CASTAIC, CA ZIP Code
| City | CASTAIC |
| State | California |
| ZIP Codes count | 2 (see all) |
| Post offices count | 1 (see all) |
| Total population | 18,921 (see all) |
ZIP Codes in CASTAIC, California
91310, 91384
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of CASTAIC, CA ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 91310 | PO BOX | – |
| 91384 | STANDARD | 28,693 |
Post offices
CASTAIC — Post Office™ 28201 FRANKLIN PKWY SANTA CLARITA, CA 91383-9998 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
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The recipient address information is provided for your reference.
Address example
30599 ARLINGTON ST
CASTAIC CA 91384-2424
CASTAIC CA 91384-2424
28454 KNOLL CT
CASTAIC CA 91384-37ND
CASTAIC CA 91384-37ND
29855 MONROE ST
CASTAIC CA 91384-2464
CASTAIC CA 91384-2464
30584 PANSY CT
CASTAIC CA 91384-4747
CASTAIC CA 91384-4747
29245 SHERIDAN RD
CASTAIC CA 91384-4629
CASTAIC CA 91384-4629
28151 WINDY WAY
CASTAIC CA 91384-3038
CASTAIC CA 91384-3038
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Census data for CASTAIC, CA
Demographic and housing estimates in CASTAIC, CA
| Total population | 18,921 |
| Male | 9,143 |
| Female | 9,778 |
| Total population | 18,921 |
| Under 5 years | 1,272 |
| 5 to 9 years | 1,200 |
| 10 to 14 years | 1,757 |
| 15 to 19 years | 1,510 |
| 20 to 24 years | 1,072 |
| 25 to 34 years | 2,093 |
| 35 to 44 years | 2,290 |
| 45 to 54 years | 3,001 |
| 55 to 59 years | 1,917 |
| 60 to 64 years | 1,137 |
| 65 to 74 years | 1,174 |
| 75 to 84 years | 303 |
| 85 years and over | 195 |
| Median age (years) | 37.8 |
| Under 18 years | 5,260 |
| 16 years and over | 14,354 |
| 18 years and over | 13,661 |
| 21 years and over | 12,961 |
| 62 years and over | 2,224 |
| 65 years and over | 1,672 |
| Total population | 18,921 |
| One race | 17,988 |
| White | 14,067 |
| Black or African American | 682 |
| American Indian and Alaska Native | 35 |
| Asian | 2,052 |
| Native Hawaiian and Other Pacific Islander | 53 |
| Some other race | 1,099 |
| Two or more races | 933 |
| Citizen, VOTING AGE 18 and over population | 12,894 |
| Male Citizen, VOTING AGE 18 and over population | 6,187 |
| Female Citizen, VOTING AGE 18 and over population | 6,707 |
Social characteristics in CASTAIC, CA
| Total households | 5,743 |
| Family households (families) | 4,846 |
| Married-couple family | 3,957 |
| Male householder, no wife present, family | 130 |
| Female householder, no husband present, family | 759 |
| Nonfamily households | 897 |
| Average household size | 3.29 |
| Average family size | 3.56 |
Economic characteristics in CASTAIC, CA
| Total households | 5,743 |
| Less than $10,000 | 131 |
| $10,000 to $14,999 | 100 |
| $15,000 to $24,999 | 173 |
| $25,000 to $34,999 | 194 |
| $35,000 to $49,999 | 360 |
| $50,000 to $74,999 | 658 |
| $75,000 to $99,999 | 816 |
| $100,000 to $149,999 | 1,777 |
| $150,000 to $199,999 | 830 |
| $200,000 or more | 704 |
| Median household income (dollars) | 112,529 |
Housing characteristics in CASTAIC, CA
| Total housing units | 5,844 |
| Occupied housing units | 5,743 |
| Vacant housing units | 101 |
| Total housing units | 5,844 |
| 1-unit, detached | 5,172 |
| 1-unit, attached | 57 |
| 2 units | 8 |
| 3 or 4 units | 59 |
| 5 to 9 units | 69 |
| 10 to 19 units | 104 |
| 20 or more units | 252 |
| Mobile home | 123 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 5,844 |
| Built 2014 or later | 11 |
| Built 2010 to 2013 | 0 |
| Built 2000 to 2009 | 1,774 |
| Built 1990 to 1999 | 1,393 |
| Built 1980 to 1989 | 2,217 |
| Built 1970 to 1979 | 206 |
| Built 1960 to 1969 | 126 |
| Built 1950 to 1959 | 105 |
| Built 1940 to 1949 | 0 |
| Built 1939 or earlier | 12 |
| Total housing units | 5,844 |
| 1 room | 19 |
| 2 rooms | 16 |
| 3 rooms | 262 |
| 4 rooms | 487 |
| 5 rooms | 852 |
| 6 rooms | 1,313 |
| 7 rooms | 1,214 |
| 8 rooms | 720 |
| 9 rooms or more | 961 |
| Median rooms | 6.5 |
| Total housing units | 5,844 |
| No bedroom | 19 |
| 1 bedroom | 150 |
| 2 bedrooms | 704 |
| 3 bedrooms | 2,488 |
| 4 bedrooms | 1,850 |
| 5 or more bedrooms | 633 |
| Occupied housing units | 5,743 |
| Owner-occupied | 4,774 |
| Renter-occupied | 969 |
| Average household size of owner-occupied unit | 3.29 |
| Average household size of renter-occupied unit | 3.28 |
| Occupied housing units | 5,743 |
| Moved in 2017 or later | 178 |
| Moved in 2015 to 2016 | 500 |
| Moved in 2010 to 2014 | 1,625 |
| Moved in 2000 to 2009 | 2,003 |
| Moved in 1990 to 1999 | 889 |
| Moved in 1989 and earlier | 548 |
| Owner-occupied units | 4,774 |
| Less than $50,000 | 105 |
| $50,000 to $99,999 | 50 |
| $100,000 to $149,999 | 0 |
| $150,000 to $199,999 | 43 |
| $200,000 to $299,999 | 116 |
| $300,000 to $499,999 | 1,919 |
| $500,000 to $999,999 | 2,477 |
| $1,000,000 or more | 64 |
| Median (dollars) | 516,600 |
| Owner-occupied units | 4,774 |
| Housing units with a mortgage | 4,029 |
| Housing units without a mortgage | 745 |
| Occupied units paying rent | 948 |
| Less than $500 | 9 |
| $500 to $999 | 103 |
| $1,000 to $1,499 | 315 |
| $1,500 to $1,999 | 167 |
| $2,000 to $2,499 | 159 |
| $2,500 to $2,999 | 121 |
| $3,000 or more | 74 |
| Median (dollars) | 1,641 |
| No rent paid | 21 |
Data is based on 2018 Census
ZIP Codes for other locations
State for CASTAIC
California ZIP CodesOther cities in California