Census Data for Aldan
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Aldan a population of 4,152 people.
The last Decennial Census<2> was in 2010, which gave Aldan a population of 4,152 people.
The community of Aldan is located in Delaware County. The 2010 Census gave Delaware County; a population of 558,979 people. This means that Aldan had 0.74% of the county's total population, making it Delaware's 15th most populous community.
At the same time, Pennsylvania had a population of 12,702,379 people, meaning that Aldan had 0.03% of the total population of Pennsylvania - making it the state's 241st most populous community.
Area ...
The 2010 Census shows that the sampling area for Aldan has a total area of 0.6 square miles [1.5 km²].
Delaware County has a land area of 183.8 square miles [476.2 km²]. At 0.6 square miles [1.5 km²], Aldan has 0.32% of the county's total land area.
- Continue Reading ...
- When the Census Bureau conducts a census for a community like Aldan, 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 Aldan reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Aldan 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° 55' 20" (or 39.92°)
- Lon: -75° 17' 17" (or -75.29°)
- 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, Aldan had 1,824 Housing Units<3> and with its population of 4,152 people, this averages 2.28 people per Housing Unit.
- Continue Reading ...
- The 2010 Census shows Aldan had a land area of 0.6 square miles [1.5 km²]. This translates to 3,055 Housing Units per square mile [1,179 housing units/km²].
- From the Census of 2000: Aldan had 1,817 Housing Units, a population of 4,313 people and a land area of 0.6 square miles [1.5 km²]. This gives a density of 2.37 people per Housing Unit and 3,048 Housing Units per square mile [1,176 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 Aldan and you need to be careful when comparing results between the censuses. More information about the nature of these the changes can be found in the section called Census-to-Census Observations ... (see below).
Delaware County ...
Aldan is located in Delaware County<4>.
The county had a population of 558,979 people at the 2010 Census. With it's population of 4,152 people, Aldan represented 0.74% of the county's total.
In addition, where the community of Aldan has a population density of 6,954 people per square mile [2,685 people/km²], Delaware County averages 3,040 people per square mile [1,173 people/km²].
For more information, please visit our Census Page for Delaware County.
Census-to-Census Observations ...
Introduction ...
When the Census Bureau takes a census count (or enumeration) for Aldan, 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 Aldan. 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 Aldan 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 Aldan, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Aldan.
- Continue Reading ...
- For the 2010 Census, the location was given as:
- Lat: 39.922410° (or 39°55'20" N)
- Lon: -75.288119° (or -75°17'17" W)
- For the 2000 Census, the location given was:
- Lat: 39.920691° (or 39°55'14" N)
- Lon: -75.286714° (or -75°17'12" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 739 feet to the northwest<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 (#1215173) to Aldan. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Aldan. The GNIS point has been mapped to the latitude/longitude:
- Lat: 39.923724° (or 39°55'25" N)
- Lon: -75.285741° (or -75°17'8" W)
- The GPS location given for the 2010 Census lies 819 feet to the southwest<6> of the point given by the GNIS for Aldan. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Aldan.
Miscellaneous Information for Aldan ...
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 Delaware County or the community of Aldan:
- 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: 045 (Delaware County)
- Place Code: 00676 (Aldan)
- State & County Code: 42/045 (Pennsylvania / Delaware County)
- State & Place Code: 42/00676 (Pennsylvania / Aldan)
- Misc. Census Codes ...
- Aldan 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 Aldan.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Aldan. If you can help, please contact us through our Feedback Page.
The official website for Delaware County: www.co.delaware.pa.us/
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 Delaware, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <5> | The calculated bearing (or angle) to the 2010 Census location is 32 degrees and a distance of 739 feet. |
| <6> | The calculated bearing (or angle) to the GNIS point is 125 degrees and a distance of 819 feet. |