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_Dayton, Ohio Postal Code

List of all postal codes in Dayton, , United States.

Postal Code 45390
Postal Code 45400
Postal Code 45401
Postal Code 45402
Postal Code 45403
Postal Code 45404
Postal Code 45405
Postal Code 45406
Postal Code 45408
Postal Code 45409
Postal Code 45410
Postal Code 45412
Postal Code 45413
Postal Code 45414
Postal Code 45415
Postal Code 45416
Postal Code 45417
Postal Code 45418
Postal Code 45419
Postal Code 45420
Postal Code 45422
Postal Code 45423
Postal Code 45424
Postal Code 45426
Postal Code 45427
Postal Code 45428
Postal Code 45429
Postal Code 45430
Postal Code 45431
Postal Code 45432
Postal Code 45433
Postal Code 45434
Postal Code 45435
Postal Code 45437
Postal Code 45439
Postal Code 45440
Postal Code 45441
Postal Code 45448
Postal Code 45449
Postal Code 45454
Postal Code 45458
Postal Code 45459
Postal Code 45463
Postal Code 45469
Postal Code 45470
Postal Code 45475
Postal Code 45479
Postal Code 45481
Postal Code 45482
Postal Code 45490

Frequently Asked Questions

what is the zip code of Dayton, Ohio?

Dayton, Ohio Zip Code is : 45390

What is a ZIP Code and how do they work?

ZIP Codes are 5-digit numbers developed by the United States Postal Service (USPS) to represent individual post offices across the United States. A ZIP Code is just the name of the postal code system for the United States.

There are three main parts of the 5-digit ZIP Code - the national area, the region or city, and the delivery area. The United States Postal Service has segmented the country into 10 ZIP Code areas. Starting in the northeast, they are numbered 0-9.

The first digit of the ZIP Code is allocated as follows:

ZIP Codes Beginning WithStates
0Connecticut, Massachusetts, Maine, New Hampshire, New Jersey, Puerto Rico, Rhode Island, Vermont, Virgin Islands, Army Post Office Europe, Fleet Post Office Europe
1Delaware, New York, Pennsylvania
2District of Columbia, Maryland, North Carolina, South Carolina, Virginia, West Virginia
3Alabama, Florida, Georgia, Mississippi, Tennessee, Army Post Office Americas, Fleet Post Office Americas
4Indiana, Kentucky, Michigan, Ohio
5Iowa, Minnesota, Montana, North Dakota, South Dakota, Wisconsin
6Illinois, Kansas, Missouri, Nebraska
7Arkansas, Louisiana, Oklahoma, Texas
8Arizona, Colorado, Idaho, New Mexico, Nevada, Utah, Wyoming
9Alaska, American Samoa, California, Guam, Hawaii, Marshall Islands, Federated States of Micronesia, Northern Mariana Islands, Oregon, Palau, Washington, Army Post Office Pacific, Fleet Post Office Pacific

How to Read a ZIP Code?

After the first number in a ZIP Code is assigned, the USPS assigns the next two numbers according to a city. If a region has a main town or city, the USPS will often assign it the first ZIP Codes. After that, the ZIP Codes will proceed alphabetically.

The first three digits of a ZIP Code together usually indicate the sectional center facility to which that ZIP Code belongs. This facility is the mail sorting and distribution center for a zone or area. Some sectional center facilities have multiple three-digit codes assigned to them.

The fourth and fifth digits of the ZIP Code represent the area of the city or town.

What is the importance of ZIP codes?

ZIP code data is an integral part of business operations in the United States. It's an important parameter for sending mail, managing fraud detection, or researching demographic information.

What is a Zip+4 Code or What are the last four digits of a zip code?

The ZIP+4 code is used and assigned by the United States Postal Service (USPS) for routing purposes. A ZIP+4 code uses the basic five-digit code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail.