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, establish 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 identifier 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 Grand Isle: 582495

GNIS ID for Aroostook County: 581287

GNIS ID for Maine: 1779787

FIPS Codes ...

In a past effort, various federal agencies created 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 Grand Isle:

Place (Community) Code:	28555
State Code:	23 (Maine)
County Code:	003 (Aroostook 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:	23/28555
State/County Code:	23/003

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 Maine:	23		1779787
Aroostook County:	23/003		581287
Grand Isle:	23/28555		582495

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 Grand Isle, it is a point within Grand Isle 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 Grand Isle, the GNIS GPS location is given as:

Lat:   47° 18' 19"   (or 47.31°)

Lon:   -68° 9' 7"   (or -68.15°)  

Determined by its statistical needs, the Census Bureau has defined a sampling area for Grand Isle - 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 Grand Isle, the Census 2010 GPS location is given as:

Lat:   47° 15' 23"   (or 47.26°)

Lon:   -68° 8' 10"   (or -68.14°)  

The map point defined by the Census Bureau lies 3 miles to the south<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:   47° 17' 13"   (or 47.29°)

Lon:   -68° 7' 38"   (or -68.13°)  

The GPS location given for the 2000 Census lies 2 miles 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. Grand Isle is located in Region #1 (the Northeast Region).

In turn, the US Census Bureau has further divided each Region into Divisions. Grand Isle is located in Division #1 (the New England Division).

The Office of Management and Budget (OMB) has created ten Federal Regions. Grand Isle is located in Region I (Region 1).

The Federal Emergency Management Agency (FEMA) has created ten Management Regions. Grand Isle is located in Region I (Region 1).

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 community like Grand Isle, it does identify addresses that are in (or near) Grand Isle. 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 Grand Isle: 04746<3>

Referenced GNIS Records ...

GNIS ID #567029   (Name of Record: Grand Isle)

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: Aroostook

Map Name: Grand Isle

Lat: 47.3053186       Lon: -68.1519797  

Elev: 152 ft.

GNIS ID #582495   (Name of Record: Town of Grand Isle)

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: Aroostook

Map Name: Grand Isle

Lat: 47.2561523       Lon: -68.1289225  

Elev: 227 ft.

Referenced FIPS Records ...

FIPS Code: 23/28555   (Place Name: Grand Isle)

County: Aroostook     (FIPS State/County: 23/003)

Class: U6

Identifies a populated place (ie- Grand Isle) that is wholly or substantially located outside the boundaries of any incorporated place or CDP (Census Designated Place) that has an authoritative common name recognized by the U.S. Geological Survey (USGS).

GSA Code: 3350

FIPS Code: 23/28590   (Place Name: Grand Isle (Town of))

County: Aroostook     (FIPS State/County: 23/003)

Class: T1

Off-the-Road Links ...

Unfortunately, we don't know of a website for Grand Isle. If you can help, please contact us through our Feedback Page.

The official website for Aroostook County: www.aroostook.me.us/

The official website for State of Maine: https://www.maine.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)