Ada County · Idaho
Boise, ID demographics
Population, income and the local tax burden that sits on top of them — sourced from the Census Bureau and the Idaho State Tax Commission.
Quick answer
Boise, ID has a population of 235,684 and a median household income of $74,920 — about $6,243 a month before tax. That ranks 32 of 94 covered metros by income and 70 of 94 by population.
Population
235,684
City limits, ACS 5-year
Median household income
$74,920
ACS 5-year estimate
Combined sales tax
6%
Idaho + local
Income rank
#32
of 94 covered metros
Estimated annual sales tax on a median household
A Boise household at the median income of $74,920 spending roughly a quarter of pre-tax income on taxable retail goods would pay about $1,124 a year in sales tax at 6%. This is an illustration, not a filing figure: the taxable share of spending varies with household composition, and Idaho exempts or discounts several categories. Idaho permits local option sales taxes only in designated resort cities; Boise is not one, so the state rate stands alone.
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 Boise-specific measurement.
Sources
What each figure on this page comes from.
- Source: US Census Bureau, American Community Survey 5-year estimates
- Source: Idaho State Tax Commission rate tables · rates as published for 2026