ZIP Code 91001
| ZIP Code | 91001 |
| City | ALTADENA |
| State | CA |
| Type | STANDARD |
| Post offices count | 1 (see all) |
| Total population | 36,867 (see all) |
Cities in ZIP Code 91001
Primary city: ALTADENA, CAPost offices
ALTADENA — Post Office™ 2271 LAKE AVE ALTADENA, CA 91001-9998 MoreALTADENA — Post Office™2271 LAKE AVE For facility accessibility, please call the Post Office. 1-800-ASK-USPS® (800-275-8777) Hours
Services at this Location Service hours may vary.
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Census data for ZIP Code 91001
Demographic and housing estimates in ZIP Code 91001
| Total population | 36,867 |
| Male | 17,417 |
| Female | 19,450 |
| Total population | 36,867 |
| Under 5 years | 1,918 |
| 5 to 9 years | 2,076 |
| 10 to 14 years | 2,207 |
| 15 to 19 years | 1,929 |
| 20 to 24 years | 1,636 |
| 25 to 34 years | 4,008 |
| 35 to 44 years | 4,802 |
| 45 to 54 years | 5,534 |
| 55 to 59 years | 3,020 |
| 60 to 64 years | 2,632 |
| 65 to 74 years | 3,854 |
| 75 to 84 years | 2,309 |
| 85 years and over | 942 |
| Median age (years) | 44.6 |
| Under 18 years | 7,537 |
| 16 years and over | 30,291 |
| 18 years and over | 29,330 |
| 21 years and over | 28,310 |
| 62 years and over | 8,632 |
| 65 years and over | 7,105 |
| Total population | 36,867 |
| One race | 32,928 |
| White | 16,400 |
| Black or African American | 8,717 |
| American Indian and Alaska Native | 394 |
| Asian | 1,903 |
| Native Hawaiian and Other Pacific Islander | 36 |
| Some other race | 5,478 |
| Two or more races | 3,939 |
| Citizen, VOTING AGE 18 and over population | 27,060 |
| Male Citizen, VOTING AGE 18 and over population | 12,714 |
| Female Citizen, VOTING AGE 18 and over population | 14,346 |
Social characteristics in ZIP Code 91001
| Total households | 12,330 |
| Family households (families) | 6,414 |
| Married-couple family | 490 |
| Male householder, no wife present, family | 1,389 |
| Female householder, no husband present, family | 917 |
| Nonfamily households | 4,037 |
| Average household size | 5,030 |
| Average family size | 2.96 |
Economic characteristics in ZIP Code 91001
| Total households | 12,330 |
| Less than $10,000 | 235 |
| $10,000 to $14,999 | 240 |
| $15,000 to $24,999 | 525 |
| $25,000 to $34,999 | 541 |
| $35,000 to $49,999 | 918 |
| $50,000 to $74,999 | 1,633 |
| $75,000 to $99,999 | 1,266 |
| $100,000 to $149,999 | 2,164 |
| $150,000 to $199,999 | 1,489 |
| $200,000 or more | 3,319 |
| Median household income (dollars) | 114,668 |
Housing characteristics in ZIP Code 91001
| Total housing units | 13,271 |
| Occupied housing units | 12,330 |
| Vacant housing units | 941 |
| Total housing units | 13,271 |
| 1-unit, detached | 11,947 |
| 1-unit, attached | 229 |
| 2 units | 202 |
| 3 or 4 units | 183 |
| 5 to 9 units | 100 |
| 10 to 19 units | 217 |
| 20 or more units | 324 |
| Mobile home | 61 |
| Boat, RV, van, etc. | 8 |
| Total housing units | 13,271 |
| Built 2014 or later | 7 |
| Built 2010 to 2013 | 255 |
| Built 2000 to 2009 | 213 |
| Built 1990 to 1999 | 509 |
| Built 1980 to 1989 | 274 |
| Built 1970 to 1979 | 483 |
| Built 1960 to 1969 | 1,081 |
| Built 1950 to 1959 | 2,765 |
| Built 1940 to 1949 | 2,970 |
| Built 1939 or earlier | 4,714 |
| Total housing units | 13,271 |
| 1 room | 199 |
| 2 rooms | 93 |
| 3 rooms | 893 |
| 4 rooms | 1,632 |
| 5 rooms | 2,763 |
| 6 rooms | 2,917 |
| 7 rooms | 2,102 |
| 8 rooms | 1,318 |
| 9 rooms or more | 1,354 |
| Median rooms | 5.9 |
| Total housing units | 13,271 |
| No bedroom | 216 |
| 1 bedroom | 819 |
| 2 bedrooms | 3,375 |
| 3 bedrooms | 6,634 |
| 4 bedrooms | 1,752 |
| 5 or more bedrooms | 475 |
| Occupied housing units | 12,330 |
| Owner-occupied | 9,554 |
| Renter-occupied | 2,776 |
| Average household size of owner-occupied unit | 2.97 |
| Average household size of renter-occupied unit | 2.90 |
| Occupied housing units | 12,330 |
| Moved in 2017 or later | 488 |
| Moved in 2015 to 2016 | 2,152 |
| Moved in 2010 to 2014 | 2,199 |
| Moved in 2000 to 2009 | 2,374 |
| Moved in 1990 to 1999 | 2,153 |
| Moved in 1989 and earlier | 2,964 |
| Owner-occupied units | 9,554 |
| Less than $50,000 | 53 |
| $50,000 to $99,999 | 32 |
| $100,000 to $149,999 | 62 |
| $150,000 to $199,999 | 0 |
| $200,000 to $299,999 | 61 |
| $300,000 to $499,999 | 498 |
| $500,000 to $999,999 | 5,368 |
| $1,000,000 or more | 3,480 |
| Median (dollars) | 887,100 |
| Owner-occupied units | 9,554 |
| Housing units with a mortgage | 7,252 |
| Housing units without a mortgage | 2,302 |
| Occupied units paying rent | 2,493 |
| Less than $500 | 30 |
| $500 to $999 | 180 |
| $1,000 to $1,499 | 503 |
| $1,500 to $1,999 | 824 |
| $2,000 to $2,499 | 490 |
| $2,500 to $2,999 | 229 |
| $3,000 or more | 237 |
| Median (dollars) | 1,824 |
| No rent paid | 283 |
Data is based on 2021 Census