Sag Harbor’s reported rent is $53,556 a month. Here’s why that number is misleading

Our data says the typical rent in Sag Harbor, New York is $53,556 a month and that number is correct but at the same time, pretty useless as a guide to living there. This is due to small samples, where it quietly distorts rent figures.

What a small sample does to a median

A median is the middle value of whatever information is available. In Chicago, that middle sits inside thousands of rentals, so one unusual listing doesn't really change the median. But compare that to a town of just 2,489 people where a handful of rentals are on the market and several are seasonal estates, the middle value can swing tremendously.

Look at the rental prices over a single year in towns under 12,000 residents.

Nobody's rent actually fell by 87.8% in Margate City but what changed is the small number of properties that were listed. Across big cities, those with populations above 600,000, the average absolute year-over-year change on average is under 5%. The small-town figures above are three to eighteen times that.

The resort problem on top of it

Several of these places have a second issue as well. Sag Harbor, Aspen and Del Mar carry short-term and seasonal luxury rentals in the same pool as year-round housing. A summer rental listed at a weekly rate that gets converted to a monthly figure produces numbers like $53,556, which inflates rental numbers for a vacation booking.

That's why coastal and mountain resort towns show the most extreme figures in nearly all rent datasets, ours included. It isn't that they're unaffordable in some particular way, though yes, many are expensive. It's that the vacation prices inflate things.

How to read a rent number honestly

Three checks you need to do. Check the population of the town first. Under roughly 25,000 people, treat a single month's median as more of a rough signal rather than as a fact, and look at the trend across several months instead of the latest printed rent.

Then check if it's a resort town, because if a place has a tourist season, the rent figure is blending two different markets, and the year-round number is almost certainly lower than what's displayed.

Lastly, check the difference of the year-over-year numbers, since real markets move a few percent points a year, and the fastest large city in our data moved 28.6%. Anything past about 30% in a small town is usually the sample changing, not the market.

For larger places the same caution barely applies, which is why our analysis of the most and least predictable markets sticks to cities above 350,000 people.

Sources

• RentDataNow city rent data, anchored to the Zillow Observed Rent Index, June 2026, with population figures from the US Census Bureau