NOTE: THIS DATA FILE WILL CHANGE! To improve accessibility of data for all users, we will convert this file from a text format to an html table by the end of June 2024. Title: Resident Population in Chester County, PA Series ID: PACHES5POP Source: U.S. Census Bureau Release: Annual Estimates of the Population for Counties (Not a Press Release) Seasonal Adjustment: Not Seasonally Adjusted Frequency: Annual Units: Thousands of Persons Date Range: 1970-01-01 to 2023-01-01 Last Updated: 2024-03-14 1:55 PM CDT Notes: Data for "Resident Population" are estimates as of July 1. Data for 1970, 1980, 1990, and 2000 are annual census. Population estimates are updated annually using current data on births, deaths, and migration to calculate population change since the most recent decennial census. The annual time series of estimates begins with the most recent decennial census data and extends to the vintage year. Each vintage of estimates includes all years since the most recent decennial census. DATE VALUE 1970-01-01 277.746 1971-01-01 283.300 1972-01-01 284.100 1973-01-01 286.100 1974-01-01 288.000 1975-01-01 293.300 1976-01-01 297.700 1977-01-01 301.600 1978-01-01 304.400 1979-01-01 308.700 1980-01-01 316.660 1981-01-01 322.820 1982-01-01 325.773 1983-01-01 329.326 1984-01-01 334.239 1985-01-01 338.794 1986-01-01 346.953 1987-01-01 356.329 1988-01-01 366.435 1989-01-01 372.077 1990-01-01 377.832 1991-01-01 382.247 1992-01-01 386.337 1993-01-01 391.440 1994-01-01 395.725 1995-01-01 402.908 1996-01-01 408.346 1997-01-01 414.440 1998-01-01 420.529 1999-01-01 428.055 2000-01-01 435.502 2001-01-01 441.415 2002-01-01 448.435 2003-01-01 455.821 2004-01-01 463.615 2005-01-01 471.212 2006-01-01 479.880 2007-01-01 487.317 2008-01-01 492.981 2009-01-01 498.096 2010-01-01 499.935 2011-01-01 503.488 2012-01-01 506.049 2013-01-01 509.101 2014-01-01 512.776 2015-01-01 515.098 2016-01-01 516.768 2017-01-01 519.057 2018-01-01 522.256 2019-01-01 525.059 2020-01-01 534.830 2021-01-01 540.939 2022-01-01 546.638 2023-01-01 549.784