Arapahoe County · Colorado
Aurora, CO demographics
Population, income and the local tax burden that sits on top of them — sourced from the Census Bureau and the Colorado Department of Revenue.
Quick answer
Aurora, CO has a population of 395,052 and a median household income of $84,156 — about $7,013 a month before tax. That ranks 22 of 94 covered metros by income and 51 of 94 by population.
Population
395,052
City limits, ACS 5-year
Median household income
$84,156
ACS 5-year estimate
Combined sales tax
8%
Colorado + local
Income rank
#22
of 94 covered metros
Estimated annual sales tax on a median household
A Aurora household at the median income of $84,156 spending roughly a quarter of pre-tax income on taxable retail goods would pay about $1,683 a year in sales tax at 8%. This is an illustration, not a filing figure: the taxable share of spending varies with household composition, and Colorado exempts or discounts several categories. Aurora spans three counties — Arapahoe, Adams and Douglas — so the county component depends on which side of the city line an address sits.
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 Aurora-specific measurement.
Sources
What each figure on this page comes from.
- Source: US Census Bureau, American Community Survey 5-year estimates
- Source: Colorado Department of Revenue rate tables · rates as published for 2026