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What is a ZIP Code Database?

A set of all U.S. ZIP code data put into row and column format for easy use and manipulation. With over 100 unique fields of information and every ZIP code in the United States, it virtually gives you an unlimited number of ways to analyze all the U.S. Census demographic and ZIP Code information.

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  • Use ZIP Code data for easy lookups and data validation
  • Current Population by ZIP Code in our U.S. Business database
  • 2010 Census Data included in Deluxe & Business
  • All Prices are PER YEAR - Not Monthly/Quarterly
  • All purchases come with MONTHLY updates
  • Multiple Formats: Access, Excel, CSV, and SQL

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Download Sample Business
U.S. ZIP Code Database
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U.S. ZIP Code Database
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U.S. ZIP Code Database
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1 Year Subscription with Monthly Updates
Microsoft® Access (.MDB)
Microsoft® Excel (.XLS)
Comma-Delimited (.CSV)
SQL Data File (.SQL)
Free FTP Access
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Zip Code
Primary County
Area Code
City Type
City Alias Abbreviation
City Alias Name
Time Zone
State FIPS
County FIPS
Daylight Savings
Preferred Last Line Key
Classification Code
Multi County Flag
City Alias Code
Primary Record
Mixed Case City
Mixed Case City Alias
State ANSI Code
County ANSI Code
Facility Code
Unique ZIP Name
City Delivery Indicator
Carrier Route Sortation
Finance Number
City State Key
Households per ZIP Code
White Population
Black Population
Hispanic Population
Asian Population
Hawaiian Population
Indian Population
Other Population
Male Population
Female Population
Persons per Household
Median Avg House Value
Median Income Per Household
MSA Code & Name
PMSA Code & Name
CSA Code & Name
CBSA Code & Name
CBSA Division Code & Name
Mailing Name
All Counties
Median Age
Male Median Age
Female Median Age
# of Businesses
Q1 Payroll
Annual Payroll
# of Employees
Employment Flag
County Growth Rank
2010 Housing Units
2011 Housing Units
Number Increase in Units
% Increase in Units
CBSA Population
CBSA Division Pop.
115th Congressional District
115th Congressional Land Area
# Residential Mailboxes
# Business Mailboxes
Total Delivery Receptacles
Current Population
Multi County Data
Land & Water Area
Box Count
ZIP Intro Date
Alias Intro Date
SSA State County Code NEW!
Medicare CBSA Code NEW!
Medicare CBSA Name NEW!
Medicare CBSA Type NEW!
Market Rating Area ID NEW!
Multi County Data
Expanded Census 2010 Data
Place FIPS Data
ZIP Code
State FIPS
Place FIPS
Place Name
Place Type
Func Status Code
Func Stat Text
FIPS Class Code
Geo ID
Calculated Population
Housing Unit Count
Total Record Area
Land Area
2010 Population
Housing Units of ZIP
Total ZIP Area in square meters
ZIP Area Land in square meters
2010 Place Population
Place Housing Units
Area of Place
Land Area of Place
Pop % to Record
% of Housing Units to ZIP
% of Record area to ZIP area
% Record Land to ZIP Land
% of Place to Total Pop.
% Housing Count to Record
% Area of Place to Record
% Land Place to Record
Download Sample Business
U.S. ZIP Code Database
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U.S. ZIP Code Database
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U.S. ZIP Code Database
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What is a ZIP Code Database?

Our ZIP Code Database is a listing of all U.S. ZIP Codes put into row and column format for easy use and manipulation. It contains over 100 unique fields of information and covers every ZIP code in the United States and Territories. It gives you a virtually unlimited number of ways to analyze all the U.S. Census Demographic and ZIP Code list information. ZIP Code lists are a great tool for marketing, building websites, demographic analysis, store locator, and general analysis.

The data comes in 4 different file types, all of which are made available to you. You can download the ZIP Code Database in Access, Excel, CSV, and SQL for quick and easy importing into anything you need. We also provide FTP Access in order for you to automated the delivery of the Database every month as well as an API for programmatic access.

Pie Chart showing break down of the different ZIP Code types.

How many types of ZIP Codes are there?

The U.S. Postal Service maintains 4 distinct types of ZIP Codes, known by their Classification Code:

  • <BLANK>: General. Used for general mail delivery.
  • P: P.O. Box. Used for mail deliveries to contract mail boxes only.
  • U: Unique. Used for large volumes of mail. Ex: Bank of America, Berkeley, IRS.
  • M: APO/FPO Military. Used for mail to service men and women stationed overseas.

The ZIP Code Database contains a 'Classification Code' column indicating each ZIP Codes type by its letter. This allows you to select only the exact ZIP Code types you need or check is a provided ZIP Code has special limitations (most companies cannot ship to Military ZIP Codes).

ZIP Code are not Geographic Divisions

Most people think of ZIP Codes as the last piece in geographic divisions: Nation > State > County > City > ZIP Code. This is not true. ZIP Codes were created exclusively for the expedient delivery of mail with mail routes designed to best suite the needs of the USPS. ZIP Codes do not always adhere to national nor local geographic boundaries and limits.

ZIP Codes are not required to observe City, County, nor State boundaries when those boundaries interfere with a mail carriers route. To put it in perspectve, imagine being a postal employee placing mail in mailboxes down a long street. It would be highly inconvenient to stop and turn around due to an imaginary line.

ZIP Codes are Not Cities

Los Angeles city boundary vs Venice neighborhood boundary vs ZIP Code 90291 boundary

ZIP Codes have nothing to do with cities. While a ZIP Code has a city name, it is for reference to area it serves. A ZIP Code may also have names for other towns, villages, or well known neighborhoods. For example, ZIP Code 90291 is for Venice, CA. Venice is a residential, commercial, and recreational neighborhood with a statistically significant population of over 28,000 and located within the city limits of Los Angeles, CA. Even the ZIP Code boundary for 90291 do not match the neighborhood boundary for Venice, CA that is generally accepted. It is not possible to compare data for ZIP Code cities to data compiled at the city municipality level, because the boundaries that constrain each are very different.

The map to the left illustrates the disparity between boundaries. Los Angeles City Limits are shown in gray, the Venice Neighborhood Boundary in green outline, and the 90291 ZIP Code Boundary in red.

ZIP Codes that exist outside of city limits will likely have a city name of the larger area that it serves. Towns, Villages, and other well known places might be placed in the City Alias column for identification. Each record has a "MailingName" column that idicates if this name is acceptable for mailing purposes.

Do ZIP Codes Cross County Lines?

Yes. In fact, over 20% of all ZIP Codes cross county boundaries. Our ZIP Code Database indicates this with the 'Multi County' column. The Business version offers a separate table detailing all counties a ZIP Code covers. The 'primary' county is assigned to each record and is usually based on the part that receives the highest volume of mail. ZIP Codes cross state lines as well if needed, but this is much rarer. As with cities, you cannot compare data for ZIP Codes in a County to County data because the boundaries for each do not match.

Portions of data provided by and © United States Postal Service 2019. is a non-exclusive licensee of the United States Postal Service.