Zip Code 91101
Pasadena, California — Los Angeles County
📍 ZIP code 91101 is in Pasadena, Los Angeles County, California.
ZIP code 91101 is located in Pasadena, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 20,814. The area code for ZIP code 91101 is 626.
Quick Answer
Zip code 91101 is in Pasadena, California (Los Angeles County). It has a population of 20,814, median household income of $94,180, and median home value of $687,300.
Population
20,814
Income
$94,180
Home Value
$687,300
Climate
89°F / 46°F
About Zip Code 91101
Zip code 91101 is located in Pasadena, California, within Los Angeles County. Home to approximately 20,814 residents, this area sits at an elevation of 848 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 626.
The median household income is $94,180 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $687,300, and the cost of living index is 190 (90% above the national average of 100).
Summers average a high of 89°F while winters drop to 46°F. The area receives about 20 in of rain annually. The zip code covers 1.3 square miles of land area.
Key Statistics
20,814
$94,180
$687,300
Pacific (PST/PDT)
626
848 ft
1.3 sq mi
36.7
12,400
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Compare With Nearby Zip Codes
| Metric | 91101 | 91106 | 91104 | 91105 | 91103 | 91108 |
|---|---|---|---|---|---|---|
| City | Pasadena, CA | Pasadena, CA | Pasadena, CA | Pasadena, CA | Pasadena, CA | San Marino, CA |
| Population | 20,814 | 23,217 | 35,595 | 12,546 | 24,910 | 12,464 |
| Median Income | $94,180 | $89,213 | $103,052 | $156,835 | $84,683 | $186,023 |
| Home Value | $687,300 | $966,700 | $1,022,600 | $1,615,700 | $960,000 | $2M+ |
| Cost of Living | 190 | 249 | 250 | 250 | 235 | 250 |
| Median Age | 36.7 | 38.2 | 42 | 47.5 | 39.9 | 45.6 |
Cost of Living
100 = National Average. Pasadena's cost of living is 90% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.3x
Demographics
Zip code 91101 has a population of 20,814 people with a median age of 36.7. There are 12,400 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Pasadena (91101) population trend from 2010 to 2024
↓ -42.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
46°F
20 in
0 in
Pasadena experiences warm summers with average highs around 89°F. Winters are mild with lows averaging 46°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$687,300
Median Household Income
$94,180
With 12,400 housing units across 1.3 square miles, 91101 has a housing density of 9,538 units per square mile. The home price-to-income ratio is 7.3x.
Location & Geography
Latitude
34.1466°
Longitude
-118.1395°
Land Area
1.3 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 91101 (Pasadena, CA) with distances:
All Zip Codes in Pasadena, CA
Other zip codes serving Pasadena:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 91101's $94,180. A way to compare Pasadena to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 91101 (Pasadena, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Pasadena, California?
Pasadena, California uses zip code 91101 along with 4 other zip codes.
What county is zip code 91101 in?
Zip code 91101 is located in Los Angeles County, California.
What is the population of zip code 91101?
The population of zip code 91101 is 20,814 with a median age of 36.7.
Is 91101 in Pasadena, California?
Yes, zip code 91101 is in Pasadena, Los Angeles County, California. The area code is 626.
Frequently Asked Questions
What city is zip code 91101 in?
Zip code 91101 is in Pasadena, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 91101?
Zip code 91101 is a U.S. postal code in Pasadena, California (Los Angeles County). It has a population of 20,814 and covers 1.3 square miles.
What is the population of zip code 91101?
The population of zip code 91101 (Pasadena, CA) is 20,814 with a median age of 36.7. There are approximately 12,400 housing units in this area.
What is the median income in zip code 91101?
The median household income in zip code 91101 (Pasadena, CA) is $94,180 per year. The cost of living index is 190 (100 = national average).
What is the average home price in zip code 91101?
The median home value in zip code 91101 (Pasadena, CA) is $687,300. The cost of living index is 190 compared to the national average of 100.
What county is zip code 91101 in?
Zip code 91101 is located in Los Angeles County, California. The primary city is Pasadena.
What is the area code for zip code 91101?
Zip code 91101 in Pasadena, CA uses area code 626. It is located in the Pacific (PST/PDT) timezone.
Is zip code 91101 a good place to live?
Zip code 91101 (Pasadena, CA) has a cost of living index of 190 (100 = national average), a median household income of $94,180, and median home values of $687,300. The median age is 36.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 91101?
The cost of living index for zip code 91101 (Pasadena, CA) is 190, where 100 represents the national average. This area is above the national average. Median home value: $687,300.
What schools serve zip code 91101?
Zip code 91101 in Pasadena, California is served by the local school district of Los Angeles County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.