PlainZIP

Altadena, CA

Single-footprint Census roll-up for Altadena, CA: 1 USPS ZIP, population 36,126. 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 ALTADENA-CA · Altadena, CA 1 ZIPs · 36,126 pop · #1341/25278 · Los Angeles County

INC-TOP · RANK-TOP · ABOVE-PEER · BOOK-ONE · OWN-MID · POP-SMALL · SPREAD-UNK · HOME-TOP

  • INC-TOP $134,903
  • RANK-TOP #1341/25278
  • ABOVE-PEER over Pasadena
  • BOOK-ONE 1 ZIP
  • OWN-MID 80% owners
  • POP-SMALL 36,126
  • SPREAD-UNK Single-ZIP book
  • HOME-TOP $1,135,200

Nearest income peer: Pasadena, CA ( $24,786 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 Altadena

Lowest/highest poles plus county-sharing cities nearest Altadena 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, Altadena, CA sits among US cities with a top-decile household income, on a small-city population base, across a single-ZIP footprint.

Top 5%
household income vs 25,278 US cities
36,126
city population (Census)
1
USPS ZIP codes covered
$134,903
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 $134,903 and home value $1,135,200 should be read as near-neighborhood numbers ; bachelor's attainment averages 53.9%.

Owner-occupancy sits in a mixed band (79.9%) - check the ZIP page's tenure split before treating Altadena as a pure owner town.

Within California, Oakley is the closest lower-income city and Cerritos the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Altadena.

Population concentration

Altadena's single ZIP 91001 carries the town

Altadena is published as a single USPS ZIP. Code 91001 is the entire residential footprint (36,126 ACS residents), so the city page and the ZIP page tell the same household story, open that ZIP for income, tenure, and commute detail.

Census ZBP business roll-up

Mid-pack ZBP load on Altadena's one ZIP

Citywide ZBP: 752 establishments, 4,913 employees , annual payroll $282,507k (~21 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 91001 (752 units) ; leading NAICS Professional, scientific, and technical services (146) · also Health care and social assistance · Arts, entertainment, and recreation .

View your shortlist →

ZIP Codes in Altadena, CA

These ZIP codes sit in Los Angeles County, which covers 290 ZIP codes in all; 1 of them fall in Altadena. See the Los Angeles County roll-up →

No other city sharing Los Angeles County reports a higher average ZIP median income than Altadena. Los Angeles, Long Beach and Whittier sit below it, so a household comparing this county on income alone starts here. Van Nuys marks the far end of that range at $73,875, 45% below Altadena.

ZIP Code Population Median income Establishments Density
91001 36,126 $134,903 752 1,690
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Altadena 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 Altadena, .