Learn About
The Commemorative
Quarter for
Pennsylvania
 
The Commemorative Quarter for Pennsylvania

The 2000 Census showed that Delaware County had a population of 550,864 people. This represented 4.49% of the total population of Pennsylvania, making it the state's 5th most populous county (out of 67 counties).

From the Census Estimates for 2009<1>, Delaware had a population of 558,028 people. This is an increase of 1.3% since the 2000 Census.

The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.

YearPopulationChange
Since 2000
Year-to-Year Change
2010558,979+1.47%+0.17% since 2009
2009558,028+1.3%+0.32% since 2008
2008556,251+0.98%+0.22% since 2007
2007555,019+0.75%+0.24% since 2006
2006553,664+0.51%+0.28% since 2005
2005552,126+0.23% 
2004551,681+0.15%-0.12% since 2003
2003552,355+0.27% 
2002552,588+0.31% 
2001552,663+0.33%+0.33% since 2000
---   
2000550,864The Last Census

Delaware County had 216,978 Housing Units<2> at the time of the 2000 Census.

The 2000 Census shows that Delaware County has a total area<3> of 190.7 square miles [494 km²]. Of this total, 184.2 square miles [477.1 km²] of the area is land, with the balance (3.42%) being water (6.53 square miles [16.91 km²]).

Using the above population and land area values, Delaware County had a population density of 2,990 people per square mile [1,154 people/km²], making it the state's 2nd most densely populated county (out of 67 counties).

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Delaware County is available. The QuickFact also contains a comparison between Delaware and the state of Pennsylvania.

Click here for the Delaware County QuickFact (QF-42045).

Below are some of the communities that are located in Delaware County:

CommunityCensus
QuickFact
Population
(2009 Est)
Population
(2000 Census)
Change in
  Population
ChesterQF-421320837,10136,8540.67%
YeadonQF-428696811,43611,762-2.77%
LansdowneQF-424144010,71511,044-2.98%
DarbyQF-42181529,96310,299-3.26%
BrookhavenQF-42090807,9837,985
GlenoldenQF-42297207,2507,476-3.02%
Ridley ParkQF-42648327,0297,196-2.32%
FolcroftQF-42264086,8776,978-1.45%
Clifton HeightsQF-42142646,5806,779-2.94%
Prospect ParkQF-42627926,5206,594-1.12%
SwarthmoreQF-42756486,1346,170-0.58%
NorwoodQF-42556645,8125,985-2.89%
MediaQF-42484805,4315,533-1.84%
Sharon HillQF-42697525,3525,468-2.12%

Below are the counties that adjoin and form the boundaries of Delaware County. A link to their specific Census QuickFact has been provided.

CountyCensus
QuickFact
DirectionPopulation
(2009 Est.)
Population
(2000 Census)
Change in
Population
New Castle (DE)QF-10003   SW534,634500,2656.87%
Gloucester (NJ)QF-34015   SE289,920254,67313.84%
ChesterQF-42029   W498,894433,50115.08%
MontgomeryQF-42091   N782,339750,0974.3%
PhiladelphiaQF-42101   NE1,547,2971,517,5501.96%

Other Roadside Stops ...

About Pennsylvania

Find a Community in Pennsylvania

Off-the-Road Links ...

U.S. Census Bureau
Census QuickFact for Delaware County

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census.

- Return to Citation

<2>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).

- Return to Citation

<3>The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Delaware. The value given by the Census Bureau reflects their statistical (or sampling) requirements.

- Return to Citation

<4>All Quarter-dollar coin images from the United States Mint.

- Return to Citation