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County Profiles

Population Trends 1790-2010

Decennial Census Information


By clicking the chart above, you can download an Excel spreadsheet of the 1790 through 2010 Decennial Census Population Data for Chester County and each of its 73 municipalities.

The total decennial population for Chester County in 2010 was 499,132. Comparable data on total municipal population trends from 1790 to 2010 is only available from the decennial census.

By clicking the chart to the left, you can download an Excel spreadsheet of the 1790 through 2010 Decennial Census Population Data for Chester County and each of its 73 municipalities. You can also download an Excel spreadsheet with detailed population, age, ethnicity and household information published by the 2010 decennial Census Data Profiles for Chester County and each of its 73 municipalities here.


Municipal Inventory Spreadsheet: Municipal Population Trends 1990 to 2010

You can view 2010 table of municipal population for 1990, 2000, and 2010 here.


Interactive Map: Municipal Population Trends 2000 to 2010

If you click on a municipality on the map below, a pop-up box will list the municipality's decennial Census population for 1990, 2000, and 2010, along with the percent change from 2000-2010. To zoom in on the map, press the "+" button.

Source: US Census, DP-1 Profile of General Population and Housing Characteristics: 2010, 2010 Census Summary File 1; 2010 US Census Redistricting Data (Public Law 94-171) Summary File; US Census, DP-1 Profile of General Population and Housing Characteristics: 2010, Census 2000 Summary File 1 (SF-1) 100-Percent Data; and 1990 CPH-40, 1990 Census of Population and Housing, Summary Population and Housing Characteristics, Pennsylvania, Table 8.


Detailed Analysis Tables: Municipal Population Trends 2000 to 2010

From 2010 to 2010, the 10 municipalities with greatest population change by percent and the 10 municipalities with the least population change by percent were:

Largest/Smallest: Percent of Population Change 2000-2010
County/ Municipality Change* 2000-2010 % of County Change*
Chester County 65,631 100.0%
The 10 Municipalities with the Largest Increases
Upper Uwchlan Township 4,377 6.7%
East Nottingham Township 3,134 4.8%
New Garden Township 2,901 4.4%
Penn Township 2,552 3.9%
East Fallowfield Township 2,292 3.5%
Coatesville City 2,262 3.4%
London Grove Township 2,210 3.4%
East Coventry Township 2,070 3.2%
East Caln Township 1,981 3.0%
West Caln Township 1,960 3.0%
Total 25,739 39.2%
The 10 Municipalities with the Smallest Increases
West Nottingham Township 88 0.1%
West Fallowfield Township 81 0.1%
Spring City Borough 18 0.0%
East Nantmeal Township 16 0.0%
West Sadsbury Township 0 0.0%
Birmingham Township Loss N/A
West Marlborough Township Loss N/A
Warwick Township Loss N/A
Malvern Borough Loss N/A
Modena Borough Loss N/A
Total 203 0.3%

Sources: U.S. Census Bureau, Census 2000, & 2010 Redistricting Data (Public Law 94-171) Summary File.
Notes: *2010 County and Thornbury Twp. population revised as of January 24 2013.


From 2000 to 2010, the population change by numerical count of the boroughs and the City of Coatesville was:

Urbanized/Non-urbanized: Percent of Population Change 2000-2010
County/ Municipality Change* 2000-2010 % of County Change
Chester County 65,631 100.0%
Atglen Borough 189 0.3%
Avondale Borough 157 0.2%
Coatesville City 2,262 3.4%
Downingtown Borough 302 0.5%
Elverson Borough 266 0.4%
Honey Brook Borough 426 0.6%
Kennett Square Borough 799 1.2%
Malvern Borough -61 -0.1%
Modena Borough -75 -0.1%
Oxford Borough 762 1.2%
Parkesburg Borough 220 .03%
Phoenixville Borough 1,652 2.5%
South Coatesville Borough 306 0.5%
Spring City Borough 18 0.0%
West Chester Borough 600 0.9%
West Grove Borough 202 0.3%
Total 8,025 12.2%
All 57 Townships Combined 57,606 87.8%

Sources: U.S. Census Bureau, Census & 2010 Redistricting Data (Public Law 94-171) Summary File.
Notes: *2010 County, Thornbury Twp. population revised as of January 24, 2013, and Census 2000, DP-1 General Demographic profile.


From 1970 to 2010, the regional population by numerical county of southeastern Pennsylvania was:

National/Regional: Percent of Population Change 1970-2010
State / County Census 1970 Census 1980 Census 1990 Census 2000 Census 2010 Change 2000-2010 % of PA Change
United States 203,211,926 226,545,805 248,718,302 281,424,603 308,745,538 27,320,935 N/A
Pennsylvania 11,800,766 11,864,720 11,882,842 12,281,054 12,702,379 421,325 100.0%
Berks County 296,382 312,509 336,523 373,638 411,442 37,804 9.0%
Bucks County 416,728 479,180 541,174 597,635 625,249 27,614 6.6%
Chester County 277,746 316,660 376,396 433,501 498,886 65,385 15.5%
Delaware County 603,456 555,029 547,651 551,974 558,979 7,005 1.7%
Lancaster County 320,079 362,346 422,822 470,658 519,445 48,787 11.6%
Montgomery County 624,080 643,371 678,193 748,987 799,874 50,887 12.1%
Philadelphia County 1,949,996 1,688,210 1,585,577 1,517,550 1,526,006 8,456 2.0%
Total 4,488,467 4,357,305 4,488,336 4,693,943 4,939,881 245,938 58.4%

Sources: U.S. Census Bureau, Pennsylvania: 2010 Population and Housing Units Counts, 2010 Census of Population and Housing, Table 4. Population and Housing Units: 1970 to 2010, August 2012 and United States
Summary: 2010, Population and Housing Unit Counts, 2010 Census of Population and Housing, Table 7. Population by Urban and Rural and Size of Place Based on Current Urban Definition: 1990 to 2010; 1950–1990 Urban Definition: 1950 to 1990; and Pre-1950 Urban Definition: 1790 to 1950, September 2012.
Note: For 2000 to 2010, Pennsylvania accounted for 1.5 % of the total increase in the U.S. population.