Summary for Dennison

So far, we found very little information about Dennison. The little that we've found leads us believe that the community is historic.<1>

We've added Dennison to our Gazetteer with the hope that we can develop more information. If you can help us with Dennison, please Contact Us.

About Dennison (Click for our profile page)

Our information shows that the community of Dennison is historic. The information below applies to the area where Dennison would have been located.

Time Zone: The area where Dennison was located is in the Mountain Time Zone (MST/MDT)

Telephone Area Code: 406

Elevation: 3,770 feet [1,149.1 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 Dennison:

Lat: 46.963800° (or 46°57'49" N)

Lon: -111.942500° (or -111°56'32" W)

USGS Topo Map: Beartooth Mountain<4>

Federal GNIS/FIPS Codes for Dennison

GNIS ID: 1789200

FIPS State / Place Code: None

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

About Lewis and Clark County

The community of Helena is the County Seat for Lewis and Clark County.

From the 2010 US Census (For more detail, see our Census Page for Lewis and Clark)

Population

Year	Population
2019 Est:<5>	69,432 (9.21% increase since 2010)
2010	63,577 (14.11% increase since 2000)
2000:	55,716

Total Area:<6> 3,497 sq. miles [9,059 km²] - of which 1.11% is water (38.89 sq. miles [100.7 km²])

Housing Units: <7> 30,180

Official Website: www.co.lewis-clark.mt.us/

Federal GNIS/FIPS Codes for Lewis and Clark

GNIS ID: 793926

FIPS State / County Code: 30 / 049

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

About Montana

From the US Census

Population

Year	Population
2019 Est:	1,070,123 (8.16% increase since 2010)
2010:	989,415 (9.67% increase since 2000)
2000:	902,195

Websites for State of Montana

Official Website: https://mt.gov/

Tourism: https://www.visitmt.com/

Parks: https://fwp.mt.gov/stateparks/

Fishing: https://fwp.mt.gov/fish

Hunting: https://fwp.mt.gov/hunt

Federal GNIS/FIPS Codes for State of Montana

GNIS ID: 767982

FIPS State: 30

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

Off-the-Road Links ...

The official website for Lewis and Clark County: www.co.lewis-clark.mt.us/

The official website for State of Montana: https://mt.gov/

Footnotes ...

<1>	We use the term 'Historic' broadly and it generally means that the community no longer exists. However, it can also mean that the community might still exist, but was significantly larger or had a more 'official' existence in the past than it does now. Unfortunately our sources of data have proven to be unreliable. If you can provide us with more specific information about Dennison, please let us know so that we can improve our accuracy.
<2>	The elevation is an estimate for the area around Dennison - it will be higher in some places and lower in others.
<3>	Longitude & latitude values may not be the geographic center of Dennison, 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 Dennison.
<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 Dennison. 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).