ZIP Code 01821 - Billerica Massachusetts

ZIP Code 01821 is located in Billerica Massachusetts. Portions of 01821 are also in Pinehurst and Bedford. 01821 is entirely within Middlesex County. Regionally, it is located in Metro Boston.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 01821 Quick Stats

ZIP Code NameBillerica
Primary CountyMiddlesex County
ZIP Code TypeStandard
Population (2022)30,854
Area Code(s)339 / 351 / 781 / 978
Current Time

ZIP Code 01821 Map

01821 Demographics

01821 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Massachusetts based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 01821 is White. The majority race/ethnicity attending public schools in 01821 is White. The current unemployment level in 01821 is 3.2%.

Population Growth Rate0.00%
Population Density1,828 People per Square Mile
Total Households10,743
Percentage High Income Households4.7%
Median Houshold Income (2021)$126,146
Average Adjusted Gross Income (2020)$85,540
Current Unemployment Rate (February 2024)3.2%
Majority Race/EthnictyWhite - 83.23%
Public School Majority Race/EthnictyWhite - 78.36%

01821 Race/Ethnicty Breakdown

Native American00%
Hawaiian/Pac. Islander440.14%

01821 Public School Race/Ethnicty Breakdown

Native American90.18%
Hawaiian/Pac. Islander30.06%

01821 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College1,1435.81%
Bachelor Degree4,10820.88%
High School Diploma6,52933.18%
No High School Diploma1870.95%
GED or Alternate5162.62%
1 or More Years of College2,72113.83%
Associates Degree2,24311.4%
Masters Degree1,7949.12%
Professional Degree1830.93%
Doctorate Degree2531.29%

01821 Geography

Adjacent ZIP Codes
Cities/Towns in 01821
RegionMetro Boston
Metropolitan/Micropolitan Stat AreaBoston-Cambridge-Newton, MA-NH
Time ZoneEastern Standard Time
IANA TimezoneAmerica/New_York
Area17 Square Miles

01821 Politics

US Congressional Districts in 01821
Massachusetts State Senate Districts in 01821
Massachusetts State House of Representatives Districts in 01821

01821 Weather and Climate Data

Plant Hardiness ZoneZone 6a: -10F to -5F
Average First Frost DateOctober 1 - 10
Average Last Frost DateMay 1 - 10
Koppen-Geiger Climate ZoneDfb - Humid Continental Mild Summer, Wet All Year
Ecoregion59c - Southern New England Coastal Plains and Hills

01821 Annual Climate Data

Avg Min Temp (°F)16182636465561595139322238
Avg Max Temp (°F)35384758697883817362514059
Avg Precip (In.)4.183.364.164.083.693.613.633.53.794.154.454.0846.68

Most Popular ZIP Code Searches in Massachusetts