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New Castle County, DE

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New Castle County, DE
  • Location TypeCounty
  • County SeatWilmington, DE
  • Population538,479
  • Land Area (Square Miles) 426.2900
  • Population Density (Per Square Mile) 1263.2000

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Median Age

% Population African American

% Population Hispanic

% Population White

Population Density
(Persons per Square Mile)

Rural-Urban Continuum


Suggested Data Series

TitleLatest YearLatest ValueLatest Rank
Decennial Census Population (County)2010538,479116 of 3170
Decennial Census Population Per Square Mile (County)20101,263.20132 of 3170
Percent of African American Population (County)201826.1%392 of 3131
Percent of Hispanic Population (County)201810.3%755 of 3139
Persistent Poverty Counties (County)201300 of 0 - 1
Rural-Urban Continuum for Counties (County)201311 of 1 - 9
Unemployment Rate (County)20193.7%1516 of 3140
Death Rate (Per 100,000) (County)2016839.902514 of 3105
Percent of Adults Physically Inactive (County)201625.5%1970 of 3141
Age-Adjusted Rate of Diabetes per 1,000 Persons (County)20169.501395 of 3141
Medicare Part D Prescription Enrollment Rate (County)201861.5%488 of 3137
Farmers' Markets (County)20161679 of 2249
Percent of Children Without a Market Within One Mile (County)20156.2%2908 of 3004
Percent of School-age Children in Poverty (County)201814.1%2251 of 3140
Total Public School Expenditures (County)2017$1,377,219,000.00112 of 3123
Number of Public Libraries (County)20172446 of 1287
Average Daily Maximum Heat Index (County)201191.072035 of 3103
Percentage of Days with a Good Air Quality Index (County)201969.0%885 of 1006
Second Highest 1-hour Carbon Monoxide Measurement (County)20191.20108 of 165
Greenhouse Gas Direct Emitting Facilities (County)20181164 of 1227
Average Fine Particulate Matter (County)201111.941513 of 3108
FEMA Public Assistance Grant Dollars Obligated for Disasters (County)2012$677,495.50139 of 466
Total Deposits in Banks (County)2016-2017$297,721,734,000.005 of 3108
Property Taxes as Percent of Income: Five-Year Estimates (County)2006-20101.8%1673 of 2773
Percent of Firms Which are Women Owned (County)201231.9%1422 of 3093
Manufacturing Establishments with 5 to 9 Employees (County)201857180 of 1961
Inmates Executed, All Races (Cumulative Since 1977) (County)1977-2018920 of 198
Immigrant Households Entering County According to Tax Returns (County)2017-201865201 of 389
Estimated Veteran Population Under 45 Years Old (County)20107,030139 of 3143
Total Planted Acres (County)201949,804.781875 of 3034
Online, Mail Order, and Television Retail Sales in 2009 Dollars (County)2050$1,528,000,000.00123 of 2709
Total Retail and Food Service Sales in 2009 Dollars (County)2050$14,119,000,000.00113 of 3108
Earnings in Management of Companies and Enterprises Occupations in 2009 Dollars (County)2050$2,682,000,000.0083 of 2178
Population (County)2050697,000134 of 3076
Per Capita Total Personal Income (County)2050$280,862.00178 of 3112
Total Employees (County)2050602,000103 of 3065
Population 18 to 24 Years Old (County)205063,000127 of 2216
African American Male Population 25 Years Old (County)20501,02781 of 2780
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