Census Data for Lone Tree
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Lone Tree a population of 13,482 people.
The last Decennial Census<2> was in 2010, which gave Lone Tree a population of 10,218 people.
The city of Lone Tree is located in Douglas County. The 2010 Census gave Douglas County; a population of 285,465 people. This means that Lone Tree had 3.58% of the county's total population, making it Douglas' 4th most populous community.
At the same time, Colorado had a population of 5,029,196 people, meaning that Lone Tree had 0.2% of the total population of Colorado - making it the state's 43rd most populous community.
Area ...
The 2010 Census shows that the sampling area for Lone Tree has a total area of 9.57 square miles [24.8 km²].
Douglas County has a land area of 840 square miles [2,176.2 km²]. At 9.57 square miles [24.8 km²], Lone Tree has 1.14% of the county's total land area.
- Continue Reading ...
- When the Census Bureau conducts a census for a city like Lone Tree, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the city.
- Things like population, area and housing for Lone Tree reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Lone Tree might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
- Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:
- Lat: 39° 31' 50" (or 39.53°)
- Lon: -104° 52' 15" (or -104.87°)
- More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).
Housing Units ...
At the time of the 2010 Census, Lone Tree had 4,226 Housing Units<3> and with its population of 10,218 people, this averages 2.42 people per Housing Unit.
- Continue Reading ...
- The 2010 Census shows Lone Tree had a land area of 9.57 square miles [24.8 km²]. This translates to 441.5 Housing Units per square mile [170.5 housing units/km²].
- From the Census of 2000: Lone Tree had 1,906 Housing Units, a population of 4,873 people and a land area of 1.72 square miles [4.5 km²]. This gives a density of 2.56 people per Housing Unit and 1,105 Housing Units per square mile [427 housing units/km²].
- Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 Census and the 2000 Census, there were changes in the sampling area for Lone Tree and you need to be careful when comparing numbers between the censuses. More information about the changes can be found in the section called Census-to-Census Observations ... (see below).
Douglas County ...
The community of Lone Tree is located in Douglas County<4>.
The county had a population of 285,465 people at the 2010 Census. With it's population of 10,218 people, Lone Tree represented 3.58% of the county's total.
In addition, where the city of Lone Tree has a population density of 1,067 people per square mile [412.2 people/km²], Douglas County averages 339.7 people per square mile [131.2 people/km²].
For more information, please visit our Census Page for Douglas County.
Census-to-Census Observations ...
Introduction ...
When the Census Bureau takes a census count (or enumeration) for Lone Tree, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Lone Tree. It's important to note that from one Census to the next, the shape and location of the polygon can change.
- Continue Reading ...
- Although we don't have specific information about the shape of the polygon for Lone Tree or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
- If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.
Location ...
While generally coinciding with the GPS location (latitude/longitude) of Lone Tree, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Lone Tree.
- Continue Reading ...
- For the 2010 Census, the location was given as:
- Lat: 39.530592° (or 39°31'50" N)
- Lon: -104.870985° (or -104°52'15" W)
- For the 2000 Census, the location given was:
- Lat: 39.548947° (or 39°32'56" N)
- Lon: -104.892546° (or -104°53'33" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 9,029 feet to the southeast<5> of the location that was used in the 2000 Census.
- The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#2410864) to Lone Tree. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Lone Tree. The GNIS point has been mapped to the latitude/longitude:
- Lat: 39.530443° (or 39°31'49" N)
- Lon: -104.870930° (or -104°52'15" W)
- The GPS location given for the 2010 Census lies 56.5 feet to the north<6> of the point given by the GNIS for Lone Tree. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Lone Tree.
Miscellaneous Information for Lone Tree ...
The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Douglas County or the city of Lone Tree:
- The GNIS Codes ...
- The FIPS Codes ...
- An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
- State Code: 08 (Colorado)
- County Code: 035 (Douglas County)
- Place Code: 45955 (Lone Tree)
- State & County Code: 08/035 (Colorado / Douglas County)
- State & Place Code: 08/45955 (Colorado / Lone Tree)
- Misc. Census Codes ...
- Lone Tree is located in Census Region #4 (the West Region) and Division #8 (the Mountain Division).
For more information about the various Federal identification codes, please visit our Misc Page for Lone Tree.
Off-the-Road Links ...
The official website for Lone Tree: www.cityoflonetree.com/
The official website for Douglas County: www.douglas.co.us/
The official website for State of Colorado: https://www.colorado.gov/
The official website of the U.S. Census Bureau
The official website of the U.S. Board on Geographic Names (BGN)
The official website of the U.S. Geological Survey (USGS)
Footnotes ...
| <1> | 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. |
| <2> | Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020. |
| <3> | 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). |
| <4> | If you're interested in how the shape of Colorado's counties, including Douglas, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <5> | The calculated bearing (or angle) to the 2010 Census location is 222 degrees and a distance of 9,029 feet. |
| <6> | The calculated bearing (or angle) to the GNIS point is 15 degrees and a distance of 56.5 feet. |