06447 ZIP Code — Marlborough, CT

Hartford County, Connecticut

ZIP code 06447 is located in Marlborough, Connecticut, within Hartford County. It covers approximately 23.35 square miles and serves a population of 6,134 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 860.

About ZIP code 06447

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $366,700. Owner-occupancy is high at 91%, well above the national average.

The gap between median ($134,643) and mean household income suggests income inequality — a small number of higher earners pull the average up.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 30 minutes is near the national average. Remote work is prevalent — 22% of workers work from home.

Educational attainment is high — 51% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 06447 reflects a community defined by a highly educated population, high homeownership, and a high rate of remote workers.

6,134

population

23.35

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

06447 ZIP code map

Cities in ZIP code 06447

Below are the cities the US Postal Service accepts for ZIP code 06447. Using any city not on this list may result in mail delivery delays.

City	Status
Marlborough	Acceptable
Marlborough	Acceptable

Demographics updated 05/2026

Population
Total population	6,134
Population density	263 / sq mi
State FIPS	09
County FIPS	003

Geography
Land area	23.35 sq mi
Water area	0.17 sq mi
Latitude	41.6379
Longitude	-72.4559
Timezone	Eastern (ET)
Area code	860

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.4%	34.0%	32.0%
$50k – $100k	33.2%	28.1%	27.7%
$100k – $200k	29.4%	27.2%	27.1%
Over $200k	24.1%	10.7%	13.2%

Demographics & statistics

6,134

Population

263

People per sq mi

42.0

Median age

$134,643

Median household income

$60,893

Per capita income

$366,700

Median home value

$1,363

Median monthly rent

91.3%

Home ownership

9.0%

Poverty rate

8.5%

Unemployment

2,012

Housing units

51.0%

Bachelor's or higher

Age distribution

Male Female

156

Under 5

152

137

5–9

133

246

10–14

239

212

15–19

206

194

20–24

188

270

25–34

263

438

35–44

426

442

45–54

430

329

55–59

320

178

60–64

172

281

65–74

274

161

75–84

156

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,431	23.3%
18 and over	4,703	76.7%
65 and over	1,003	16.4%
Median age	42.0 years

Race & ethnicity

White 76.4%

Hispanic or Latino 8.6%

Two or more races 8%

Asian 4.4%

Black or African American 1.7%

Other race 0.9%

Group	Count	%
White	5,127	76.4%
Hispanic or Latino	577	8.6%
Two or more races	535	8%
Asian	295	4.4%
Black or African American	116	1.7%
Other race	61	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.4%	34.0%	32.0%
$50k – $100k	33.2%	28.1%	27.7%
$100k – $200k	29.4%	27.2%	27.1%
Over $200k	24.1%	10.7%	13.2%

Under $10k 0.8%

$10k–$15k 0.6%

$25k–$35k 4.2%

$35k–$50k 4.7%

$50k–$75k 14.7%

$75k–$100k 12.1%

$100k–$150k 20.1%

$150k–$200k 9.2%

$200k+ 33.4%

Range	% of households
Under $10k	0.8%
$10k–$15k	0.6%
$25k–$35k	4.2%
$35k–$50k	4.7%
$50k–$75k	14.7%
$75k–$100k	12.1%
$100k–$150k	20.1%
$150k–$200k	9.2%
$200k+	33.4%
Median income	$134,643

Housing

Home values

Under $50k 1.6%

$100k–$150k 0.6%

$150k–$200k 0.7%

$200k–$300k 30.3%

$300k–$500k 52.3%

$500k–$1M 12.1%

$1M+ 2.4%

Housing overview

Metric	Value
Median home value	$366,700
Median rent / month	$1,363
Owner occupied	91.3%
Renter occupied	8.7%
Vacant	4.5%
Single-family detached	88.7%
Large apartment buildings	2.1%
Mobile homes	0.0%
Median rooms	6.9
Avg household size (owned)	2.94

Year built

Era	%
2020 or later	0.0%
2010–2019	1.5%
2000–2009	13.3%
1990–1999	12.1%
1980–1989	18.3%
1970–1979	23.6%
1960–1969	8.2%
1950–1959	10.8%
1940–1949	5.2%
1939 or earlier	6.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	2.9%
2 bedrooms	16.3%
3 bedrooms	50.4%
4 bedrooms	27.1%
5+ bedrooms	2.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.6%
1 vehicle	17.3%
2 vehicles	43.9%
3 or more	38.2%

Heating fuel

Fuel type	%
Utility gas	6.4%
Electricity	11.4%
Propane / LP gas	11.5%
Fuel oil	62.1%
Wood	2.9%

