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

MIDDLESEX County, MA ZIP Codes



MIDDLESEX County, MA Covers 108 ZIP Codes

ZIP CodeClassificationCityPopulationTimezoneArea Code(s)
ZIP Code 01431GeneralAshby3,193Eastern351/978
ZIP Code 01432GeneralAyer8,221Eastern978
ZIP Code 01434GeneralDevens1,652Eastern978
ZIP Code 01450GeneralGroton11,298Eastern978/351
ZIP Code 01460GeneralLittleton10,141Eastern978/781/508
ZIP Code 01463GeneralPepperell11,621Eastern978/351
ZIP Code 01464GeneralShirley7,427Eastern978/351
ZIP Code 01469GeneralTownsend7,055Eastern978
ZIP Code 01472P.O. BoxWest Groton0Eastern978/351
ZIP Code 01474GeneralWest Townsend2,072Eastern978
ZIP Code 01701GeneralFramingham33,005Eastern508/774/978/781
ZIP Code 01702GeneralFramingham39,515Eastern508/774/978/781
ZIP Code 01703P.O. BoxFramingham0Eastern508/774/978/781
ZIP Code 01704P.O. BoxFramingham0Eastern508/774/978/781
ZIP Code 01705P.O. BoxFramingham0Eastern508/774/978/781
ZIP Code 01718GeneralActon688Eastern978/351/508/781
ZIP Code 01719GeneralBoxborough5,506Eastern978/351/508
ZIP Code 01720GeneralActon23,232Eastern978/351/508/781
ZIP Code 01721GeneralAshland18,832Eastern508/774/978/781
ZIP Code 01730GeneralBedford14,566Eastern781/857
ZIP Code 01731GeneralHanscom AFB1,555Eastern781/857
ZIP Code 01741GeneralCarlisle5,237Eastern978/351/508/781
ZIP Code 01742GeneralConcord18,545Eastern978
ZIP Code 01746GeneralHolliston14,996Eastern508/774
ZIP Code 01748GeneralHopkinton18,758Eastern508/774
ZIP Code 01749GeneralHudson20,092Eastern978/508/351
ZIP Code 01752GeneralMarlborough41,793Eastern508/774/978
ZIP Code 01754GeneralMaynard10,730Eastern978
ZIP Code 01760GeneralNatick36,659Eastern508/774
ZIP Code 01770GeneralSherborn4,401Eastern508
ZIP Code 01773GeneralLincoln5,651Eastern781
ZIP Code 01775GeneralStow7,190Eastern978
ZIP Code 01776GeneralSudbury18,934Eastern978
ZIP Code 01778GeneralWayland14,132Eastern508/774
ZIP Code 01784P.O. BoxWoodville0Eastern508/774
ZIP Code 01801GeneralWoburn40,891Eastern781/617/978/339
ZIP Code 01803GeneralBurlington26,074Eastern781/339
ZIP Code 01805UniqueBurlington0Eastern781/339
ZIP Code 01813UniqueWoburn0Eastern781/617/978/339
ZIP Code 01815UniqueWoburn0Eastern781/617/978/339
ZIP Code 01821GeneralBillerica30,909Eastern978/508
ZIP Code 01822P.O. BoxBillerica0Eastern978/508
ZIP Code 01824GeneralChelmsford26,881Eastern978/781
ZIP Code 01826GeneralDracut32,689Eastern978/351/781
ZIP Code 01827GeneralDunstable3,358Eastern978/351
ZIP Code 01850GeneralLowell16,670Eastern978/351/781
ZIP Code 01851GeneralLowell32,691Eastern978/781
ZIP Code 01852GeneralLowell36,708Eastern978/351/781
ZIP Code 01853P.O. BoxLowell0Eastern978/351/781
ZIP Code 01854GeneralLowell29,561Eastern978/351
ZIP Code 01862GeneralNorth Billerica11,430Eastern978/508
ZIP Code 01863GeneralNorth Chelmsford9,536Eastern978/351
ZIP Code 01864GeneralNorth Reading15,554Eastern978
ZIP Code 01865P.O. BoxNutting Lake0Eastern978/508
ZIP Code 01866P.O. BoxPinehurst0Eastern978/508
ZIP Code 01867GeneralReading25,522Eastern781
ZIP Code 01876GeneralTewksbury31,105Eastern978/351/781
ZIP Code 01879GeneralTyngsboro12,368Eastern978/351
ZIP Code 01880GeneralWakefield27,071Eastern781/339
ZIP Code 01886GeneralWestford24,618Eastern978/351/508
ZIP Code 01887GeneralWilmington23,349Eastern978
ZIP Code 01888P.O. BoxWoburn0Eastern781/617/978/339
ZIP Code 01889UniqueNorth Reading0Eastern978
ZIP Code 01890GeneralWinchester22,970Eastern781
ZIP Code 02138GeneralCambridge37,982Eastern617/857/508
ZIP Code 02139GeneralCambridge39,525Eastern617/781/857/339/978/508
ZIP Code 02140GeneralCambridge21,447Eastern617
ZIP Code 02141GeneralCambridge15,130Eastern617/781/857/339/978/508
ZIP Code 02142GeneralCambridge4,499Eastern617/781/857/339/978/508
ZIP Code 02143GeneralSomerville26,022Eastern617/857
ZIP Code 02144GeneralSomerville25,497Eastern617/857
ZIP Code 02145GeneralSomerville27,520Eastern617/857
ZIP Code 02148GeneralMalden66,274Eastern781/617/857/339
ZIP Code 02149GeneralEverett49,075Eastern617/857
ZIP Code 02153P.O. BoxMedford0Eastern617/857
ZIP Code 02155GeneralMedford61,483Eastern781/339/617
ZIP Code 02156P.O. BoxWest Medford0Eastern781/339/617
ZIP Code 02176GeneralMelrose29,817Eastern781/339/617
ZIP Code 02180GeneralStoneham23,244Eastern781/617
ZIP Code 02238P.O. BoxCambridge0Eastern617/781/857/339/978/508
ZIP Code 02420GeneralLexington15,502Eastern781/339
ZIP Code 02421GeneralLexington18,950Eastern781/339
ZIP Code 02451GeneralWaltham17,953Eastern781/617/339/978/508
ZIP Code 02452GeneralWaltham15,340Eastern781/617/339/978/508
ZIP Code 02453GeneralWaltham31,854Eastern781/617/339/978/508
ZIP Code 02454P.O. BoxWaltham0Eastern781/617/339/978/508
ZIP Code 02455P.O. BoxNorth Waltham0Eastern617/781/857/339/978/508
ZIP Code 02456P.O. BoxNew Town0Eastern617/857/508
ZIP Code 02458GeneralNewton12,817Eastern617/857/339
ZIP Code 02459GeneralNewton Center19,017Eastern857/617
ZIP Code 02460GeneralNewtonville9,204Eastern617/857/339
ZIP Code 02461GeneralNewton Highlands7,430Eastern617
ZIP Code 02462GeneralNewton Lower Falls1,569Eastern617
ZIP Code 02464GeneralNewton Upper Falls3,193Eastern617
ZIP Code 02465GeneralWest Newton12,415Eastern617/857/339
ZIP Code 02466GeneralAuburndale8,434Eastern617
ZIP Code 02467GeneralChestnut Hill22,626Eastern857/617
ZIP Code 02468GeneralWaban5,713Eastern617/781
ZIP Code 02471P.O. BoxWatertown0Eastern617/857
ZIP Code 02472GeneralWatertown35,392Eastern617/857
ZIP Code 02474GeneralArlington28,551Eastern781/339
ZIP Code 02475P.O. BoxArlington Heights0Eastern781/339
ZIP Code 02476GeneralArlington17,757Eastern781/339
ZIP Code 02477UniqueWatertown0Eastern617/857
ZIP Code 02478GeneralBelmont27,286Eastern617/857
ZIP Code 02479P.O. BoxWaverley0Eastern781/339
ZIP Code 02493GeneralWeston11,851Eastern617
ZIP Code 02495P.O. BoxNonantum0Eastern617/857/339


