01860 ZIP Code — Merrimac, MA

Essex County, Massachusetts

ZIP code 01860 is located in Merrimac, Massachusetts, within Essex County. It covers approximately 8.50 square miles and serves a population of 6,717 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 351/978.

About ZIP code 01860

The housing stock consists of a mix of housing types. Most homes were built in the pre-1940, giving the area an established character. Median home value is $462,900. Owner-occupancy is high at 80%, well above the national average.

Median household income is $100,321. 42% 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 near the national average, with 33% of residents holding a bachelor's degree or higher.

Overall, ZIP code 01860 reflects a community defined by high homeownership and a significant Social Security-dependent population.

6,717

population

8.50

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

01860 ZIP code map

Cities in ZIP code 01860

Below are the cities the US Postal Service accepts for ZIP code 01860. Using any city not on this list may result in mail delivery delays.

City	Status
Merrimac	Preferred

Nearby ZIP codes

03858 Newton (2.5 mi) 01913 Amesbury (3.2 mi) 01830 Haverhill (3.6 mi) 01985 West Newbury (3.8 mi) 03865 Plaistow (4.2 mi) 03827 East Kingston (5.5 mi) 03848 Kingston (5.7 mi) 03826 East Hampstead (6.4 mi) 01832 Haverhill (6.7 mi) 01835 Haverhill (6.9 mi) 01950 Newburyport (7.1 mi) 01922 Byfield (7.2 mi)

Demographics updated 05/2026

Population
Total population	6,717
Population density	790 / sq mi
State FIPS	25
County FIPS	009

Geography
Land area	8.50 sq mi
Water area	0.40 sq mi
Latitude	42.8366
Longitude	-71.0116
Timezone	Eastern (ET)
Area code	351/978

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.7%	32.1%	31.3%
$50k – $100k	28.1%	26.4%	25.9%
$100k – $200k	31.5%	27.2%	28.5%
Over $200k	9.8%	14.3%	14.3%

Demographics & statistics

6,717

Population

790

People per sq mi

48.2

Median age

$100,321

Median household income

$45,465

Per capita income

$462,900

Median home value

$1,179

Median monthly rent

79.5%

Home ownership

8.6%

Poverty rate

2.5%

Unemployment

2,235

Housing units

33.2%

Bachelor's or higher

Age distribution

Male Female

221

Under 5

200

233

5–9

211

116

10–14

104

163

15–19

147

220

20–24

199

380

25–34

343

254

35–44

229

590

45–54

534

379

55–59

342

197

60–64

178

437

65–74

395

267

75–84

242

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,233	18.4%
18 and over	5,484	81.6%
65 and over	1,477	22.0%
Median age	48.2 years

Race & ethnicity

White 89.1%

Two or more races 5.4%

Hispanic or Latino 4.9%

Asian 0.6%

Group	Count	%
White	6,292	89.1%
Two or more races	381	5.4%
Hispanic or Latino	347	4.9%
Asian	43	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	30.7%	32.1%	31.3%
$50k – $100k	28.1%	26.4%	25.9%
$100k – $200k	31.5%	27.2%	28.5%
Over $200k	9.8%	14.3%	14.3%

Under $10k 2.5%

$10k–$15k 0.9%

$15k–$25k 3.6%

$25k–$35k 4.4%

$35k–$50k 13.5%

$50k–$75k 9.6%

$75k–$100k 15.2%

$100k–$150k 19.5%

$150k–$200k 20.3%

$200k+ 10.4%

Range	% of households
Under $10k	2.5%
$10k–$15k	0.9%
$15k–$25k	3.6%
$25k–$35k	4.4%
$35k–$50k	13.5%
$50k–$75k	9.6%
$75k–$100k	15.2%
$100k–$150k	19.5%
$150k–$200k	20.3%
$200k+	10.4%
Median income	$100,321

Housing

Home values

Under $50k 6.2%

$50k–$100k 4.6%

$100k–$150k 3.4%

$150k–$200k 2.1%

$200k–$300k 6.5%

$300k–$500k 32.8%

$500k–$1M 43.6%

$1M+ 0.8%

Housing overview

Metric	Value
Median home value	$462,900
Median rent / month	$1,179
Owner occupied	79.5%
Renter occupied	20.5%
Vacant	4.8%
Single-family detached	60.0%
Large apartment buildings	1.8%
Mobile homes	9.9%
Median rooms	6.0
Avg household size (owned)	2.54

Year built

Era	%
2020 or later	0.9%
2010–2019	6.4%
2000–2009	12.4%
1990–1999	18.4%
1980–1989	11.5%
1970–1979	7.3%
1960–1969	6.6%
1950–1959	7.1%
1940–1949	5.8%
1939 or earlier	23.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.0%
2 bedrooms	31.7%
3 bedrooms	44.9%
4 bedrooms	17.3%
5+ bedrooms	3.1%

