Data Last Updated: December 1, 2024

SAN DIEGO County, CA ZIP Codes

SAN DIEGO County, CA Covers 181 ZIP Codes

ZIP CodeClassificationTimezoneArea Code(s)
91901GeneralPacific619/858
91902GeneralPacific619
91903P.O. BoxPacific619/858
91905GeneralPacific619/760
91906GeneralPacific619/858
91908P.O. BoxPacific619
91909P.O. BoxPacific619/858
91910GeneralPacific619/858
91911GeneralPacific619/858
91912P.O. BoxPacific619/858
91913GeneralPacific619/858
91914GeneralPacific619
91915GeneralPacific619
91916GeneralPacific619/858
91917GeneralPacific619/858
91921P.O. BoxPacific619/858
91931P.O. BoxPacific619/858
91932GeneralPacific619
91933P.O. BoxPacific619
91934GeneralPacific619/858
91935GeneralPacific619/858
91941GeneralPacific619/858
91942GeneralPacific619/858
91943P.O. BoxPacific619/858
91944P.O. BoxPacific619/858
91945GeneralPacific619/858
91946P.O. BoxPacific619/858
91948P.O. BoxPacific619/858
91950GeneralPacific619
91951P.O. BoxPacific619
91962GeneralPacific619/858
91963GeneralPacific619/858
91976P.O. BoxPacific619/858
91977GeneralPacific619/858
91978GeneralPacific619
91979P.O. BoxPacific619/858
91980GeneralPacific619/858
91987UniquePacific619/858
92003GeneralPacific760/442
92004GeneralPacific760/442
92007GeneralPacific760
92008GeneralPacific760
92009GeneralPacific760/442
92010GeneralPacific442/760
92011GeneralPacific442/760
92013P.O. BoxPacific760/442
92014GeneralPacific858
92018P.O. BoxPacific760
92019GeneralPacific619/858
92020GeneralPacific619/858
92021GeneralPacific619/858
92022P.O. BoxPacific619/858
92023P.O. BoxPacific760
92024GeneralPacific760/442
92025GeneralPacific760/442
92026GeneralPacific760/442
92027GeneralPacific760/442
92028GeneralPacific760/442
92029GeneralPacific760/442
92030P.O. BoxPacific760/442
92033P.O. BoxPacific760/442
92036GeneralPacific760
92037GeneralPacific858/619
92038P.O. BoxPacific858/619
92039P.O. BoxPacific858/619
92040GeneralPacific619/858
92046P.O. BoxPacific760/442
92049P.O. BoxPacific760/442
92051P.O. BoxPacific760/442
92052P.O. BoxPacific760/442
92054GeneralPacific760/442
92055P.O. BoxPacific760
92056GeneralPacific760/442
92057GeneralPacific760/442
92058GeneralPacific442/760
92059GeneralPacific442/760
92060P.O. BoxPacific442/760
92061GeneralPacific442/760
92064GeneralPacific858
92065GeneralPacific760/442
92066GeneralPacific760/442
92067P.O. BoxPacific858/619
92068P.O. BoxPacific760/442
92069GeneralPacific760/442
92070GeneralPacific760/442
92071GeneralPacific619
92072P.O. BoxPacific619/858
92074P.O. BoxPacific858
92075GeneralPacific858
92078GeneralPacific760/442
92079P.O. BoxPacific760/442
92081GeneralPacific442/760
92082GeneralPacific760/442
92083GeneralPacific760/442
92084GeneralPacific760/442
92085P.O. BoxPacific760/442
92086GeneralPacific760/442
92088P.O. BoxPacific760/442
92091GeneralPacific858/619
92092UniquePacific858
92093UniquePacific858
92096UniquePacific760/442
92101GeneralPacific619/858
92102GeneralPacific619/858
92103GeneralPacific619/858/760
92104GeneralPacific619/858/760
92105GeneralPacific619/858
92106GeneralPacific619
92107GeneralPacific619
92108GeneralPacific858/619
92109GeneralPacific619
92110GeneralPacific619
92111GeneralPacific858/619
92112P.O. BoxPacific619/858
92113GeneralPacific619
92114GeneralPacific619/858
92115GeneralPacific619
92116GeneralPacific619/858
92117GeneralPacific858/619
92118GeneralPacific619/858
92119GeneralPacific619
92120GeneralPacific619
92121GeneralPacific858/619/760/442
92122GeneralPacific858/619/760/442
92123GeneralPacific858/619
92124GeneralPacific619/858
92126GeneralPacific858/619/760/442
92127GeneralPacific858
92128GeneralPacific858/619
92129GeneralPacific858/619
92130GeneralPacific858
92131GeneralPacific858/619
92132UniquePacific619/858
92134UniquePacific619/858
92135P.O. BoxPacific619/858
92136UniquePacific619
92137P.O. BoxPacific619/858
92138P.O. BoxPacific619/858
92139GeneralPacific619
92140UniquePacific619/858/760
92142P.O. BoxPacific619/858
92143P.O. BoxPacific619/858
92145UniquePacific858/619/760
92147UniquePacific619
92149P.O. BoxPacific619/858
92150P.O. BoxPacific619/858
92152UniquePacific619
92153P.O. BoxPacific619
92154GeneralPacific619
92155UniquePacific619/858
92158UniquePacific619
92159P.O. BoxPacific619/858
92160P.O. BoxPacific619/858
92161UniquePacific858/619
92163P.O. BoxPacific619/858
92165P.O. BoxPacific619/858
92166P.O. BoxPacific619/858
92167P.O. BoxPacific619/858
92168P.O. BoxPacific619/858
92169P.O. BoxPacific619
92170P.O. BoxPacific619/858
92171P.O. BoxPacific619/858
92172P.O. BoxPacific619/858
92173GeneralPacific619
92174P.O. BoxPacific619/858
92175P.O. BoxPacific619/858
92176P.O. BoxPacific619/858
92177P.O. BoxPacific619/858
92178P.O. BoxPacific619/858
92179P.O. BoxPacific619/858
92182UniquePacific619
92186P.O. BoxPacific619/858
92187UniquePacific619/858
92191P.O. BoxPacific619/858
92192P.O. BoxPacific619/858
92193P.O. BoxPacific619/858
92195P.O. BoxPacific619/858
92196P.O. BoxPacific619/858
92197P.O. BoxPacific619
92198P.O. BoxPacific858/619
92199GeneralPacific619/858

