Learn About
The Commemorative
Quarter for
Tennessee

Summary for Erwin

About Erwin (Click for our profile page)

Located in: Unicoi County (see below)

Time Zone: Erwin lies in the Eastern Time Zone (EST/EDT)

Telephone Area Codes: 423 & 729<1>

ZIP Code: 37650<2>

Elevation: 1,730 feet [527.3 m] above sea level<3>

From the 2010 US Census (For more detail, see our Census Page for Erwin)

Population

Year	Population
2019 Est:<4>	5,921 (2.89% decrease since 2010)
2010:	6,097 (8.68% increase since 2000)
2000:	5,610

Total Area:<5> 4.04 sq. miles [10.5 km²]

Housing Units:<6> 2,909

Websites for Erwin

Chamber of Commerce: www.unicoicounty.org/

GPS Coordinates (Latitude/Longitude)<7>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Erwin:

Lat: 36.145500° (or 36°8'43" N)

Lon: -82.411600° (or -82°24'41" W)

USGS Topo Map: Erwin<8>

Federal GNIS/FIPS Codes for Erwin

GNIS ID: 2406459

FIPS State / Place Code: 47 / 24360

(For more about Federal Codes, see our Misc Page for Erwin)

About Unicoi County

The town of Erwin is the County Seat for {Unicoi County}.

From the 2010 US Census (For more detail, see our Census Page for Unicoi)

Population

Year	Population
2019 Est:	17,883 (2.19% decrease since 2010)
2010	18,284 (3.49% increase since 2000)
2000:	17,667

Total Area: 186.5 sq. miles [483 km²]

Housing Units: 8,830

Official Website: https://unicoicountytn.com/

Federal GNIS/FIPS Codes for Unicoi

GNIS ID: 1648582

FIPS State / County Code: 47 / 171

(For more about Federal Codes, see our Misc Page for Erwin)

About Tennessee

From the US Census

Population

Year	Population
2019 Est:	6,830,325 (7.63% increase since 2010)
2010:	6,346,105 (11.54% increase since 2000)
2000:	5,689,283

Websites for State of Tennessee

Official Website: https://www.tn.gov/

Tourism: https://www.tnvacation.com/

Parks: https://tnstateparks.com/

Fishing: https://www.tn.gov/twra/fishing.html

Hunting: https://www.tn.gov/twra/hunting.html

Federal GNIS/FIPS Codes for State of Tennessee

GNIS ID: 1325873

FIPS State: 47

(For more about Federal Codes, see our Misc Page for Erwin)

Footnotes ...

<1>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 423 code has been Overlayed with the 729 area code. New phone numbers in the Erwin area will be assigned with one of these codes: 423 or 729. As a result, placing a call in the Erwin area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a town (such as Erwin). When looking for a ZIP Code, whether Erwin or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<3>	The elevation is an estimate for the area around Erwin - it will be higher in some places and lower in others.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Erwin. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<7>	Longitude & latitude values may not be the geographic center of Erwin, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<8>	Name of the USGS 7.5 Minute topographic map which includes Erwin.