Most Popular Zip Codes in America

Zip codes are far more than mail routing numbers — they have become shorthand for neighborhoods, lifestyles, and social status in American culture. Some zip codes are famous, others are densely packed with residents, and a few command astronomical real estate prices. This guide explores America's most notable zip codes and what makes them significant.

Most Populated Zip Codes

Some zip codes contain staggeringly large populations, rivaling small cities in their own right.

Highest Population Zip Codes

1. 77449 — Katy, Texas — over 120,000 residents in this sprawling Houston suburb
2. 11368 — Corona, Queens, New York — one of the most densely populated zip codes in the nation
3. 60629 — Chicago, Illinois — covering the diverse Southwest Side neighborhoods
4. 79936 — El Paso, Texas — a large residential area in east El Paso
5. 90011 — South Los Angeles, California — one of the most densely populated areas in LA
6. 11226 — Flatbush, Brooklyn, New York — a dense residential neighborhood
7. 90201 — Bell Gardens/Huntington Park, California — heavily populated LA suburbs
8. 77084 — Houston, Texas — a sprawling western Houston zip code
9. 60618 — Chicago, Illinois — the Avondale and Logan Square area
10. 11385 — Ridgewood, Queens, New York — a densely populated neighborhood on the Brooklyn-Queens border

What Makes a Zip Code Populous

• Dense urban housing — apartment buildings and row houses pack more people per square mile
• Suburban sprawl — some suburban zip codes cover vast geographic areas
• Affordable housing — lower-cost areas tend to have more residents per household
• Immigration — many populous zip codes are gateway communities for new immigrants

Most Famous Zip Codes

Certain zip codes have transcended their postal function to become cultural icons.

Culturally Iconic Zip Codes

• 90210 — Beverly Hills, California — perhaps the most famous zip code in the world, made iconic by the TV show "Beverly Hills, 90210"
• 10001 — Midtown Manhattan, New York — often used as a default New York zip code
• 90077 — Bel Air, California — associated with extreme wealth and the "Fresh Prince"
• 10021 — Upper East Side, Manhattan — synonymous with old-money New York
• 33139 — South Beach, Miami — the glamorous Art Deco district
• 02134 — Allston, Massachusetts — famously recited on the PBS show "ZOOM"
• 37064 — Franklin, Tennessee — a celebrity favorite south of Nashville

Wealthiest Zip Codes

Some zip codes are defined by their extraordinary median household income and property values.

Highest Median Income Zip Codes

• 94027 — Atherton, California — consistently ranked as America's most expensive zip code
• 33109 — Fisher Island, Florida — an ultra-exclusive island accessible only by ferry
• 10577 — Purchase, New York — a Westchester County enclave
• 07078 — Short Hills, New Jersey — one of the wealthiest communities in the Northeast
• 60043 — Kenilworth, Illinois — an exclusive North Shore Chicago suburb
• 90274 — Rancho Palos Verdes, California — a coastal community with sweeping ocean views
• 06830 — Greenwich, Connecticut — a legendary hedge fund and finance community

What Your Zip Code Reveals

Zip codes contain a surprising amount of demographic information about the people who live there.

Data Associated With Zip Codes

• Median household income — zip codes vary enormously in wealth
• Education levels — some zip codes have near-universal college graduation rates while others have very low rates
• Age distribution — retirement communities vs. young-professional neighborhoods
• Racial and ethnic composition — zip codes often correspond to distinct demographic groups
• Household size — urban zip codes tend to have smaller households
• Home ownership rates — some zip codes are predominantly renters while others are almost entirely homeowners

How This Helps People Search

Understanding zip code demographics can help you conduct more effective people searches:

• Knowing a zip code narrows geography significantly
• Demographic data helps confirm identity — if you know someone's approximate age and income level, zip code data helps verify matches
• Use our address lookup to search within specific zip codes

Zip Codes and Area Codes

Zip codes and area codes often overlap but do not perfectly correspond. A single zip code may be served by multiple area codes, and vice versa.

Using Both for Search

• Combine zip code and area code information for more precise searches
• Use our reverse phone lookup alongside zip code searches
• Browse our phone directory to find area codes associated with specific regions

Zip Code Facts

• The zip code system was introduced in 1963 by the United States Postal Service
• ZIP stands for Zone Improvement Plan
• There are approximately 41,683 zip codes in the United States
• The lowest zip code is 00501 in Holt, New York (an IRS processing center)
• The highest zip code is 99950 in Ketchikan, Alaska
• Some zip codes are assigned to single buildings or organizations

Using Zip Codes in People Search

Zip codes are one of the most useful tools for narrowing a people search. When you have even a partial address or know someone's general neighborhood, a zip code helps dramatically. Use our people search tool with location information, explore state directories for California, Texas, New York, and other states, and combine zip code knowledge with other search methods for the best results.