* Indicates a Multi County ZIP Code, whose primary County is something other than San Diego, CA.


Timezone(s): All Time Zones found within this county. In the United States, there are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau. The alignment between ZIP codes and time zones is not perfect. A single time zone can cover multiple ZIP codes, and, conversely, a single ZIP code could theoretically span across multiple time zones, although this is quite rare.Pacific
 
Population: The total Population for San Diego County, CA, taken from the 2020 U.S. Census DP1. This population total includes all people residing in and counts them regardless of citizenship or immigration status. Include are U.S. Citizens, permanent residents, temporary migrants, and undocumented workers. The total population represents people who live in the state, not just those present on the day of the census. State Population is critical in determining political representation, funding allocation, planning and policy-making, and demographic analysis. 3,298,634 (More Details)
Male Population: The sum of all males for San Diego County, CA from the 2020 U.S. Census DP1. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The male population information is important for healthcare planning, policy making, social research, and economic planning and development.1,642,796
Female Population: The sum of all females for San Diego County, CA from the 2020 U.S. Census DP1. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The female population information is important for healthcare planning, policy making, social research, and economic planning and development.1,655,838
Median Age: The median age of the total population of this county. Median age is not a future prediction, it is the actual number from the 2020 Census. Median age is the middle age of the population. Half the population is older than the average age and half is younger.37
 
ZIP Codes: The total number of ZIP Codes which at least partially fall inside San Diego County, CA. Did you know that approximately 23% of ZIP Codes cross county lines? Several even cross State lines. ZIP Codes do not follow other geographic boundaries because they were created exclusively for the expedient delivery of mail.181
Cities: The total number of City names which are associated with ZIP Codes that partially or wholly cross into San Diego County, CA. Alongside the official city name, USPS also recognizes certain alternate names for cities or towns that can be used in mailing addresses. These may include towns, villages, abbreviations, names in other languages, or names that have been commonly used historically.51
Counties: The total number of counties associated with ZIP Codes that are at least partially part of San Diego County, CA.1
Area Codes: The total number of Area Codes associated with ZIP Codes in San Diego County, CA. Area codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. Each area code identifies a specific geographic area (usually part of a state or territory) and allows calls to be routed to the correct area. There are approximately 350 area codes in use in the United States.4
 
