hold the median flat even while individual well-kept homes are appreciating normally. One quarter of data on a single town's median is a snapshot, not a trend line, and the gap between these two towns is a good reminder to ask what actually sold before drawing conclusions from the headline percentage.
What you can say with more confidence is this: two towns with nearly identical entry price points are not interchangeable right now, and the safest way to know which one fits your budget and timeline is a comparison built on actual closed sales in your price range and floor plan, not the town-wide median.
What this actually means if you are bidding in Gurnee
None of this means Gurnee is a slow or soft market. Gurnee's own listing data as of mid-2026 shows homes going under contract in an average of 45 to 47 days, with the most competitive, best-prepared listings selling in as few as 31 days for about 3 percent over asking. That is still a real estate market with genuine competition. It is just a different flavor of competition than what you would face in Highland Park or Deerfield, where the buyer pool is smaller and more uniformly ready to move.
For a buyer, the practical takeaway is that Gurnee gives you slightly more room to do real diligence, an inspection contingency that gets read carefully, a second showing before you write an offer, without the same all-or-nothing urgency that defines the upper price tiers a few towns over. For a seller, it means pricing accurately still matters more than pricing aggressively. A home that is priced to reflect actual recent closings, not a hopeful read of the town median, is the one that lands in that 31-day, above-asking group rather than the 47-day average.
Gurnee's demand also has a broader base than a single town's numbers can show. The town is anchored by two large, steady draws, Gurnee Mills and Six Flags Great America, that keep year-round visibility high even outside the typical spring buying season. Search data on Gurnee homes backs this up. In the first quarter of 2026, 89 percent of people searching for homes in Gurnee wanted to stay within the greater metro area, while incoming interest from outside the region was led by buyers searching from the New York, Washington D.C., and San Francisco metros. Outbound Gurnee searchers most often looked toward Cape Coral, Milwaukee, and Phoenix. That is a wide geographic pull for a town of its size, and it explains why demand feels broad and steady rather than concentrated into a handful of frantic bidding wars.
Our office sits in Libertyville, a short drive from Gurnee, and we watch both markets every week because so many of our buyers are cross-shopping the two. The pattern above is exactly why we tell clients not to lead with the town-wide median when comparing Gurnee to its neighbors. Lead with the actual comparable sales in the specific price band and floor plan you are chasing, because that is where the real difference between a 31-day sale and a 47-day sale shows up.
A few questions worth asking before you write an offer
If Gurnee is cheaper, why would a seller there wait longer for a buyer? It is less about waiting and more about the composition of the buyer pool. More people can afford to look, which means more showings and more negotiation on financing and inspection terms, and that stretches the average even when overall demand stays strong.
Does Grayslake's price jump mean I should buy there instead of Gurnee? Not on its own. A one-quarter swing in a town median can reflect which specific homes sold, not a shift in underlying value. Compare actual recent closings in your price range and square footage in both towns before deciding.
Is 2.5 months of supply in Gurnee actually tight? Yes. A balanced market sits around five to six months of supply. Anything under three months, which describes every town in this comparison, still favors sellers, even where days on market run a bit longer.
Numbers like these change from one quarter to the next, and the gap between Gurnee and its neighbors is worth watching rather than treating as settled. If you are weighing Gurnee against Libertyville, Grayslake, or anywhere else in Lake County, the fastest way to get a real answer is a comparison built on what has actually closed near the home you are considering. The Renee O'Brien Group tracks these numbers town by town across Lake County every week. Get an Instant Home Valuation to see where your specific property or price range actually stands right now, not where the town-wide average says it should be.
