New Castle County · Delaware
Wilmington, DE demographics
Population, income and the local tax burden that sits on top of them — sourced from the Census Bureau and the Delaware Division of Revenue.
Quick answer
Wilmington, DE has a population of 71,106 and a median household income of $51,726 — about $4,311 a month before tax. That ranks 82 of 94 covered metros by income and 89 of 94 by population.
Population
71,106
City limits, ACS 5-year
Median household income
$51,726
ACS 5-year estimate
Combined sales tax
0%
Delaware + local
Income rank
#82
of 94 covered metros
Estimated annual sales tax on a median household
A Wilmington household at the median income of $51,726 spending roughly a quarter of pre-tax income on taxable retail goods would pay about $0 a year in sales tax at 0%. This is an illustration, not a filing figure: the taxable share of spending varies with household composition, and Delaware exempts or discounts several categories. Delaware charges no sales tax at all; retailers instead pay a gross receipts tax, which is why shoppers cross from Maryland and Pennsylvania to buy here.
Method: median household income × 25% taxable share × combined rate. The 25% share is a rough national benchmark from the BLS Consumer Expenditure Survey, not a Wilmington-specific measurement.
Sources
What each figure on this page comes from.
- Source: US Census Bureau, American Community Survey 5-year estimates
- Source: Delaware Division of Revenue rate tables · rates as published for 2026