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 New Castle County, DE Series ID: DENEWC3POP 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 1970-01-01 385.856 1971-01-01 394.700 1972-01-01 399.000 1973-01-01 401.600 1974-01-01 402.500 1975-01-01 404.700 1976-01-01 404.600 1977-01-01 404.000 1978-01-01 404.200 1979-01-01 402.200 1980-01-01 398.115 1981-01-01 399.323 1982-01-01 401.475 1983-01-01 404.700 1984-01-01 408.235 1985-01-01 411.518 1986-01-01 416.660 1987-01-01 422.474 1988-01-01 430.684 1989-01-01 437.788 1990-01-01 443.784 1991-01-01 450.843 1992-01-01 457.210 1993-01-01 462.245 1994-01-01 468.297 1995-01-01 474.435 1996-01-01 479.995 1997-01-01 485.166 1998-01-01 490.382 1999-01-01 496.079 2000-01-01 501.938 2001-01-01 505.859 2002-01-01 509.738 2003-01-01 514.014 2004-01-01 517.727 2005-01-01 521.680 2006-01-01 525.144 2007-01-01 528.567 2008-01-01 531.956 2009-01-01 534.842 2010-01-01 538.792 2011-01-01 542.031 2012-01-01 545.053 2013-01-01 548.614 2014-01-01 551.124 2015-01-01 553.929 2016-01-01 555.582 2017-01-01 556.491 2018-01-01 557.983 2019-01-01 559.941 2020-01-01 570.918 2021-01-01 572.029 2022-01-01 575.254 2023-01-01 578.592