Residential delivery area · California
ZIP Code 91103: Pasadena, CA
ZIP code 91103 is in Pasadena, California, entirely in Los Angeles County (Census 2020 ZIP-county file). About 25,000 people live there (Census Bureau, ACS 2020-2024), the 3rd most populous of Pasadena's 7 residential ZIP codes. Median household income is $93,660 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Pasadena · 7 residential ZIPs
- County
- Los Angeles County
- Census places
- Pasadena
- Neighborhoods
- Linda Vista, Old Town Pasadena GeoNames
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House districts
- CA-30 (63%), CA-28 (37%) 119th Congress, by share of land
- State
- California
- Time zone
- Pacific
- Land area
- 4.6 sq mi · 5,479 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 91103?
91103 centers on 34.167°, -118.164° and covers 4.6 square miles of land plus 0.0 of water. It borders 6 ZIP codes: 91105, 91101, 91104, 91001, 91206, 91011.
The map draws ZIP code areas only. For the streets inside 91103, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 91103 compare with the rest of Pasadena?
| Measure | 91103 | In Pasadena | In Los Angeles County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 25,142 | 3rd of 7 | 196th of 301 | 720th of 1,802 |
| Median household income | $94k | 4th of 6 | 138th of 265 | 656th of 1,189 |
| Median home value | $983k | 5th of 6 | 95th of 273 | 368th of 1,317 |
Its median household income is higher than in 76% of U.S. residential ZIP codes, and it is denser than 95% 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 91103?
The 2020 Census counted 26,887 people in 91103; the ACS, which samples households over 2020-2024, estimates 25,142. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 25,142
- 2020 Census count
- 26,887
- Households
- 8,694
- Median age
- 39.9
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 91103?
Of the 25,142 people the ACS estimates in 91103, 19.3% are under 18 and 17.0% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (47.1%), then White (not Hispanic) (23.8%).
- Under 1819.3%
- 18 to 6463.7%
- 65 and older17.0%
- Hispanic or Latino47.1%
- White, not Hispanic23.8%
- Black, not Hispanic14.9%
- Asian, not Hispanic10.1%
- Other or two or more4.2%
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 91103 earn?
Median household income is $93,660 (ACS 2020-2024), the 138th highest of the 265 ranked ZIP codes in Los Angeles County.
- Median household income
- $93,660±$9,602
- Income per person
- $52,783
- Below the poverty line
- 17.5%
- Unemployed (of the labor force)
- 7.3%
- Adults 25+ with a bachelor's degree
- 39.3%
- Adjusted gross income per tax return, 2022
- $114,35812,000 returns; wages 64% 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 91103?
FHFA's house price index for 91103, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved +5.0% in 2025.
- Median home value (owners' estimate)
- $983,300
- Median gross rent
- $2,085
- Homes owned by their occupants
- 47.0%
- Housing units
- 9,778
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 91103?
724 business establishments had a location in this ZIP code in 2023, 121 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services146
- Health care and social assistance95
- Accommodation and food services84
- Retail trade53
- Real estate and rental and leasing50
- Other services (except public administration)50
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 91103?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91105 | Pasadena | 12,531 | $157k | 1.9 mi |
| 91101 | Pasadena | 21,165 | $88k | 2.0 mi |
| 91104 | Pasadena | 35,937 | $106k | 2.3 mi |
| 91001 | Altadena | 35,475 | $135k | 2.4 mi |
| 91206 | Glendale | 31,961 | $89k | 2.9 mi |
| 91011 | La Canada Flintridge | 19,935 | $242k | 4.1 mi |
| 91106 | Pasadena | 23,910 | $90k | 2.8 mi (near) |
| 91125 | Pasadena | 1,000 | – | 3.0 mi (near) |
| 90041 | Los Angeles | 27,920 | $115k | 3.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.