Index, WA

Single-footprint Census roll-up for Index, WA: 1 USPS ZIP, population 420. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet INDEX-WA · Index, WA 1 ZIPs · 420 pop · #5436/25278 · Snohomish County

INC-HIGH · RANK-UPPER · BELOW-PEER · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-HIGH

  • INC-HIGH $94,375
  • RANK-UPPER #5436/25278
  • BELOW-PEER under Arlington
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 86% owners
  • POP-VILLAGE 420
  • SPREAD-UNK Single-ZIP book
  • HOME-HIGH $430,000

Nearest income peer: Arlington, WA (+ $5,306 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Index

Lowest/highest poles plus county-sharing cities nearest Index on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Index, WA sits among US cities with an upper-quartile household income, on a village-scale population base, across a single-ZIP footprint.

Top 22%
household income vs 25,278 US cities
420
city population (Census)
1
USPS ZIP codes covered
$94,375
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $94,375 and home value $430,000 should be read as near-neighborhood numbers ; bachelor's attainment averages 12.5%.

Owner-occupancy here runs high (85.9%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Washington, Clinton is the closest lower-income city and La Conner the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Index.

Population concentration

One ZIP, 98256, is all of Index

There is no split to weigh here: 98256 holds every one of Index's 420 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Mid-pack ZBP load on Index's one ZIP

Citywide ZBP: 7 establishments, 14 employees , annual payroll $634k (~17 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 98256 (7 units) .

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ZIP Codes in Index, WA

These ZIP codes sit in Snohomish County, which covers 27 ZIP codes in all; 1 of them fall in Index. See the Snohomish County roll-up →

Index sits in the lower half of Snohomish County on income: Bothell, Lynnwood and Marysville report more, and only Everett reports less. Bothell marks the far end of that range at $164,965, 75% above Index.

ZIP Code Population Median income Establishments Density
98256 420 $94,375 7 2

Index roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Index, .