Summary for Waterloo

About Waterloo (Click for our profile page)

Located in: Juniata County (see below)

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

Telephone Area Codes: 717 & 223<1>

Elevation: 800 feet [243.84 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 Waterloo:

Lat: 40.288000° (or 40°17'16" N)

Lon: -77.694500° (or -77°41'40" W)

USGS Topo Map: Blairs Mills<4>

Federal GNIS/FIPS Codes for Waterloo

GNIS ID: 1190678

FIPS State / Place Code: 42 / 81496

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

About Juniata County

The community of Mifflintown is the County Seat for Juniata County.

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

Population

Year	Population
2019 Est:<5>	24,763 (0.56% increase since 2010)
2010	24,626 (7.91% increase since 2000)
2000:	22,821

Total Area:<6> 393.5 sq. miles [1,019.2 km²]

Housing Units: <7> 10,978

Official Website: www.co.juniata.pa.us/

Federal GNIS/FIPS Codes for Juniata

GNIS ID: 1209180

FIPS State / County Code: 42 / 067

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

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 Waterloo)

Off-the-Road Links ...

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

The official website for Juniata County: www.co.juniata.pa.us/

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 717 code has been Overlayed with the 223 area code. New phone numbers in the Waterloo area will be assigned with one of these codes: 717 or 223. As a result, placing a call in the Waterloo 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 Waterloo - it will be higher in some places and lower in others.
<3>	Longitude & latitude values may not be the geographic center of Waterloo, 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 Waterloo.
<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 Waterloo. 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).