01863 ZIP Code — North Chelmsford, MA

Middlesex County, Massachusetts

ZIP code 01863 is located in North Chelmsford, Massachusetts, within Middlesex County. It covers approximately 4.46 square miles and serves a population of 9,570 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 978/351.

About ZIP code 01863

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $427,300. Owner-occupancy is high at 84%, well above the national average.

Median household income is $128,682. The poverty rate of 3% is below the national average. 32% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 28 minutes is near the national average.

Educational attainment is high — 46% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 01863 reflects a community defined by high homeownership and a significant Social Security-dependent population.

9,570

population

4.46

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

01863 ZIP code map

Cities in ZIP code 01863

Below are the cities the US Postal Service accepts for ZIP code 01863. Using any city not on this list may result in mail delivery delays.

City	Status
North Chelmsford	Acceptable
North Chelmsford	Preferred

Nearby ZIP codes

01854 Lowell (2.5 mi) 01851 Lowell (2.6 mi) 01879 Tyngsboro (2.9 mi) 01824 Chelmsford (3.5 mi) 01886 Westford (4 mi) 01850 Lowell (4.6 mi) 01852 Lowell (4.7 mi) 01826 Dracut (5.8 mi) 01827 Dunstable (6.5 mi) 01862 North Billerica (6.6 mi) 01741 Carlisle (7.1 mi) 01718 Acton (8 mi)

Demographics updated 05/2026

Population
Total population	9,570
Population density	2,146 / sq mi
State FIPS	25
County FIPS	017

Geography
Land area	4.46 sq mi
Water area	0.32 sq mi
Latitude	42.6314
Longitude	-71.3886
Timezone	Eastern (ET)
Area code	978/351

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	23.8%	31.3%
$50k – $100k	25.5%	23.1%	25.9%
$100k – $200k	42.0%	32.1%	28.5%
Over $200k	13.5%	20.9%	14.3%

Demographics & statistics

9,570

Population

2,146

People per sq mi

42.0

Median age

$128,682

Median household income

$52,711

Per capita income

$427,300

Median home value

$1,412

Median monthly rent

84.2%

Home ownership

3.1%

Poverty rate

3.9%

Unemployment

3,115

Housing units

45.5%

Bachelor's or higher

Age distribution

Male Female

187

Under 5

196

278

5–9

292

296

10–14

311

325

15–19

342

215

20–24

226

633

25–34

666

576

35–44

606

644

45–54

678

254

55–59

268

342

60–64

359

550

65–74

579

257

75–84

270

107

85+

113

← Male

Female →

Age summary

Group	Count	%
Under 18	1,909	19.9%
18 and over	7,661	80.1%
65 and over	1,876	19.6%
Median age	42.0 years

Race & ethnicity

White 80.8%

Asian 8.6%

Hispanic or Latino 3.4%

Two or more races 3%

Black or African American 2.5%

Other race 1.7%

American Indian / Alaska Native 0.1%

Group	Count	%
White	8,001	80.8%
Asian	853	8.6%
Hispanic or Latino	333	3.4%
Two or more races	293	3%
Black or African American	248	2.5%
Other race	164	1.7%
American Indian / Alaska Native	11	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.0%	23.8%	31.3%
$50k – $100k	25.5%	23.1%	25.9%
$100k – $200k	42.0%	32.1%	28.5%
Over $200k	13.5%	20.9%	14.3%

Under $10k 2.8%

$10k–$15k 1.3%

$15k–$25k 2.4%

$25k–$35k 3.4%

$35k–$50k 4.8%

$50k–$75k 11.4%

$75k–$100k 11.2%

$100k–$150k 24.3%

$150k–$200k 19.3%

$200k+ 19.1%

Range	% of households
Under $10k	2.8%
$10k–$15k	1.3%
$15k–$25k	2.4%
$25k–$35k	3.4%
$35k–$50k	4.8%
$50k–$75k	11.4%
$75k–$100k	11.2%
$100k–$150k	24.3%
$150k–$200k	19.3%
$200k+	19.1%
Median income	$128,682

Housing

Home values

Under $50k 1.0%

$50k–$100k 0.4%

$100k–$150k 2.2%

$150k–$200k 3.3%

$200k–$300k 8.2%

$300k–$500k 53.4%

$500k–$1M 31.6%

Housing overview

Metric	Value
Median home value	$427,300
Median rent / month	$1,412
Owner occupied	84.2%
Renter occupied	15.8%
Vacant	2.0%
Single-family detached	54.1%
Large apartment buildings	8.6%
Mobile homes	0.0%
Median rooms	5.5
Avg household size (owned)	2.75

Year built

Era	%
2020 or later	0.0%
2010–2019	2.8%
2000–2009	7.9%
1990–1999	10.5%
1980–1989	23.2%
1970–1979	9.0%
1960–1969	12.3%
1950–1959	14.0%
1940–1949	4.5%
1939 or earlier	15.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	5.6%
2 bedrooms	42.5%
3 bedrooms	33.1%
4 bedrooms	16.2%
5+ bedrooms	2.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	31.3%
2 vehicles	39.7%
3 or more	25.9%

