Summary for Shamrock

About Shamrock (Click for our profile page)

Located in: Northumberland County (see below)

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

Telephone Area Codes: 570 & 272<1>

Elevation: 560 feet [170.69 m] above sea level<2>

GPS Coordinates (Latitude/Longitude)<3>

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

Lat: 40.860900° (or 40°51'39" N)

Lon: -76.584700° (or -76°35'4" W)

USGS Topo Map: Shamokin<4>

Federal GNIS/FIPS Codes for Shamrock

GNIS ID: 1204623

FIPS State / Place Code: 42 / 69638

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

About Northumberland County

The community of Sunbury is the County Seat for Northumberland County.

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

Population

Year	Population
2019 Est:<5>	90,843 (3.66% decrease since 2010)
2010	94,293 (0.28% decrease since 2000)
2000:	94,556

Total Area:<6> 477.5 sq. miles [1,236.8 km²] - of which 4.01% is water (19.16 sq. miles [49.6 km²])

Housing Units: <7> 45,125

Official Website: www.northumberlandco.org/

Federal GNIS/FIPS Codes for Northumberland

GNIS ID: 1209186

FIPS State / County Code: 42 / 097

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

About Pennsylvania

From the US Census

Population

Year	Population
2019 Est:	12,798,883 (0.76% increase since 2010)
2010:	12,702,379 (3.43% increase since 2000)
2000:	12,281,054

Websites for Commonwealth of Pennsylvania

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

Tourism: https://visitpa.com/

Parks: https://www.dcnr.pa.gov/StateParks/

Fishing: https://www.fishandboat.com/

Hunting: https://www.pgc.pa.gov/HuntTrap/

Federal GNIS/FIPS Codes for Commonwealth of Pennsylvania

GNIS ID: 1779798

FIPS State: 42

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

Off-the-Road Links ...

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

The official website for Northumberland County: www.northumberlandco.org/

The official website for Commonwealth of Pennsylvania: https://www.pa.gov/

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 570 code has been Overlayed with the 272 area code. New phone numbers in the Shamrock area will be assigned with one of these codes: 570 or 272. As a result, placing a call in the Shamrock area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	The elevation is an estimate for the area around Shamrock - it will be higher in some places and lower in others.
<3>	Longitude & latitude values may not be the geographic center of Shamrock, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<4>	Name of the USGS 7.5 Minute topographic map which includes Shamrock.
<5>	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.
<6>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Shamrock. 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.
<7>	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).