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ZIP Code 01821

Billerica, Massachusetts, United States

Standard ZIP Eastern Time (ET)
30,143
Population
701.4
Per sq mile
Middlesex
County

About ZIP Code 01821

ZIP code 01821 is assigned to Billerica, Middlesex County, Massachusetts, United States. It falls in the Eastern Time (ET) zone. The estimated population of this ZIP code area is 30,143 with a density of 701.4 people per square mile.

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Location Details

ZIP Code01821
CityBillerica
CountyMiddlesex County
StateMassachusetts
CountryUnited States
TimezoneEastern Time (ET)
Timezone IDAmerica/New_York
Latitude42.5500
Longitude-71.2521
ZIP TypeStandard ZIP

Post Office

Address460 BOSTON RD
CityBILLERICA
StateMA

Nearby ZIP Codes in Massachusetts

01862
North Billerica
01730
Bedford
01876
Tewksbury
01887
Wilmington
01803
Burlington
01731
Hanscom Afb

Frequently Asked Questions

What city is ZIP code 01821 in?

ZIP code 01821 is in Billerica, Middlesex County, Massachusetts, United States.

What county is ZIP code 01821 in?

ZIP code 01821 is in Middlesex County, Massachusetts.

What timezone is ZIP code 01821 in?

ZIP code 01821 is in the Eastern Time (ET) zone (America/New_York).

What is the population of ZIP code 01821?

The estimated population of ZIP code 01821 is 30,143 people with a density of 701.4 people per square mile.

What state is ZIP code 01821 in?

ZIP code 01821 is in Massachusetts (MA), United States.

📋 Data Source: United States Postal Service (USPS) & US Census Bureau (ZCTA data) · Public domain government data. For official ZIP code information visit tools.usps.com. Data is periodically updated but may not reflect the most recent changes.