Miscellaneous Information

Various Identification Codes ...

GNIS Codes ...

The U.S. Board on Geographic Names (BGN) was created to address the problems caused by spelling and naming variations. The BGN will usually recognize an existing name or, when necessary, chose a new name for a geographic feature (such as a mountain, lake, river, stream, city, town, village, dam, bridge, etc).

The BGN names are kept in a database called the Geographic Names Information System (GNIS) and it is the official Federal repository. The GNIS is operated and maintained by the U.S. Geological Survey (USGS).

A unique and permanent code has been assigned for each name in the GNIS database. These names and identifiers are definitive and it is intended that they are to be used by all departments of the Federal Government:

GNIS ID for Mammoth Lakes: 2412936

GNIS ID for Mono County: 277290

GNIS ID for California: 1779778

FIPS Codes ...

In a past effort, various federal agencies worked together to create a set of codes with a purpose similar to the GNIS codes. These codes are called the Federal Information Processing Standard (or the FIPS 55 codes). Although they are still used by some organizations, the FIPS codes are obsolete and will ultimately be replaced by the GNIS codes.

The following FIPS codes apply to Mammoth Lakes:

Place (Community) Code:	45358
State Code:	06 (California)
County Code:	051 (Mono County)

Since the Place and County FIPS codes are not unique and can be repeated in other States, it's necessary to combine the State code with the Place and County FIPS codes to uniquely identify them - for example:

State/Place Code:	06/45358
State/County Code:	06/051

As already mentioned, the FIPS codes are to be replaced by the GNIS codes. The following reflect those changes:

	FIPS Code	translates to	GNIS Code
State of California:	06		1779778
Mono County:	06/051		277290
Mammoth Lakes:	06/45358		2412936

GPS Location - GNIS vs Census ...

An important aspect of the GNIS code is that it assigns a GPS location (the latitude/longitude) to the geographic feature. This location is simply a point on the map and does not represent the size or shape of the feature. In the case of Mammoth Lakes, it is a point within Mammoth Lakes that might be a post office, the city hall or simply an intersection - the point should really be considered arbitrary and only indicating a general location.

For Mammoth Lakes, the GNIS GPS location is given as:

Lat:   37° 37' 38"   (or 37.63°)

Lon:   -118° 59' 23"   (or -118.99°)  

Determined by its statistical needs, the Census Bureau has defined a sampling area for Mammoth Lakes - this area also contains a map point. As with the GNIS code, the location of the Census point should be considered as being arbitrary within the sampling area.

For Mammoth Lakes, the Census 2010 GPS location is given as:

Lat:   37° 36' 31"   (or 37.61°)

Lon:   -118° 58' 15"   (or -118.97°)  

The map point defined by the Census Bureau lies 8,673 feet to the southeast<1> of the point given by the GNIS (see above).

You might note that the GPS location given for the 2010 Census is different than the location that was specified by the 2000 Census:

Lat:   37° 38' 12"   (or 37.64°)

Lon:   -118° 58' 44"   (or -118.98°)  

The GPS location given for the 2000 Census lies 10,512 feet to the north<2> of the point given by the 2010 Census.

Regional Codes ...

For statistical purposes, the US Census Bureau has divided the country into four Regions. Mammoth Lakes is located in Region #4 (the West Region).

In turn, the US Census Bureau has further divided each Region into Divisions. Mammoth Lakes is located in Division #9 (the Pacific Division).

The Office of Management and Budget (OMB) has created ten Federal Regions. Mammoth Lakes is located in Region IX (Region 9).

The Federal Emergency Management Agency (FEMA) has created ten Management Regions. Mammoth Lakes is located in Region IX (Region 9).

ZIP Codes ...

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 town like Mammoth Lakes, it does identify addresses that are in (or near) Mammoth Lakes. It's important to remember that the boundaries of a ZIP Code are defined by the needs of the USPS and can be changed, re-assigned or overlapped with other ZIP Codes.

The ZIP code for Mammoth Lakes: 93546<3>

Referenced GNIS Records ...

GNIS ID #1659042   (Name of Record: Mammoth Lakes)

Class: populated place

A place or area having clustered or scattered buildings and a permanent population (such as a city, settlement, town or village). The boundaries may or may not coincide with the perceived population.

A 'populated place' record may have a corresponding 'census' or 'civil' record. The information contained in the 'populated place' record applies only to the class and should not be confused with either the 'census' and 'civil' classes.

County: Mono

Map Name: Old Mammoth

Lat: 37.648546       Lon: -118.972079  

Elev: 2402 ft.

GNIS ID #2412936   (Name of Record: Town of Mammoth Lakes)

Class: civil

A political division formed for administrative purposes (such as a borough, county, incorporated place, parish, town or township).

A 'civil' record may have a corresponding 'census' or 'populated place' record. The information contained in the 'civil' record applies only to the class and should not be confused with either the 'census' and 'populated place' classes.

County: Mono

Map Name: Old Mammoth

Lat: 37.6272465       Lon: -118.98994  

Elev: 2461 ft.

Referenced FIPS Records ...

FIPS Code: 06/45358   (Place Name: Mammoth Lakes)

County: Mono     (FIPS State/County: 06/051)

Class: C1

Identifies an incorporated place (ie- Mammoth Lakes) that does not serve as a primary county division - or in other words, it is included in and is part of a primary county division (ie- Mono County).

GSA Code: 2055

MRF Code: 1687

Off-the-Road Links ...

The official website for Mammoth Lakes: www.ci.mammoth-lakes.ca.us/

The official website for Mono County: www.monocounty.ca.gov/

The official website for State of California: https://www.ca.gov/

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)

The official website of the U.S. Census Bureau

The official website of the U.S. Office of Management and Budget (OMB)

The official website of the U.S. Federal Emergency Management Agency (FEMA)