Atherton

Overview for Atherton, CA

7,021 people live in Atherton, where the median age is 49 and the average individual income is $203,138. Data provided by the U.S. Census Bureau.

7,021

Total Population

49 years

Median Age

High

Population Density Population Density This is the number of people per square mile in a neighborhood.

$203,138

Average individual Income

Atherton, CA

The most expensive zip code in America — and the most private

Atherton, California — At a Glance

What You Need to Know Before Looking at Atherton Real Estate

County

San Mateo

Zip Code

94027

Population

~7,100

Median Home Price

$7M – $9M+

Min. Lot Size

1 Acre

Commercial Zoning

None

Sidewalks

None (by design)

Distance to SFO

~20 min

Atherton is in San Mateo County — not Santa Clara County, a common source of confusion. Zip code 94027 has ranked as the most expensive in the United States for multiple consecutive years. The town has no commercial zoning, no sidewalks, no street lights, and a 1-acre minimum lot size — all deliberate design choices to maintain privacy and a park-like character.

Looking at Atherton Real Estate?

Most Atherton estates never reach public listings

The Atherton market operates largely off-market. Drew Doran has established relationships with estate owners, family offices, and legal counsel representing sellers who require complete discretion. If you are a qualified buyer, the conversation starts privately.

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Living in Atherton, CA

 

A Legacy of Preservation

Atherton, California is situated between Redwood City and Menlo Park in San Mateo County. It is one of the few incorporated towns in the Bay Area with zero commercial zoning — no retail, no restaurants, no offices. The town has deliberately maintained a "rural character" with winding, tree-lined roads and no street lights, preserving the night sky and the privacy of its residents. For global technology leaders, venture capitalists, and entrepreneurs who need to be within minutes of Sand Hill Road or major tech campuses, Atherton delivers an uncomplicated equation: maximum privacy, minimum commute.

The Estate Lifestyle

The real estate market here consists almost entirely of gated estates on lots of one acre or more. Behind the privacy hedges and security gates are some of California's most significant residential compounds — from 19th-century historic summer cottages to ultra-modern smart homes designed for the post-IPO buyer. Entry-level in Atherton means something different than anywhere else: expect to start your search at $5M for an older home on a standard lot, and plan for $15M–$30M+ for a fully modernized estate with gates, a motor court, and guest quarters. The combination of proximity to Palo Alto, Stanford, and SFO makes this the default choice for those who have moved beyond the question of cost.

The Estate Privacy Matrix

 

Atherton's three primary zones offer meaningfully different privacy profiles. The zone matters more than the address.

Zone-by-Zone Privacy Guide — Atherton 94027

For buyers whose first requirement is security infrastructure and perimeter control

Zone Character Privacy Level Best For Price Range
West of Alameda Rolling terrain, maximum seclusion, hidden driveways Maximum — properties not visible from street UHNW buyers, international principals, security-critical households $10M – $30M+
Lindenwood Gated enclave, historic character, cul-de-sac lots High — controlled access, shared gate infrastructure Tech executives, family compounds, multi-generational estates $7M – $20M
Lloyden Park Tree-lined, slightly more walkable, closer to Caltrain Moderate — larger lots but more accessible streets Peninsula commuters, buyers who also want Menlo Park walkability $5M – $12M

Atherton vs. Comparable Peninsula Communities

How the most expensive zip code in America compares to its nearest peers

Community County Min. Lot Commercial Zoning Typical Estate Range Character
Atherton San Mateo 1 acre None $5M – $30M+ Flat, park-like, maximum privacy
Hillsborough San Mateo ~0.5 acre None $4M – $20M Hillier terrain, views, winding roads
Woodside San Mateo 1–3 acres Minimal $4M – $25M Equestrian, redwoods, rustic luxury
Portola Valley San Mateo 1 acre+ None $3M – $15M Foothills, trail access, rural feel
Los Altos Hills Santa Clara 1 acre None $3M – $15M Foothills, spread-out, rural suburban
Menlo Park San Mateo Varies Yes $2M – $10M Walkable, Sand Hill Road access

