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 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 number 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 Westport: 618287

GNIS ID for Bristol County: 606929

GNIS ID for Massachusetts: 606926

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 Westport:

Place (Community) Code:	77570
State Code:	25 (Massachusetts)
County Code:	005 (Bristol 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:	25/77570
State/County Code:	25/005

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 Massachusetts:	25		606926
Bristol County:	25/005		606929
Westport:	25/77570		618287

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

Lat:   41° 35' 0"   (or 41.58°)

Lon:   -71° 4' 58"   (or -71.08°)  

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

Lat:   41° 34' 51"   (or 41.58°)

Lon:   -71° 4' 54"   (or -71.08°)  

The map point defined by the Census Bureau lies 979 feet 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:   41° 36' 14"   (or 41.6°)

Lon:   -71° 4' 55"   (or -71.08°)  

The GPS location given for the 2000 Census lies 8,487 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. Westport is located in Region #1 (the Northeast Region).

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

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

The Federal Emergency Management Agency (FEMA) has created ten Management Regions. Westport 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 Westport, it does identify addresses that are in (or near) Westport. 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 Westport: 02790<3>

Referenced GNIS Records ...

GNIS ID #618287   (Name of Record: Town of Westport)

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: Bristol

Map Name: Head of Westport

Lat: 41.5834367       Lon: -71.0828201  

Elev: 22 ft.

Referenced FIPS Records ...

FIPS Code: 25/77570   (Place Name: Westport (Town of))

County: Bristol     (FIPS State/County: 25/005)

Class: T1

MSA Code: 6480

Off-the-Road Links ...

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

The official website for State of Massachusetts: https://www.mass.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)