Vehicles per household

Vehicles	% of households
No vehicle	4.9%
1 vehicle	25.7%
2 vehicles	53.2%
3 or more	16.2%

Heating fuel

Fuel type	%
Utility gas	61.6%
Electricity	4.5%
Propane / LP gas	8.7%
Fuel oil	23.8%
Wood	0.8%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	1,421	53.7%
Cohabiting couple	316	12.0%
Male householder, no spouse	436	16.5%
Female householder, no spouse	471	17.8%
Households with children under 18	750	28.4%
Households with seniors (65+)	1,027	38.8%
Average household size	2.53

Marital status

Status	Male	Female
Never married	25.7%	25.4%
Married	56.2%	51.6%
Separated	0.6%	0.8%
Widowed	0.4%	8.5%
Divorced	17.1%	13.6%

Education

Less than 9th grade 0.9%

Some HS, no diploma 4.5%

HS graduate 25.1%

Some college, no degree 25.3%

Associate's degree 11.0%

Bachelor's degree 23.9%

Graduate / professional 9.3%

Metric	%
HS diploma or higher	94.5%
Bachelor's or higher	33.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	150	13.4%
Kindergarten	0	0.0%
Elementary school	529	47.2%
High school	231	20.6%
College / grad school	210	18.8%

Employment

Industry of employment

Education & healthcare 20.4%

Manufacturing 16.0%

Retail trade 14.6%

Construction 12.1%

Arts, food & hospitality 10.5%

Professional & management 7.3%

Transportation & utilities 7.1%

Other services 5.7%

Wholesale trade 2.5%

Finance & real estate 2.2%

Public administration 1.3%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	41.2%
Service	13.2%
Sales & office	23.8%
Natural resources & construction	5.3%
Production & transportation	16.5%

Employment type

Type	%
Private sector	83.9%
Government	9.6%
Self-employed	6.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.1%
Carpool	7.0%
Public transit	0.3%
Walk	1.3%
Work from home	10.4%
Other means	3.0%
Avg commute (minutes)	27.7

Poverty

All people 8.6%

Under 18 years 21.8%

18 and over 5.7%

Married-couple families 1.2%

Female-led households 43.5%

Income support

Source	% of households
Social Security	41.9%
Retirement income	27.5%
Supplemental Security	9.8%
Cash public assistance	6.7%
Food stamps / SNAP	13.0%

Health indicators

Condition	%
Obesity	25.4%
High blood pressure	26.2%
High cholesterol	30.2%
Diabetes	7.3%
Heart disease	5.2%
Stroke	2.4%
Asthma	10.9%
Arthritis	25.1%
Kidney disease	2.4%
Pulmonary disease	5.1%
Cancer	7.2%

Behavior / access	%
Smoking	12.5%
Binge drinking	17.5%
No physical activity	18.8%
Less than 7 hrs sleep	28.6%
Depression	19.6%
Fair or poor health	9.6%
Poor mental health	13.3%
Poor physical health	8.1%
No health insurance	5.3%
Visited doctor (checkup)	80.0%
Visited dentist	79.1%
Cholesterol screening	92.4%
Teeth loss	9.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	319	5.8%

Disability	%
Any disability	12.4%
Under 18	2.4%
18–64 years	9.0%
65 and over	29.8%

Health insurance coverage

Type	%
Private insurance	75.3%
Public insurance	40.6%
No insurance	3.0%
Uninsured under 19	3.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,296	93.7%
Spanish	96	1.5%
Other Indo-European	14	0.2%
Asian & Pacific Islander	82	1.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,452	96.1%
Born in same state	6,344	94.4%
Born in different state	5,471	81.5%
Foreign born	108	1.6%
Naturalized citizen	265	3.9%
Not a US citizen	222	83.8%

Ancestry

Ancestry	Count	%
Italian	1,602	23.8%
French	1,093	16.3%
Arab	451	6.7%

Ancestry	Count	%
German	199	3%
Polish	25	0.4%
Norwegian	22	0.3%

Technology access

Metric	% of households
Computer access	39.4%
Internet access	91.2%

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

Frequently asked questions about ZIP code 01860

What city is ZIP code 01860 in?

ZIP code 01860 is primarily assigned to Merrimac, Massachusetts.

What county is ZIP code 01860 in?

ZIP code 01860 falls within Essex County, Massachusetts.

Does ZIP code 01860 have a large retiree population?

42% of households in ZIP code 01860 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 01860?

The median home value in ZIP code 01860 is $462,900.

What is the population of ZIP code 01860?

ZIP code 01860 has an estimated population of 6,717 residents, with a density of 790 people per square mile.

What is the median household income in ZIP code 01860?

The median household income in ZIP code 01860 is $100,321, above the national median of ~$75,000.

What timezone is ZIP code 01860 in?

ZIP code 01860 observes the EST timezone.