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.Eastern
 
Population: The total Population for Middlesex County, MA, 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. 1,632,002 (More Details)
Male Population: The sum of all males for Middlesex County, MA 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.797,539
Female Population: The sum of all females for Middlesex County, MA 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.834,463
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.39
 
ZIP Codes: The total number of ZIP Codes which at least partially fall inside Middlesex County, MA. 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.108
Cities: The total number of City names which are associated with ZIP Codes that partially or wholly cross into Middlesex County, MA. 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.78
Counties: The total number of counties associated with ZIP Codes that are at least partially part of Middlesex County, MA.1
Area Codes: The total number of Area Codes associated with ZIP Codes in Middlesex County, MA. 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.8
 
Total Area: The approximate amount of area covered by Middlesex, MA in square miles. This includes all land and water areas within the legal county boundaries.847 square miles (county)
Land Area: The approximate amount of land area covered by Middlesex, MA 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. 818 square miles (county)
Water Area: The approximate amount of water area covered by Middlesex, MA 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.29 square miles (county)

MIDDLESEX, MA Demographic Information

* Demographic data is based on 2020 Census.

Total population of MIDDLESEX County, MA: 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.1,632,002
Male population of MIDDLESEX County, MA: 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.797,539
Female population of MIDDLESEX County, MA: 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.834,463
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.38.6
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.1,112,445
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.84,670
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.3,676
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.210,462
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.444
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.143,245
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.37.3
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.39.9
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.625,916
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 MIDDLESEX County, MA: 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.2.52
Average family size of MIDDLESEX County, MA: 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 MIDDLESEX County, MA: 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.658,283


MIDDLESEX County, MA Covers 78 Cities