Household income in Washington is a core input for market sizing, franchise territory analysis, and local business plans. This page aggregates 588 ZIP Code Tabulation Areas (ZCTAs) using the U.S. Census Bureau's American Community Survey (ACS) 2024 5-year estimates — the same vintage used in official state tables B19013 (median income) and B19001 (income distribution).

Washington's population-weighted median household income is $104,174, 18.9% above the US ZIP-weighted median. Mean household income of $133,860 is typically higher than the median when affluent households pull up the average — a signal worth checking before assuming a market is uniformly wealthy.

In Washington, younger households (householder under 25) report a median income of $56,287. Income peaks for householders aged 45 to 64, at $119,043. Among householders 65 and over, the median falls to $67,096 — a common pattern as people transition from career earnings to retirement income.

Washington has 3,064,820 households spread across 16 income brackets. The largest share (19%) falls in the $200,000 or more range. Roughly 49% of households earn $100,000 or more per year. About 24% earn less than $50,000.

ACS 5-year estimates combine five years of survey responses, improving reliability for smaller geographies at the cost of timeliness. For high-stakes decisions — site selection, loan underwriting, or investor decks — cross-check these figures with the primary Census tables linked below and note that the Census top-codes median household income at $250,001, so ZIP codes at that ceiling are genuinely in the highest reported bracket.