Residential delivery area · California
ZIP Code 91101: Pasadena, CA
ZIP code 91101 is in Pasadena, California, entirely in Los Angeles County (Census 2020 ZIP-county file). About 21,000 people live there (Census Bureau, ACS 2020-2024), the 5th most populous of Pasadena's 7 residential ZIP codes. Median household income is $87,813 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Pasadena · 7 residential ZIPs
- County
- Los Angeles County
- Census places
- Pasadena
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House district
- CA-28 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 1.3 sq mi · 16,665 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 91101?
91101 centers on 34.147°, -118.139° and covers 1.3 square miles of land. It borders 4 ZIP codes: 91106, 91104, 91105, 91103.
The map draws ZIP code areas only. For the streets inside 91101, 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 91101 compare with the rest of Pasadena?
| Measure | 91101 | In Pasadena | In Los Angeles County | In CA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 21,165 | 5th of 7 | 218th of 301 | 796th of 1,802 |
| Median household income | $88k | 6th of 6 | 159th of 265 | 727th of 1,189 |
| Median home value | $682k | 6th of 6 | 209th of 273 | 705th of 1,317 |
Its median household income is higher than in 71% of U.S. residential ZIP codes, and it is denser than 99% 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 91101?
The 2020 Census counted 20,583 people in 91101; the ACS, which samples households over 2020-2024, estimates 21,165. Between the 2010 and 2020 censuses its population grew 0.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,165
- 2020 Census count
- 20,583+0.6% since 2010 (20,460)
- Households
- 11,507
- Median age
- 36.5
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 91101?
Of the 21,165 people the ACS estimates in 91101, 10.3% are under 18 and 16.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (38.7%), then Hispanic or Latino (27.7%).
- Under 1810.3%
- 18 to 6473.7%
- 65 and older16.0%
- White, not Hispanic38.7%
- Hispanic or Latino27.7%
- Asian, not Hispanic21.2%
- Black, not Hispanic7.8%
- Other or two or more4.6%
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 91101 earn?
Median household income is $87,813 (ACS 2020-2024), the 159th highest of the 265 ranked ZIP codes in Los Angeles County. It is not measurably different from 2015-2019 ($85,981 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $87,813±$11,381
- Income per person
- $62,821
- Below the poverty line
- 19.6%
- Unemployed (of the labor force)
- 5.1%
- Adults 25+ with a bachelor's degree
- 60.1%
- Adjusted gross income per tax return, 2022
- $117,90010,320 returns; wages 69% 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 91101?
- Median home value (owners' estimate)
- $682,300
- Median gross rent
- $2,270
- Homes owned by their occupants
- 15.2%
- Housing units
- 12,408
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 91101?
2,134 business establishments had a location in this ZIP code in 2023, 73 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services547
- Health care and social assistance360
- Finance and insurance252
- Real estate and rental and leasing183
- Other services (except public administration)166
- Accommodation and food services130
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 91101?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 91106 | Pasadena | 23,910 | $90k | 0.8 mi |
| 91104 | Pasadena | 35,937 | $106k | 1.5 mi |
| 91105 | Pasadena | 12,531 | $157k | 1.7 mi |
| 91103 | Pasadena | 25,142 | $94k | 2.0 mi |
| 91125 | Pasadena | 1,000 | – | 1.0 mi (near) |
| 91108 | San Marino | 12,401 | $205k | 2.2 mi (near) |
| 91030 | South Pasadena | 26,068 | $127k | 2.8 mi (near) |
| 91107 | Pasadena | 32,316 | $126k | 3.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.