Census Data for Ajo

As far as we can tell, Ajo has not been included in past Census counts, so there is no population information for this community.

While we don't have census information for Ajo, you might be interested in some nearby communities where we do:

Pima County ...

Ajo is located in Pima County<1>.

For more information, please visit our Census Page for Pima County.

Miscellaneous Information for Ajo ...

The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Pima County or the community of Ajo:

• The GNIS Codes ...
  • The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Ajo:
  • GNIS ID for Ajo: 538
  • GNIS ID for Pima County: 25446
  • GNIS ID for State of Arizona: 1779777

• The FIPS Codes ...
  • An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
  • State Code: 04 (Arizona)
  • County Code: 019 (Pima County)
  • Place Code: 00870 (Ajo)
  • State & County Code: 04/019 (Arizona / Pima County)
  • State & Place Code: 04/00870 (Arizona / Ajo)

• Misc. Census Codes ...
  • Ajo is located in Census Region #4 (the West Region) and Division #8 (the Mountain Division).

• The US Postal Service ZIP Code ...
  • While some people have used a ZIP code to identify a community, the purpose of the ZIP code was to make mail delivery more efficient by grouping addresses together. Although the ZIP Code doesn't specifically identify a community like Ajo, it does identify addresses that are in (or near) Ajo. It's important to remember that the boundaries of a ZIP Code can be changed, re-assigned or overlapped with other ZIP Codes.
  • The ZIP code for Ajo:85321<2>

• Census ZCTA Codes ...
  • The US Census Bureau created statistical entities that they call ZIP Code Tabulation Areas (ZCTAs) and these ZCTAs are frequently confused with the ZIP codes that come from the US Postal Service (USPS).
  • ZCTAs were first created for the 2000 Census and at that time, they were based upon the USPS ZIP codes. While largely covering the same areas, the boundaries of a ZCTA do not necessarily match the boundaries of a postal ZIP code with the same number. For example, while a postal ZIP code can cross a county or state line, a Census ZCTA can not. They should be treated as separate entities with no correlation between them.

For more information about the various Federal identification codes, please visit our Misc Page for Ajo.