Heating fuel

Fuel type	%
Utility gas	75.9%
Electricity	7.6%
Propane / LP gas	3.4%
Fuel oil	11.7%
Wood	0.3%
No fuel used	0.9%

Households & families

Household type	Count	%
Married-couple family	1,888	52.3%
Cohabiting couple	401	11.1%
Male householder, no spouse	595	16.5%
Female householder, no spouse	727	20.1%
Households with children under 18	1,318	36.5%
Households with seniors (65+)	1,317	36.5%
Average household size	2.63

Marital status

Status	Male	Female
Never married	31.6%	26.5%
Married	53.2%	52.4%
Separated	1.5%	2.0%
Widowed	2.4%	4.7%
Divorced	11.4%	14.4%

Education

Less than 9th grade 1.3%

Some HS, no diploma 2.6%

HS graduate 20.4%

Some college, no degree 20.8%

Associate's degree 9.4%

Bachelor's degree 25.6%

Graduate / professional 19.9%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	45.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	54	2.5%
Kindergarten	115	5.3%
Elementary school	972	45.2%
High school	573	26.6%
College / grad school	437	20.3%

Employment

Industry of employment

Education & healthcare 20.9%

Professional & management 18.2%

Manufacturing 13.1%

Retail trade 10.0%

Finance & real estate 7.3%

Arts, food & hospitality 7.0%

Construction 6.0%

Other services 4.4%

Transportation & utilities 3.8%

Information 3.0%

Agriculture & mining 2.8%

Public administration 2.2%

Wholesale trade 1.2%

Occupation

Category	%
Management, business & arts	57.3%
Service	13.0%
Sales & office	14.4%
Natural resources & construction	8.0%
Production & transportation	7.3%

Employment type

Type	%
Private sector	82.9%
Government	12.8%
Self-employed	4.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	79.6%
Carpool	3.6%
Public transit	0.6%
Walk	0.4%
Work from home	14.0%
Other means	1.8%
Avg commute (minutes)	28.4

Poverty

All people 3.1%

Under 18 years 3.8%

18 and over 3.0%

Married-couple families 1.2%

Female-led households 7.2%

Income support

Source	% of households
Social Security	32.3%
Retirement income	20.2%
Supplemental Security	2.2%
Cash public assistance	0.7%
Food stamps / SNAP	5.9%

Health indicators

Condition	%
Obesity	21.0%
High blood pressure	27.2%
High cholesterol	30.1%
Diabetes	7.3%
Heart disease	5.1%
Stroke	2.3%
Asthma	9.8%
Arthritis	22.0%
Kidney disease	2.4%
Pulmonary disease	4.7%
Cancer	7.4%

Behavior / access	%
Smoking	10.4%
Binge drinking	16.1%
No physical activity	16.1%
Less than 7 hrs sleep	28.2%
Depression	17.9%
Fair or poor health	8.6%
Poor mental health	12.3%
Poor physical health	7.4%
No health insurance	5.1%
Visited doctor (checkup)	76.5%
Visited dentist	76.1%
Cholesterol screening	92.4%
Teeth loss	9.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	355	4.6%

Disability	%
Any disability	11.1%
Under 18	6.1%
18–64 years	7.5%
65 and over	27.5%

Health insurance coverage

Type	%
Private insurance	86.0%
Public insurance	26.5%
No insurance	1.4%
Uninsured under 19	1.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,187	96.0%
Spanish	268	2.9%
Other Indo-European	1	0.0%
Asian & Pacific Islander	124	1.3%
Other languages	143	1.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,549	89.3%
Born in same state	8,443	88.2%
Born in different state	6,480	67.7%
Foreign born	106	1.1%
Naturalized citizen	1,021	10.7%
Not a US citizen	754	73.8%

Ancestry

Ancestry	Count	%
Italian	2,166	22.6%
French	1,144	12%
German	654	6.8%
Arab	226	2.4%

Ancestry	Count	%
Polish	79	0.8%
Norwegian	68	0.7%
English	12	0.1%
Irish	9	0.1%

Technology access

Metric	% of households
Computer access	37.7%
Internet access	97.7%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 01863

What city is ZIP code 01863 in?

ZIP code 01863 is primarily assigned to North Chelmsford, Massachusetts.

What county is ZIP code 01863 in?

ZIP code 01863 falls within Middlesex County, Massachusetts.

Is ZIP code 01863 mostly owner-occupied?

84% of occupied units in ZIP code 01863 are owner-occupied, well above the national average.

How educated is the population of ZIP code 01863?

46% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 01863?

The median household income in ZIP code 01863 is $128,682, above the national median of ~$75,000.

What is the typical home value in ZIP code 01863?

The median home value in ZIP code 01863 is $427,300.

What timezone is ZIP code 01863 in?

ZIP code 01863 observes the EST timezone.