Delaware County Population 2017

Delaware County's estimated population is 563,402 with a growth rate of 0.01% in the past year according to the most recent United States census data. Delaware County is the 5th largest county in Pennsylvania.

Year Population Growth Growth Rate
2016563,402810.01%
2015563,3217390.13%
2014562,5821,1430.20%
2013561,4396050.11%
2012560,8341,7400.31%
2011559,094-11-0.00%
2010559,10511,4542.09%
1990547,651-7,356-1.33%
1980555,007-45,028-7.50%
1970600,03546,8818.48%
1960553,154138,92033.54%
1950414,234103,47833.30%
1940310,75630,49210.88%
1930280,264107,18061.92%
1920173,08455,17846.80%
1910117,90623,14424.42%
190094,76220,07926.89%
189074,68318,58233.12%
188056,10116,69842.38%
187039,4038,80628.78%
186030,5975,91823.98%
185024,6794,88824.70%
184019,7912,46814.25%
183017,3232,51316.97%
182014,810760.52%
181014,7341,92515.03%
180012,8093,32635.07%
17909,4830.00%

Delaware County Population Growth

Population Data via

Delaware County Race Data

Race Population Percentage
White398,08970.66%
Black or African American120,99221.48%
Asian31,3195.56%
Two or More Races11,6052.06%
American Indian and Alaska Native1,0900.19%
Native Hawaiian and Other Pacific Islander2260.04%

Delaware County Population Pyramid

0k5k10k15k20kDelaware County Male Population0k5k10k15k20kDelaware County Female Population

Population of Cities in Delaware County

City 2010 Census 2016 Estimated Growth Growth Rate
Philadelphia15260061567872418662.74%
Chester3397233988160.05%
Darby1069010654-36-0.34%
Lansdowne1062010606-14-0.13%
Brookhaven80068066600.75%
Glenolden7153715300.00%
Ridley Park70037023200.29%
Clifton Heights66526689370.56%
Folcroft66066621150.23%
Prospect Park64546472180.28%
Swarthmore61946239450.73%
Norwood58905880-10-0.17%
Sharon Hill56975685-12-0.21%
Media53275350230.43%
Morton26692690210.79%
Chester Heights25312623923.63%
Marcus Hook23972389-8-0.33%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990