Census Data for Duncansville
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Duncansville a population of 1,159 people.
The last Decennial Census<2> was in 2010, which gave Duncansville a population of 1,233 people.
The community of Duncansville is located in Blair County. The 2010 Census gave Blair County; a population of 127,089 people. This means that Duncansville had 0.97% of the county's total population, making it Blair's 8th most populous community.
At the same time, Pennsylvania had a population of 12,702,379 people.
Area ...
The 2010 Census shows that the sampling area for Duncansville has a total area of 0.53 square miles [1.4 km²].
Blair County has a land area of 525 square miles [1,361.8 km²]. At 0.53 square miles [1.4 km²], Duncansville has 0.1% of the county's total land area.
- Continue Reading ...
- When the Census Bureau conducts a census for a community like Duncansville, 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 community.
- Things like population, area and housing for Duncansville reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Duncansville 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: 40° 25' 34" (or 40.43°)
- Lon: -78° 25' 48" (or -78.43°)
- 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, Duncansville had 648 Housing Units<3> and with its population of 1,233 people, this averages 1.9 people per Housing Unit.
- Continue Reading ...
- The 2010 Census shows Duncansville had a land area of 0.53 square miles [1.4 km²]. This translates to 1,218 Housing Units per square mile [470.3 housing units/km²].
- From the Census of 2000: Duncansville had 610 Housing Units, a population of 1,238 people and a land area of 0.54 square miles [1.4 km²]. This gives a density of 2.03 people per Housing Unit and 1,139 Housing Units per square mile [439.9 housing units/km²].
- Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 and the 2000 Census, there were changes in the sampling area for Duncansville and you need to be careful when comparing values between the censuses. More information about these differences can be found in the section called Census-to-Census Observations ... (see below).
Blair County ...
Duncansville is located in Blair County<4>.
The county had a population of 127,089 people at the 2010 Census. With it's population of 1,233 people, Duncansville represented 0.97% of the county's total.
In addition, where the community of Duncansville has a population density of 2,317 people per square mile [894 people/km²], Blair County averages 241.7 people per square mile [93.3 people/km²].
For more information, please visit our Census Page for Blair County.
Census-to-Census Observations ...
Introduction ...
When the Census Bureau takes a census count (or enumeration) for Duncansville, 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 Duncansville. 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 Duncansville 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 Duncansville, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Duncansville.
- Continue Reading ...
- For the 2010 Census, the location was given as:
- Lat: 40.426307° (or 40°25'34" N)
- Lon: -78.430260° (or -78°25'48" W)
- For the 2000 Census, the location given was:
- Lat: 40.425072° (or 40°25'30" N)
- Lon: -78.432435° (or -78°25'56" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 753 feet to the northeast<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 (#1214941) to Duncansville. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Duncansville. The GNIS point has been mapped to the latitude/longitude:
- Lat: 40.425350° (or 40°25'31" N)
- Lon: -78.428070° (or -78°25'41" W)
- The GPS location given for the 2010 Census lies 700 feet to the northwest<6> of the point given by the GNIS for Duncansville. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Duncansville.
Miscellaneous Information for Duncansville ...
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 Blair County or the community of Duncansville:
- The GNIS Codes ...
- The FIPS Codes ...
- An earlier (and largely obsolete) identification method was called the Federal Information Processing Standard (FIPS):
- State Code: 42 (Pennsylvania)
- County Code: 013 (Blair County)
- Place Code: 20248 (Duncansville)
- State & County Code: 42/013 (Pennsylvania / Blair County)
- State & Place Code: 42/20248 (Pennsylvania / Duncansville)
- Misc. Census Codes ...
- Duncansville is located in Census Region #1 (the Northeast Region) and Division #2 (the Middle Atlantic Division).
For more information about the various Federal identification codes, please visit our Misc Page for Duncansville.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Duncansville. If you can help, please contact us through our Feedback Page.
The official website for State of Pennsylvania: https://www.pa.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 Pennsylvania's counties, including Blair, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <5> | The calculated bearing (or angle) to the 2010 Census location is 306 degrees and a distance of 753 feet. |
| <6> | The calculated bearing (or angle) to the GNIS point is 60 degrees and a distance of 700 feet. |