Households & families

Household type	Count	%
Married-couple family	1,481	70.7%
Cohabiting couple	88	4.2%
Male householder, no spouse	197	9.4%
Female householder, no spouse	330	15.7%
Households with children under 18	856	40.8%
Households with seniors (65+)	601	28.7%
Average household size	2.87

Marital status

Status	Male	Female
Never married	33.4%	21.9%
Married	59.2%	62.0%
Separated	0.0%	0.5%
Widowed	0.0%	6.0%
Divorced	7.4%	9.6%

Education

Less than 9th grade 2.2%

Some HS, no diploma 1.1%

HS graduate 17.4%

Some college, no degree 22.5%

Associate's degree 5.8%

Bachelor's degree 29.2%

Graduate / professional 21.8%

Metric	%
HS diploma or higher	96.7%
Bachelor's or higher	51.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	41	2.5%
Kindergarten	0	0.0%
Elementary school	600	37.2%
High school	539	33.5%
College / grad school	431	26.8%

Employment

Industry of employment

Education & healthcare 22.8%

Finance & real estate 17.6%

Manufacturing 13.4%

Retail trade 8.7%

Construction 8.0%

Wholesale trade 7.0%

Professional & management 5.2%

Other services 5.0%

Arts, food & hospitality 4.7%

Transportation & utilities 3.0%

Public administration 2.6%

Agriculture & mining 1.0%

Information 0.8%

Occupation

Category	%
Management, business & arts	58.1%
Service	4.6%
Sales & office	25.7%
Natural resources & construction	7.6%
Production & transportation	4.0%

Employment type

Type	%
Private sector	81.9%
Government	8.7%
Self-employed	7.3%
Unpaid family workers	2.1%

Commute

Method	%
Drive alone	73.1%
Carpool	3.0%
Public transit	0.0%
Walk	0.6%
Work from home	22.1%
Other means	1.2%
Avg commute (minutes)	30.1

Poverty

All people 9.0%

Under 18 years 7.6%

18 and over 9.4%

Married-couple families 6.4%

Female-led households 10.1%

Income support

Source	% of households
Social Security	29.4%
Retirement income	27.4%
Supplemental Security	2.2%
Cash public assistance	0.6%
Food stamps / SNAP	3.8%

Health indicators

Condition	%
Obesity	29.5%
High blood pressure	28.2%
High cholesterol	34.4%
Diabetes	8.5%
Heart disease	5.4%
Stroke	2.3%
Asthma	10.7%
Arthritis	24.2%
Kidney disease	2.3%
Pulmonary disease	5.1%
Cancer	7.1%

Behavior / access	%
Smoking	13.3%
Binge drinking	17.3%
No physical activity	16.6%
Less than 7 hrs sleep	32.0%
Depression	21.5%
Fair or poor health	9.3%
Poor mental health	13.0%
Poor physical health	8.0%
No health insurance	6.0%
Visited doctor (checkup)	78.2%
Visited dentist	76.3%
Cholesterol screening	94.2%
Teeth loss	6.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	238	5.1%

Disability	%
Any disability	7.3%
Under 18	5.9%
18–64 years	5.2%
65 and over	18.0%

Health insurance coverage

Type	%
Private insurance	82.0%
Public insurance	24.4%
No insurance	2.0%
Uninsured under 19	4.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,826	95.0%
Spanish	170	2.9%
Other Indo-European	148	2.5%
Asian & Pacific Islander	22	0.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	5,775	94.1%
Born in same state	5,660	92.3%
Born in different state	3,970	64.7%
Foreign born	115	1.9%
Naturalized citizen	359	5.9%
Not a US citizen	244	68.0%

Ancestry

Ancestry	Count	%
Italian	1,200	19.6%
French	892	14.5%
German	476	7.8%

Ancestry	Count	%
Arab	287	4.7%
Norwegian	77	1.3%
Irish	28	0.5%

Technology access

Metric	% of households
Computer access	34.2%
Internet access	96.2%

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

Frequently asked questions about ZIP code 06447

What city is ZIP code 06447 in?

ZIP code 06447 is primarily assigned to Marlborough, Connecticut.

What county is ZIP code 06447 in?

ZIP code 06447 falls within Hartford County, Connecticut.

Is ZIP code 06447 mostly owner-occupied?

91% of occupied units in ZIP code 06447 are owner-occupied, well above the national average.

How educated is the population of ZIP code 06447?

51% 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 06447?

The median household income in ZIP code 06447 is $134,643, above the national median of ~$75,000.

What is the typical home value in ZIP code 06447?

The median home value in ZIP code 06447 is $366,700.

What timezone is ZIP code 06447 in?

ZIP code 06447 observes the EST timezone.