Residential delivery area · California
ZIP Code 91104: Pasadena, CA
ZIP code 91104 is in Pasadena, California, entirely in Los Angeles County (Census 2020 ZIP-county file). About 36,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Pasadena's 7 residential ZIP codes. Median household income is $105,958 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Pasadena (82%) and Altadena (18%).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Pasadena · 7 residential ZIPs
- County
- Los Angeles County
- Census places
- Pasadena (82%); Altadena (18%) census-designated place
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House district
- CA-28 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 3.8 sq mi · 9,530 people per sq mi
- PO Box ZIPs
- 18 more ZIP codes use the name Pasadena for PO boxes or single organizations
Where is ZIP code 91104?
91104 centers on 34.165°, -118.124° and covers 3.8 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 91101, 91106, 91107, 91001, 91103.
The map draws ZIP code areas only. For the streets inside 91104, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 91104 compare with the rest of Pasadena?
| Measure | 91104 | In Pasadena | In Los Angeles County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 35,937 | 1st of 7 | 117th of 301 | 466th of 1,802 |
| Median household income | $106k | 3rd of 6 | 92nd of 265 | 495th of 1,189 |
| Median home value | $1.08M | 3rd of 6 | 78th of 273 | 299th of 1,317 |
Its median household income is higher than in 85% of U.S. residential ZIP codes, and it is denser than 98% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 91104?
The 2020 Census counted 34,707 people in 91104; the ACS, which samples households over 2020-2024, estimates 35,937. Between the 2010 and 2020 censuses its population fell 5.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 35,937
- 2020 Census count
- 34,707−5.6% since 2010 (36,751)
- Households
- 13,488
- Median age
- 41.7
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 91104?
Of the 35,937 people the ACS estimates in 91104, 20.2% are under 18 and 16.0% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (39.0%), then White (not Hispanic) (39.0%).
- Under 1820.2%
- 18 to 6463.9%
- 65 and older16.0%
- Hispanic or Latino39.0%
- White, not Hispanic39.0%
- Asian, not Hispanic9.9%
- Other or two or more6.7%
- Black, not Hispanic5.4%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 91104 earn?
Median household income is $105,958 (ACS 2020-2024), the 92nd highest of the 265 ranked ZIP codes in Los Angeles County. It rose from $95,606 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $105,958
- Income per person
- $53,241
- Below the poverty line
- 12.6%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 50.0%
- Adjusted gross income per tax return, 2022
- $103,00716,240 returns; wages 73% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 91104?
FHFA's house price index for 91104, built from repeat sales and appraisals of the same homes, rose 93% from 2015 to 2025 and rose 51% from 2020 to 2025, and moved +2.9% in 2025.
- Median home value (owners' estimate)
- $1,080,100
- Median gross rent
- $2,063
- Homes owned by their occupants
- 55.4%
- Housing units
- 14,498
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 91104?
825 business establishments had a location in this ZIP code in 2023, 108 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services152
- Health care and social assistance115
- Other services (except public administration)96
- Arts, entertainment, and recreation74
- Accommodation and food services70
- Retail trade65
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 91104?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91101 | Pasadena | 21,165 | $88k | 1.5 mi |
| 91106 | Pasadena | 23,910 | $90k | 1.8 mi |
| 91107 | Pasadena | 32,316 | $126k | 2.1 mi |
| 91001 | Altadena | 35,475 | $135k | 2.2 mi |
| 91103 | Pasadena | 25,142 | $94k | 2.3 mi |
| 91125 | Pasadena | 1,000 | – | 1.9 mi (near) |
| 91105 | Pasadena | 12,531 | $157k | 3.0 mi (near) |
| 91108 | San Marino | 12,401 | $205k | 3.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.