Unrivaled Privacy & Exclusivity

 

Designed for Discretion

Atherton's town planning is intentionally designed to maximize anonymity. Strict zoning laws prevent all commercial development. Streets are narrow and unlit by design — no sidewalks, no street lights, no reason for foot traffic. Properties are set behind mature heritage oaks, high security gates, and dense perimeter hedges. The result is a level of residential seclusion that is genuinely rare anywhere in the Bay Area, let alone this close to SFO and the major tech campuses of Palo Alto and Menlo Park.

Who Lives in Atherton, CA?

The resident list is confidential by design, but the community is well known to include technology executives, venture capital partners from Sand Hill Road firms, professional athletes from Bay Area franchises, and international principals who require a secure and discreet U.S. base. The common thread is not industry — it is the prioritization of privacy, security infrastructure, and a property that functions as a private compound rather than simply a large house. Atherton is for buyers who have already decided that proximity to the office matters, but being seen does not.

The Social Heart: Menlo Circus Club

 

Because Atherton has no commercial zones, social life revolves around the historic Menlo Circus Club — a private, members-only institution located within the town. From world-class equestrian facilities and polo matches to tennis, swimming, and gala events, the club functions as the community's living room. Residents who require the broader restaurant and retail amenity set use the neighboring downtowns of Menlo Park and Palo Alto daily — both are within a five-minute drive. The Stanford Shopping Center, Oak + Violet, and Selby's in Redwood City form the practical day-to-day amenity corridor for most residents.

Dining, Recreation & Culture

 

Atherton has no restaurants, no shops, no commercial life of any kind — by design. What it does have is five-minute access to some of the best dining and cultural institutions on the Peninsula.

The Atherton Amenity Map

Where residents actually go — and how far

Category Destination Location Drive Time
Fine Dining Selby's (Michelin) Redwood City 5 min
Fine Dining Oak + Violet Menlo Park 5 min
Luxury Shopping Stanford Shopping Center (Hermès, Cartier) Palo Alto 8 min
Cultural Center for Performing Arts, Menlo-Atherton Menlo Park 5 min
Nature / Park Holbrook-Palmer Park (22 acres) Atherton In-town
Wine Country La Honda Winery, Thomas Fogarty Winery Santa Cruz Mountains 25 min
Private Club Menlo Circus Club (equestrian, polo, tennis) Atherton In-town
Airport San Francisco International (SFO) San Mateo County 20 min

Schools

 

Atherton is served by the Las Lomitas Elementary School District, consistently ranked among the top five public elementary districts in California. For secondary education, residents have access to both elite private institutions and one of the Bay Area's strongest public high schools.

  • Sacred Heart Schools — Private, PK–12. One of the most academically competitive schools on the Peninsula with an Ivy-track college counseling program.
  • Menlo School — Private, 6–12. Known for STEM and strong college placement in the UC system and East Coast universities.
  • Menlo-Atherton High School — Public, 9–12. Competitive academics with strong AP and IB programs.
  • Las Lomitas Elementary — Public, K–3. Consistently ranked among California's top public elementary schools.

Frequently Asked Questions

 
What county is Atherton, CA in?

Atherton is in San Mateo County, California. This is a common source of confusion — Atherton borders both San Mateo and Santa Clara counties, but the town itself is entirely within San Mateo County. Zip code: 94027.

Why are there no sidewalks in Atherton?

Atherton maintains a "scenic rural" preservation policy. The absence of sidewalks and streetlights is intentional — it discourages foot traffic from non-residents, enhances privacy, and preserves the park-like atmosphere that defines the town's character.

What is the minimum lot size in Atherton?

Most of Atherton is zoned for a minimum of one acre. Some grandfathered lots are smaller. This zoning prevents density and ensures the estate character is maintained across all parcels.

Is Atherton safe?

