US ZIP Code Map

ZIP code

01821

Billerica, MA

STANDARD

01821 covers Billerica in Middlesex County, with 30,203 people in the ACS estimate.

Map of 01821, Billerica

ZIP code map

ACS population

30,203

Median household income

$142,564

Median home value

$581,300

About ZIP code 01821

Type

STANDARD

City

Billerica

County

Middlesex County

Timezone

America/New_York

Area codes

339, 351, 781, 978

Land area

16.6 sq mi

Water area

0.40 sq mi

Households

11,666

Median gross rent

$2,211

More enterprise fields

Timezone
America/New_York
Area Codes
339, 351, 781, 978
World Region
NA
Country
US
Housing Count
11,378
Irs Estimated Households
16,920
Population Count
30,909
Irs Estimated Population
29,580

People in 01821

Race

  • White25,158
  • Black or African American1,115
  • American Indian or Alaska Native58
  • Asian2,545
  • Native Hawaiian and Pacific Islander4
  • Other race557
  • Two or more races1,472

Hispanic or Latino (any race): 1,076

Age

  • Under 103,076
  • 10 to 193,472
  • 20 to 293,646
  • 30 to 394,225
  • 40 to 493,806
  • 50 to 594,949
  • 60 to 693,967
  • 70 to 792,563
  • 80 and older1,205

Income and housing in 01821

Poverty rate

4.1%

Median earnings

$65,056

Median household income

$142,564

Median home value

$581,300

Median gross rent

$2,211

Education

  • High school graduate94.7%
  • Bachelor's degree41.7%
  • Graduate degree16.4%

Places covering 01821

Cities and places

Counties

76.2% of this ZIP is outside city limits (a real overlap row, not missing data).

Population history for 01821

IRS populationACS population
35,65717,829020052023

Hover a year for IRS and ACS values.

ZIP codes near 01821

  1. 01822Billerica0.0 miPop — · Income —
  2. 01865Nutting Lake0.9 miPop 397 · Income —
  3. 01866Pinehurst2.1 miPop 178 · Income —
  4. 01862North Billerica2.9 miPop 11,703 · Income $131,214
  5. 01876Tewksbury4.4 miPop 30,962 · Income $126,795
  6. 01803Burlington4.6 miPop 26,068 · Income $142,421
  7. 01805Burlington4.6 miPop — · Income —
  8. 01741Carlisle4.8 miPop 5,209 · Income $250,001
  9. 01730Bedford4.8 miPop 14,478 · Income $158,286
  10. 01887Wilmington5.1 miPop 23,195 · Income $161,473
  11. 01824Chelmsford5.8 miPop 26,628 · Income $141,337
  12. 01852Lowell5.9 miPop 36,700 · Income $77,058

ZIP code 01821 FAQ

What city is ZIP code 01821 in?
01821 is in Billerica, MA.
What county is 01821 in?
01821 is in Middlesex County.
What is the median household income in 01821?
The median household income in 01821 is $142,564.
Which ZIP codes are near 01821?
Use the radius tool on this page to list ZIP codes within a chosen distance of 01821.