Miscellaneous Information for Altadena ...
The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has referenced one (or more) of the following identifiers when referring to either Los Angeles County or the community of Altadena:
The GNIS Codes ...
The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Altadena:
GNIS ID for Altadena: 1652662
GNIS ID for Los Angeles County: 277283
GNIS ID for California: 1779778
The FIPS Codes ...
An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
State Code: 06 (California)
County Code: 037 (Los Angeles County)
Place Code: 01290 (Altadena)
State & County Code: 06/037 (California / Los Angeles County)
State & Place Code: 06/01290 (California / Altadena)
Misc. Census Codes ...
Altadena is located in Census Region #4 (the West Region) and Division #9 (the Pacific Division).
US Postal Service ZIP Codes ...
While some people have used ZIP codes to identify a community, the ZIP codes were actually created to make mail delivery more efficient by grouping addresses together. Although a ZIP Code doesn't specifically identify a community like Altadena, they do identify addresses that are in (or near) the community. It's important to remember that the boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes.
Our list of ZIP codes for Altadena : & .<4>
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 Altadena.