Census Data for Rose Valley
Population ...
The most recent Census Estimate<1> was for 2019 and it gave Rose Valley a population of 952 people.
The last Decennial Census<2> was in 2010, which gave Rose Valley a population of 913 people.
The community of Rose Valley is located in Delaware County. The 2010 Census gave Delaware County; a population of 558,981 people. This means that Rose Valley had 0.16% of the county's total population, making it Delaware's 26th 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 Rose Valley has a total area of 0.73 square miles [1.9 km²].
Delaware County has a land area of 183.8 square miles [476.2 km²]. At 0.73 square miles [1.9 km²], Rose Valley has 0.4% of the county's total land area.
- Continue Reading ...
- When the Census Bureau conducts a census for a community like Rose Valley, 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 Rose Valley reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Rose Valley 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° 53' 41" (or 39.89°)
- Lon: -75° 23' 6" (or -75.39°)
- 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, Rose Valley had 372 Housing Units<3> and with its population of 913 people, this averages 2.45 people per Housing Unit.
- Continue Reading ...
- The 2010 Census shows Rose Valley had a land area of 0.73 square miles [1.9 km²]. This translates to 508 Housing Units per square mile [196.2 housing units/km²].
- From the Census of 2000: Rose Valley had 351 Housing Units, a population of 944 people and a land area of 0.71 square miles [1.8 km²]. This gives a density of 2.69 people per Housing Unit and 495.6 Housing Units per square mile [191.3 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 Rose Valley and you need to be careful when comparing numbers 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 ...
Rose Valley is located in Delaware County<4>.
The county had a population of 558,981 people at the 2010 Census. With it's population of 913 people, Rose Valley represented 0.16% of the county's total.
In addition, where the community of Rose Valley has a population density of 1,247 people per square mile [481.6 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 Rose Valley, 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 Rose Valley. 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 Rose Valley 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 Rose Valley, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Rose Valley.
- Continue Reading ...
- For the 2010 Census, the location was given as:
- Lat: 39.894749° (or 39°53'41" N)
- Lon: -75.385180° (or -75°23'6" W)
- For the 2000 Census, the location given was:
- Lat: 39.895375° (or 39°53'43" N)
- Lon: -75.385710° (or -75°23'8" W)
- The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 272.2 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 (#1215194) to Rose Valley. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Rose Valley. The GNIS point has been mapped to the latitude/longitude:
- Lat: 39.895390° (or 39°53'43" N)
- Lon: -75.384915° (or -75°23'5" W)
- The GPS location given for the 2010 Census lies 245.2 feet to the south<6> of the point given by the GNIS for Rose Valley. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Rose Valley.
Miscellaneous Information for Rose Valley ...
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 Rose Valley:
- 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: 66192 (Rose Valley)
- State & County Code: 42/045 (Pennsylvania / Delaware County)
- State & Place Code: 42/66192 (Pennsylvania / Rose Valley)
- Misc. Census Codes ...
- Rose Valley 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 Rose Valley.
Off-the-Road Links ...
Unfortunately, we don't know of a website for Rose Valley. 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 Commonwealth 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 213 degrees and a distance of 272.2 feet. |
| <6> | The calculated bearing (or angle) to the GNIS point is 162 degrees and a distance of 245.2 feet. |