Yes. Atherton has its own dedicated police department serving a population of approximately 7,100 residents, which means one of the highest officer-to-resident ratios in the Bay Area. Rapid response times and regular neighborhood patrols are the norm.

What is Atherton, CA known for?

Atherton is known as the most expensive zip code in the United States. It is also known for being the most private incorporated town in the Bay Area — no commercial zoning, no sidewalks, no street lights, 1-acre minimum lots, and a community composed largely of technology executives, venture capitalists, and other high-profile principals requiring residential security.

Explore Nearby Neighborhoods

 

Atherton sits at the center of the Peninsula's most exclusive residential corridor. These communities each offer a distinct variation on the same core proposition: privacy, proximity to tech, and access to San Francisco.

Menlo Park Palo Alto Hillsborough Woodside Portola Valley Los Altos Hills Los Altos Redwood City San Carlos San Mateo Belmont Mountain View Palo Alto Hills Half Moon Bay Pacifica

Around Atherton, CA

There's plenty to do around Atherton, including shopping, dining, nightlife, parks, and more. Data provided by Walk Score and Yelp.

8
Car-Dependent
Walking Score
53
Bikeable
Bike Score

Points of Interest

Explore popular things to do in the area, including Délice Glacé, Dirty Birds Collective, and My Swing Studio.

Name Category Distance Reviews
Ratings by Yelp
Délice Glacé Logo
Dining 1.38 miles 35 reviews 5/5 stars
Dirty Birds Collective Logo
Shopping 1.01 miles 12 reviews 5/5 stars
My Swing Studio Logo
Active 4.01 miles 29 reviews 5/5 stars
Tenndeavor Tennis Lessons Logo
Active 3.23 miles 13 reviews 5/5 stars
Caio Terra Academy Palo Alto Logo
Active 4.28 miles 7 reviews 5/5 stars
MPA Karate Logo
Active 0.99 miles 5 reviews 5/5 stars

Demographics and Employment Data for Atherton, CA

Population Households Employment

Atherton has 2,266 households, with an average household size of 2.81. Data provided by the U.S. Census Bureau. Here’s what the people living in Atherton do for work — and how long it takes them to get there. Data provided by the U.S. Census Bureau. 7,021 people call Atherton home. The population density is 1,399.69 and the largest age group is Data provided by the U.S. Census Bureau.

7,021

Total Population

High

Population Density Population Density This is the number of people per square mile in a neighborhood.

49

Median Age

49.05 / 50.95%

Men vs Women

Population by Age Group

0-9:

0-9 Years

10-17:

10-17 Years

18-24:

18-24 Years

25-64:

25-64 Years

65-74:

65-74 Years

75+:

75+ Years

Education Level

  • Less Than 9th Grade
  • High School Degree
  • Associate Degree
  • Bachelor Degree
  • Graduate Degree
2,266

Total Households

2.81

Average Household Size

$203,138

Average individual Income

Households with Children

With Children:

Without Children:

Marital Status

Married
Single
Divorced
Separated

Blue vs White Collar Workers

Blue Collar:

White Collar:

Commute Time

0 to 14 Minutes
15 to 29 Minutes
30 to 59 Minutes
60+ Minutes

Browse Properties in the Area

For Sale
MLS® ML82034310

$34,500,000

77 Flood Circle, ATHERTON, CA 94027
5 Beds 7 Baths 16,855 Sq.Ft.
Pending
MLS® ML82038642

$31,995,000

190 Almendral Avenue, Atherton, CA 94027
6 Beds 8 Baths 11,504 Sq.Ft.
Pending
MLS® ML82036741

$26,500,000

2 Somerset Lane, Atherton, CA 94027
6 Beds 8 Baths 10,909 Sq.Ft.
Search Homes
Atherton

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Contact Details

Drew Doran | CA DRE# 01887354

Phone

(650) 766-2080

Email

[email protected]

Address

1377 El Camino Real Menlo Park, CA 94025

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