Total Area: The approximate amount of area covered by San Diego, CA in square miles. This includes all land and water areas within the legal county boundaries.4,526 square miles (county)
Land Area: The approximate amount of land area covered by San Diego, CA in square miles. Land area data provided by the Census Bureau are based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each state. Land area is important in many types of statistical analysis. For example, population density, the number of people per unit of land area, is a commonly used statistic based on this data. Land area measurements are also important for urban planning, environmental studies, and economic analysis. 4,207 square miles (county)
Water Area: The approximate amount of water area covered by San Diego, CA in square miles. Calculations for water area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompassed features such as lakes, reservoirs, rivers, and coastal water bodies. Water surface data are especially important for environmental and conservation planning, water resource management, transportation, and recreational planning.319 square miles (county)

SAN DIEGO, CA Demographic Information

Total population of SAN DIEGO County, CA: Total Population from the 2020 Census. This reflects the exact population of the geographic area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.3,298,634
Male population of SAN DIEGO County, CA: The Male Population from the 2020 Census. This is not a forecast for the future, but an exact count for this geographic area at the time of the Census. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The Male Population information is important for healthcare planning, policy making, social research, and economic planning and development.1,642,796
Female population of SAN DIEGO County, CA: The Female Population from the 2020 Census. This is not a forecast for the future, but an exact count for this geographic area at the time of the Census. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The Female Population information is important for healthcare planning, policy making, social research, and economic planning and development.1,655,838
Median age (years): The Median Age of the Total Population from the 2020 Census for this geographic area. Median age is not a future prediction, it is the actual calculated age from the 2020 Census. Median age is the middle age of the population. Half the population is older than the average age and half is younger. Median Age can relate how young or old a geographic area is compared to others. If one area is 44 and the other is 40, then the first are is an average of 4 years older.37.1
White Population: The White Population is an exact count from the 2020 Census for this geographic area. The numbers for the White Population are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including White. This count includes all who selected White/Caucasian in their response, even if they selected another race as well.1,633,129
Black Population: The Black Population is an exact count from the 2020 Census for this geographic area. The numbers for the Black Population are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including Black or African American. This count includes all who selected Black or African American in their response, even if they selected another race as well.155,813
Indian Population: The American Indian and Alaska Native Population is an exact count from the 2020 Census for this geographic area and not estimates for the future. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including American Indian and Alaska Native. This count includes all who selected American Indian and Alaska Native in their response, even if they selected another race as well.40,968
Asian Population: The Asian Population is an exact count from the 2020 Census for this geographic area, not future projections. On the U.S. Census questionnaire, people were asked to check all races which applied to them, including Chinese, Filipino, Asian Indian, Vietnamese, Korean, Japanese, or Other Asian. This count includes all who selected one of these options in their response, even if they selected another race as well.410,752
Hawaiian Population: The Hawaiian or Pacific Islander Population is an exact count from the 2020 Census for this geographic area and are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including Native Hawaiian and Pacific Islander. This count includes all who selected either Hawaiian or Pacific Islander in their response, even if they selected another race as well.15,286
Hispanic Population: The Hispanic Population is an exact count from the 2020 Census for this geographic area and is not an estimate or future projection. On the 2020 U.S. Census questionnaire, people were first asked for their Ethnicity, including if they were from Hispanic, Latino, or Spanish Origin, including Mexican, Mexican American, Chicano, Puerto Rican, Cuban, or other ethnic origin. This count includes all who affirmed that they were part of this ethnic origin. Respondents who selected this option were also asked to select a race separately and would be counted once in this number as well as the race they chose as well. From the U.S. Census definition, Hispanic is an ethnic origin and not a race.1,119,629
Median age (Male): The Median Age of all Males from the 2020 Census for this geographic area. The Male Median Age is the actual average from the 2020 Census, not an estimate or future projection. Median Age is the average age of the population. Half of the population is older than the average age and the other half is younger. Gender is self-reported by individuals when asked about their sex at birth.35.7
Median age (Female): The Median Age of all Females from the 2020 Census for this geographic area. The Female Median Age is the actual average from the 2020 Census, not an estimate or future projection. Median Age is the average age of the population. Half of the population is older than the average age and the other half is younger. Gender is self-reported by individuals when asked about their sex at birth.38.5
Total Households: Total Number of Households from the 2020 U.S. Census for this geographic area. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.1,158,764
Married-Couple Households: Total Married-Couple Households is based on the 2020 U.S. Census and is not an estimate. Under the U.S. Census Bureau definition, Married Couple Households refers to the count of households where the householder and his or her spouse are listed as members of the same household. It does include same-sex marriage households and the households themselves may also include other individuals, such as children or other relatives. 
Average Household Size for SAN DIEGO County, CA: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.2.75
Average family size of SAN DIEGO County, CA: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.3.12
Total housing units for SAN DIEGO County, CA: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.1,228,505


SAN DIEGO County, CA Covers 51 Cities

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