First three digits · California
ZIP Codes Starting with
38 ZIP codes start with 919, sorted at the San Diego, CA (SCF 920) sectional center (USPS labeling list L005, effective October 1, 2026) in California: 25 residential ZIP codes across 1 county and 13 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 919 mean?
The first digit, 9, is one of ten national areas (Alaska, California, Hawaii, Oregon, Washington, American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Micronesia, Palau and Armed Forces Pacific). The first three, 919, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 919 to the San Diego, CA (SCF 920) facility. The last two digits pick the delivery area. By residents, the largest town names among the 919 ZIP codes are Chula Vista, La Mesa, Spring Valley, National City, Lemon Grove and Imperial Beach.
The same facility sorts 3 prefixes, 182 ZIP codes in all: 919, 920, 921.
Where are the 919 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 919
| County | ||||||
|---|---|---|---|---|---|---|
| 91901 | Alpine | San Diego County | 18,197 | 234 | $114k | $852k |
| 91902 | Bonita | San Diego County | 17,698 | 1,578 | $123k | $985k |
| 91903 | Alpine | San Diego County | PO Box or unique | – | – | – |
| 91905 | Boulevard | San Diego County | 1,683 | 20 | $78k | $394k |
| 91906 | Campo | San Diego County | 3,325 | 32 | $63k | $328k |
| 91908 | Bonita | San Diego County | PO Box or unique | – | – | – |
| 91909 | Chula Vista | San Diego County | PO Box or unique | – | – | – |
| 91910 | Chula Vista | San Diego County | 77,123 | 6,127 | $90k | $741k |
| 91911 | Chula Vista | San Diego County | 85,542 | 6,721 | $82k | $636k |
| 91912 | Chula Vista | San Diego County | PO Box or unique | – | – | – |
| 91913 | Chula Vista | San Diego County | 57,721 | 6,346 | $129k | $812k |
| 91914 | Chula Vista | San Diego County | 16,877 | 2,540 | $191k | $1.05M |
| 91915 | Chula Vista | San Diego County | 35,322 | 4,570 | $140k | $782k |
| 91916 | Descanso | San Diego County | 1,710 | 28 | $103k | $677k |
| 91917 | Dulzura | San Diego County | 749 | 14 | – | $565k |
| 91921 | Chula Vista | San Diego County | PO Box or unique | – | – | – |
| 91931 | Guatay | San Diego County | 494 | 60 | $64k | – |
| 91932 | Imperial Beach | San Diego County | 25,741 | 6,018 | $86k | $857k |
| 91933 | Imperial Beach | San Diego County | PO Box or unique | – | – | – |
| 91934 | Jacumba | San Diego County | 1,200 | 23 | $51k | $361k |
| 91935 | Jamul | San Diego County | 9,114 | 86 | $152k | $902k |
| 91941 | La Mesa | San Diego County | 33,218 | 4,040 | $115k | $929k |
| 91942 | La Mesa | San Diego County | 41,424 | 7,179 | $93k | $776k |
| 91943 | La Mesa | San Diego County | PO Box or unique | – | – | – |
| 91944 | La Mesa | San Diego County | PO Box or unique | – | – | – |
| 91945 | Lemon Grove | San Diego County | 27,745 | 7,019 | $88k | $705k |
| 91946 | Lemon Grove | San Diego County | PO Box or unique | – | – | – |
| 91948 | Mount Laguna | San Diego County | 93 | 3 | $55k | – |
| 91950 | National City | San Diego County | 59,891 | 8,163 | $66k | $612k |
| 91951 | National City | San Diego County | PO Box or unique | – | – | – |
| 91962 | Pine Valley | San Diego County | 2,574 | 44 | $143k | $528k |
| 91963 | Potrero | San Diego County | 689 | 17 | – | – |
| 91976 | Spring Valley | San Diego County | PO Box or unique | – | – | – |
| 91977 | Spring Valley | San Diego County | 61,064 | 6,157 | $100k | $666k |
| 91978 | Spring Valley | San Diego County | 10,014 | 839 | $113k | $637k |
| 91979 | Spring Valley | San Diego County | PO Box or unique | – | – | – |
| 91980 | Tecate | San Diego County | 176 | 48 | – | – |
| 91987 | Tecate | San Diego County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.