Coopers Neck Lane is the most expensive street in the Hamptons, and one of the priciest in the US. Zillow No helicopters, no mega yachts. At first glance, Indian Creek is just a small private island in Biscayne Bay. But South Florida real estate agent Cory Waldman begs to differ.

“It’s a city within a city,” the Coldwell Banker associate said. “They have their own police force. The lot sizes are enormous. It’s top-notch.”

Across the country, luxury real estate agent Kofi Natei Nartey has a similar reaction — but not about Indian Creek.

“Beverly Park is the most exclusive gated community in Los Angeles,” The Agency‘s Sports & Entertainment Division director said. “With guard-gated access only, it attracts some of the highest net worth individuals and celebrities in the world.”

They’re not exaggerating. New data shows Indian Creek Island Road and Beverly Park Circle are the most expensive streets to live on in the US.

Indian Creek, known locally as Billionaire Bunker, is home to four of the richest people in America, the Miami Herald reports. Beverly Park Circle is home to Denzel Washington and Eddie Murphy, among other big names.

So what does it cost to live there? Based on Zillow’s analysis of streets with at least 10 homes, here’s a look at the median home value for the top 15:

Names vs. numbers

This six-bedroom, 10-bath home at 3600 Nelsons Walk is on the market for $18.9 million in Naples, Florida. Zillow

Interestingly, all of the priciest streets are names, rather than numbers. In “Zillow Talk: The New Rules of Real Estate,” co-authors Spencer Rascoff and Stan Humphries explore what’s in a street name. By digging into the data, they’ve found a named-street premium exists across the country.

Among the 20 largest metro areas, “we only found three places in the entire nation where named streets don’t have the advantage,” they write. “In Atlanta and New York, named and numbered streets come out roughly equal. Denver is the solitary example of a place where numbered streets are more valuable — probably because homes in its premier neighborhood of Country Club are located on numbered streets.”

What gives named streets a higher price tag? Rascoff and Humphries say in general, the most valuable street names describe something about a home’s location. Indian Creek Island Road is a great example because “island” indicates the homes are near water, and therefore probably worth more than nonwaterfront homes in the area.

Suffixes matter

This home at 705 Arvida Parkway spans approximately 390 linear feet right on the water and is currently listed for $9.5 million. Zillow

It’s easy to gloss over the letters tacked on at the end of a street name. But as shown above, living on Beverly Park Terrace versus Beverly Park Circle could cost you hundreds of thousands of dollars.

In their analysis, Rascoff and Humphries discovered the most common suffixes — street, boulevard, and avenue — tend to be the least valuable. Way and place, meanwhile, make up only 4 percent of street name suffixes nationwide, and their homes’ are typically worth more.

These findings shed light on the myriad factors at play in local real-estate markets. Of course, at the end of the day, lot comes down to perception.

“There’s nothing else like [Indian Creek] in South Florida,” Waldman said. “It’s the most prestigious address.”