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91951 ZIP Code

ZIP Code: 91951 National City

Extra Details of ZIP Code 91951

ZIP Code 91951
Zip Code Type PO Box
State California - CA
Official Zip Code Name National City
Primary County San Diego
Area Code (s) 619
Racial Majority NA%
Elevation Range 0-0 Feet

Data: State Statistics Office | Updated on: May 28, 2026

How to write a U.S. envelope?

The first step is to write the recipient address:
First, you need to fill in the recipient's mailing information in the center of the envelope. The first line is also the recipient's name. When writing the recipient's name, pay attention to the title, and write the person's title and name in the middle of the envelope. On the second line, write the recipient's full address, including any associated apartment or suite numbers. The more detailed the better. The third line writes the recipient's city, state, and zip code, this information is the last line of the address.

The second step is to write the reply address:
The return address is three lines, the first line will be the sender's name. The second line writes the sender's detailed address, including the street address, please remember to write the house number. On the third line write your city, state abbr, and zip code.

Finally, don't forget to stick the stamp on the right top corner. Otherwise, the letter will not go into the delivery process.

How to Read Zip Code

Population and Employment

population

Unemployment Rate
Poverty Rate
Non-Citizens

Location of Zip Code 91951

On this map you can see exactly where postcodes are located within Germany.

Gender & Age Statistics

Gender

  • Male
  • Female

Age

  • <10 years
  • 10-17 years
  • 18-34 years
  • 35-64 years
  • 65+ years

91951 Demographics

Racial Diversity

  • White
  • African American
  • Hispanic
  • American Indian or Alaska native
  • Asian & Other race

Education Levels

  • Master's degree or above
  • Bachelor's degree
  • Some college or associate degree
  • High school diploma or vocational degree
  • Less than high school diploma

91951 Income

Median Household Income

National

Household Income Brackets

  • <$30k
  • $30-$44k
  • $45-$84k
  • $85-$149k
  • $150k+

Median Individual Income

National

Individual Income Brackets

  • <$20k
  • $20-$34k
  • $35-$74k
  • $75k+

Online Business Directory

Whether you're looking for hotels, hairdressers, doctors or lawyers in National City, CA. You can find these phone numbers in our phone book. With us, you can easily book a restaurant or hotel in your location. You can also find reputable real estate agents and insurance agents. Everything you need is easily accessible here!

Sanveo Inc
39899 Balentine Dr, Suite 265, Newark, 94560

Bay Area Escrow Services
2817 Crow Canyon Rd, Suite 102, San Ramon, 94583

Creative Solutions
San Francisco, California, USA 94102, San Francisco, 94102

Security Guard Pros
21828 Lassen St., Suite A, Chatsworth, 91311

Solar Technologies
14 Beta Ct, San Ramon, 94583

Car Window Tinting Services
Newport Beach, California, USA, Newport Beach,

Gatsby Investment
269 S Beverly Dr. Suite 408, Beverly Hills, 90212

Utopia Property Management Elk Grove
9129 Elk Grove Blvd, Elk Grove, 95624

Schools Serving National City

Library National City

Lincoln Acres Library
2725 Granger Avenue National City, CA 91950

National City Public Library
1401 National City Blvd. National City, CA 91950

Museum National City

National City Depot
922 W 23rd St National City, CA 91950

San Diego Electric Railway Association
922 W 23rd St National City, CA 91950-6428

Hospital National City

Paradise Valley Hospital
2400 East 4th St National City, CA 91950

University National City

Bellus Academy-national City
1520 East Plaza Blvd National City, CA 91950

Itt Technical Institute-national City
401 Mile Of Cars Way, Suite 100 National City, CA 91950

California Institute Of Arts & Technology-national City
401 Mile Of Cars Way Suite 100 National City, CA 91950-6610