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ZIP Code Database - Facts & Stats
Data Last Updated: December 1, 2024

POLK County, IA ZIP Codes



POLK County, IA Covers 73 ZIP Codes

ZIP CodeClassificationCityPopulationArea Code(s)
ZIP Code 50007GeneralAlleman497515
ZIP Code 50009GeneralAltoona21,230515
ZIP Code 50021GeneralAnkeny28,807515
ZIP Code 50023GeneralAnkeny43,603515
ZIP Code 50032P.O. BoxBerwick395515
ZIP Code 50035GeneralBondurant8,968515
ZIP Code 50046 *GeneralCambridge1,586515
ZIP Code 50047 *GeneralCarlisle6,021515
ZIP Code 50061 *GeneralCumming1,973515/641
ZIP Code 50073GeneralElkhart1,405515
ZIP Code 50109 *GeneralGranger3,348515
ZIP Code 50111GeneralGrimes16,025515
ZIP Code 50124 *GeneralHuxley4,697515
ZIP Code 50131GeneralJohnston24,434515
ZIP Code 50156 *GeneralMadrid4,662515
ZIP Code 50161 *GeneralMaxwell2,017515
ZIP Code 50168 *GeneralMingo909641
ZIP Code 50169GeneralMitchellville3,372515
ZIP Code 50226GeneralPolk City6,879515
ZIP Code 50228 *GeneralPrairie City2,509515
ZIP Code 50237GeneralRunnells3,153515
ZIP Code 50243P.O. BoxSheldahl297515
ZIP Code 50244 *GeneralSlater1,825515
ZIP Code 50265GeneralWest Des Moines32,187515
ZIP Code 50266GeneralWest Des Moines36,486515
ZIP Code 50301P.O. BoxDes Moines0515
ZIP Code 50302P.O. BoxDes Moines0515
ZIP Code 50303P.O. BoxDes Moines0515
ZIP Code 50304P.O. BoxDes Moines0515
ZIP Code 50305P.O. BoxDes Moines0515
ZIP Code 50306P.O. BoxDes Moines0515
ZIP Code 50309GeneralDes Moines9,532515
ZIP Code 50310GeneralDes Moines30,754515
ZIP Code 50311GeneralDes Moines14,782515
ZIP Code 50312GeneralDes Moines15,485515
ZIP Code 50313GeneralDes Moines17,723515
ZIP Code 50314GeneralDes Moines11,764515
ZIP Code 50315GeneralDes Moines36,693515
ZIP Code 50316GeneralDes Moines16,785515
ZIP Code 50317GeneralDes Moines37,221515
ZIP Code 50318P.O. BoxDes Moines0515
ZIP Code 50319GeneralDes Moines0515
ZIP Code 50320GeneralDes Moines23,369515
ZIP Code 50321GeneralDes Moines7,783515
ZIP Code 50322GeneralUrbandale31,652515
ZIP Code 50323GeneralUrbandale16,616515
ZIP Code 50324GeneralWindsor Heights5,252515
ZIP Code 50325GeneralClive18,619515
ZIP Code 50327GeneralPleasant Hill11,807515
ZIP Code 50328UniqueDes Moines0515
ZIP Code 50331UniqueDes Moines0515
ZIP Code 50334UniqueDes Moines0515
ZIP Code 50336P.O. BoxDes Moines0515
ZIP Code 50340P.O. BoxDes Moines0515
ZIP Code 50359UniqueDes Moines0515
ZIP Code 50360UniqueDes Moines0515
ZIP Code 50361UniqueDes Moines0515
ZIP Code 50362UniqueDes Moines0515
ZIP Code 50363UniqueDes Moines0515
ZIP Code 50364UniqueDes Moines0515
ZIP Code 50367UniqueDes Moines0515
ZIP Code 50368P.O. BoxDes Moines0515
ZIP Code 50380UniqueDes Moines0515
ZIP Code 50381UniqueDes Moines0515
ZIP Code 50391UniqueDes Moines0515
ZIP Code 50392UniqueDes Moines0515
ZIP Code 50393P.O. BoxDes Moines0515
ZIP Code 50395GeneralDes Moines0515
ZIP Code 50936UniqueDes Moines0515
ZIP Code 50940 *UniqueBoone0515
ZIP Code 50947UniqueDes Moines0515
ZIP Code 50980UniqueDes Moines0515
ZIP Code 50981UniqueDes Moines0515

* Indicates a Multi County ZIP Code, whose primary County is something other than Polk, IA.



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.Central
 
Population: The total Population for Polk County, IA, 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. 492,401 (More Details)
Male Population: The sum of all males for Polk County, IA 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.241,976
Female Population: The sum of all females for Polk County, IA 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.250,425
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.36
 
ZIP Codes: The total number of ZIP Codes which at least partially fall inside Polk County, IA. 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.76
Cities: The total number of City names which are associated with ZIP Codes that partially or wholly cross into Polk County, IA. 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.18
Counties: The total number of counties associated with ZIP Codes that are at least partially part of Polk County, IA.1
Area Codes: The total number of Area Codes associated with ZIP Codes in Polk County, IA. 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.1
 
Total Area: The approximate amount of area covered by Polk, IA in square miles. This includes all land and water areas within the legal county boundaries.592 square miles (county)
Land Area: The approximate amount of land area covered by Polk, IA 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. 574 square miles (county)
Water Area: The approximate amount of water area covered by Polk, IA 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.18 square miles (county)

POLK, IA Demographic Information

* Demographic data is based on 2020 Census.

Total population of POLK County, IA: 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.492,401
Male population of POLK County, IA: 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.241,976
Female population of POLK County, IA: 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.250,425
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.36.0
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.373,903
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.35,623
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.2,274
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.24,510
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.302
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.48,055
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.35.2
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.36.9
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.196,891
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 POLK County, IA: 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.2.46
Average family size of POLK County, IA: 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.2.99
Total housing units for POLK County, IA: 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.210,184


POLK County, IA Covers 18 Cities