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Troy, Alabama
(Pike County)

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 The location of Troy 

Click for Interactive Map

Click for Interactive Map
(Location provided by the GNIS)
 
Click here for an interactive map for Troy
and the surrounding area.
 
 

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 numeric 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 Troy: 2405606

GNIS ID for Pike County: 161581

GNIS ID for Alabama: 1779775

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 Troy:

Place (Community) Code:  76920
State Code:  01 (Alabama)
County Code:  109 (Pike 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:  01/76920
State/County Code:  01/109

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 Alabama:    01   1779775
Pike County:    01/109   161581
Troy:    01/76920   2405606

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

Lat:   31° 48' 7"   (or 31.8°)

Lon:   -85° 57' 57"   (or -85.97°)   [Map]

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

Lat:   31° 48' 7"   (or 31.8°)

Lon:   -85° 57' 53"   (or -85.96°)   [Map]

The map point defined by the Census Bureau lies 305.5 feet to the east<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:   31° 48' 7"   (or 31.8°)

Lon:   -85° 58' 2"   (or -85.97°)   [Map]

The GPS location given for the 2000 Census lies 746 feet to the west<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. Troy is located in Region #3 (the South Region).

In turn, the US Census Bureau has further divided each Region into Divisions. Troy is located in Division #6 (the East South-Central Division).

The Office of Management and Budget (OMB) has created ten Federal Regions. Troy is located in Region IV (Region 4).

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 city like Troy, they do identify addresses that are in (or near) the city. 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.

Our list of ZIP codes for Troy : 36079, 36081 & 36082.<3>

Referenced GNIS Records ...

GNIS ID #153725   (Name of Record: Troy)

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: Pike

Map Name: Troy

Lat: 31.8087678       Lon: -85.969951   [Map]

Elev: 165


GNIS ID #2405606   (Name of Record: City of Troy)

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: Pike

Map Name: Troy

Lat: 31.8020738       Lon: -85.965898   [Map]

Elev: 165

Referenced FIPS Records ...

FIPS Code: 01/76920   (Place Name: Troy)

County: Pike     (FIPS State/County: 01/109)

Class: C1

Identifies an incorporated place (ie- Troy) 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- Pike County).

GSA Code: 3040

MRF Code: 1710

Other Roadside Stops ...

Find a Community within Alabama

About Pike County

About Alabama

Off-the-Road Links ...

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 for Troy: www.troyalabama.com/

The official website for State of Alabama: www.alabama.gov/







Footnotes ...

<1>The calculated bearing (or the angle) to the GNIS-supplied location is 269 degrees.

- Return to Citation

<2>The calculated bearing (or the angle) to the 2000 Census location is 92 degrees.

- Return to Citation

<3>When looking for a ZIP Code, whether Troy or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

- Return to Citation


For additional information, please visit our Glossary for Troy.



 
 
 

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This page was last modified: 26 Nov 2016
By John Hall