Middlefield ZIP Code List — Middlesex County, CT

There is one unique ZIP code in Middlefield, Connecticut and it is 06455. Area code: 860.

ZIP codes

10.74

sq mi land

0.59

sq mi water

860

area code

Middlefield, CT ZIP code map

About Middlefield, CT

Middlefield, Connecticut, is a charming small town located in the heart of Middlesex County. Known for its picturesque landscapes and tight-knit community, it offers a peaceful retreat from the hustle and bustle of nearby urban areas. Its rich history and vibrant local culture make it an appealing destination for visitors and a welcoming home for residents.

Location & geography

Middlefield is situated centrally in Connecticut, making it easily accessible from various parts of the state. The town is bordered by several nearby cities including Meriden, which is approximately 7 miles to the northwest, and Wallingford, about 9 miles to the west. The total land area of Middlefield covers 10.74 square miles, with an additional 0.59 square miles of water, featuring a mix of scenic rural terrain and small bodies of water.

Community & economy

The character of Middlefield is defined by its rural charm and community-oriented atmosphere, where neighbors often know one another and local events are well attended. The economy is supported by small businesses and industries that cater to local needs, with a focus on agriculture, retail, and services. Daily life in Middlefield is leisurely, with residents enjoying outdoor activities and local parks, as well as community gatherings that foster connection.

Transportation

Major transportation routes include Route 66, which runs through the town, providing convenient access to neighboring areas. The nearest airport is Bradley International Airport, located about 30 miles to the north, offering regional and national flights. Public transportation options are limited, with the town primarily relying on personal vehicles for commuting and travel.

History

Middlefield was initially settled in the 17th century and officially incorporated in 1866. It has historically been known for its agricultural roots, with key industries including farming and later, manufacturing. Notable events in its history include the establishment of local farms and the development of the town’s infrastructure that helped shape the community as it is known today.

Did you know?

One surprising fact about Middlefield is that it is home to the famous Lyman Orchards, which offers apple picking and seasonal events, making it a popular attraction for families. Additionally, the town has over 1,000 acres of protected open space, highlighting its commitment to conservation and outdoor recreational activities.

ZIP codes for Middlefield, CT (1)

ZIP code	City	County	Map
06455	Middlefield	Middlesex	View map

Demographics & statistics

2,834

Population

51.7

Median age

$102,292

Median household income

$61,100

Per capita income

$364,700

Median home value

$1,208

Median monthly rent

92.2%

Home ownership

3.6%

Poverty rate

2.7%

Unemployment

1,268

Housing units

41.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

108

10–14

15–19

20–24

165

25–34

139

132

35–44

111

300

45–54

251

154

55–59

130

171

60–64

143

205

65–74

171

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	435	15.3%
18 and over	2,399	84.7%
65 and over	577	20.4%
Median age	51.7 years

Race & ethnicity

White 87.8%

Asian 4.9%

Two or more races 3.1%

Hispanic or Latino 3%

Other race 0.9%

Black or African American 0.4%

Group	Count	%
White	2,564	87.8%
Asian	143	4.9%
Two or more races	90	3.1%
Hispanic or Latino	87	3%
Other race	25	0.9%
Black or African American	12	0.4%

Household income

Under $10k 2.0%

$10k–$15k 2.9%

$15k–$25k 3.0%

$25k–$35k 5.7%

$35k–$50k 1.3%

$50k–$75k 16.4%

$75k–$100k 16.9%

$100k–$150k 18.3%

$150k–$200k 16.7%

$200k+ 16.8%

Range	% of households
Under $10k	2.0%
$10k–$15k	2.9%
$15k–$25k	3.0%
$25k–$35k	5.7%
$35k–$50k	1.3%
$50k–$75k	16.4%
$75k–$100k	16.9%
$100k–$150k	18.3%
$150k–$200k	16.7%
$200k+	16.8%
Median income	$102,292

Housing

Home values

Under $50k 0.7%

$50k–$100k 0.8%

$100k–$150k 0.6%

$150k–$200k 6.8%

$200k–$300k 24.4%

$300k–$500k 51.4%

$500k–$1M 15.3%

Housing overview

Metric	Value
Median home value	$364,700
Median rent / month	$1,208
Owner occupied	92.2%
Renter occupied	7.8%
Vacant	9.0%
Single-family detached	89.9%
Large apartment buildings	0.0%
Mobile homes	0.7%
Median rooms	6.1
Avg household size (owned)	2.23

Year built

Era	%
2020 or later	0.0%
2010–2019	4.5%
2000–2009	4.5%
1990–1999	15.2%
1980–1989	13.4%
1970–1979	9.9%
1960–1969	10.6%
1950–1959	15.0%
1940–1949	6.6%
1939 or earlier	20.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.7%
2 bedrooms	20.7%
3 bedrooms	59.8%
4 bedrooms	13.8%
5+ bedrooms	1.9%

Vehicles per household

Vehicles	% of households
No vehicle	2.5%
1 vehicle	18.7%
2 vehicles	40.3%
3 or more	38.6%

Heating fuel

Fuel type	%
Utility gas	2.1%
Electricity	8.6%
Propane / LP gas	14.6%
Fuel oil	65.5%
Wood	6.8%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	637	51.3%
Cohabiting couple	46	3.7%
Male householder, no spouse	256	20.6%
Female householder, no spouse	303	24.4%
Households with children under 18	265	21.3%
Households with seniors (65+)	411	33.1%
Average household size	2.27

Marital status

Status	Male	Female
Never married	22.1%	18.6%
Married	58.0%	58.1%
Separated	2.3%	0.0%
Widowed	8.6%	8.3%
Divorced	9.0%	15.0%

Education

Less than 9th grade 1.6%

Some HS, no diploma 3.0%

HS graduate 29.7%

Some college, no degree 14.3%

Associate's degree 10.0%

Bachelor's degree 20.4%

Graduate / professional 21.0%

Metric	%
HS diploma or higher	95.4%
Bachelor's or higher	41.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	29	6.5%
Kindergarten	0	0.0%
Elementary school	218	49.1%
High school	112	25.2%
College / grad school	85	19.1%

Employment

Industry of employment

Education & healthcare 34.1%

Construction 12.2%

Professional & management 10.9%

Manufacturing 8.8%

Retail trade 7.4%

Finance & real estate 6.8%

Transportation & utilities 6.1%

Wholesale trade 4.3%

Arts, food & hospitality 3.6%

Other services 3.5%

Public administration 1.5%

Information 0.6%

Occupation

Category	%
Management, business & arts	45.2%
Service	6.6%
Sales & office	22.4%
Natural resources & construction	13.7%
Production & transportation	12.1%

Employment type

Type	%
Private sector	76.3%
Government	15.3%
Self-employed	8.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.2%
Carpool	4.4%
Public transit	2.2%
Walk	0.6%
Other means	0.8%
Avg commute (minutes)	24.8

Poverty

All people 3.6%

Under 18 years 4.1%

18 and over 3.5%

Married-couple families 0.0%

Female-led households 5.3%

Income support

Source	% of households
Social Security	29.9%
Retirement income	27.9%
Supplemental Security	3.0%
Cash public assistance	2.7%
Food stamps / SNAP	1.4%

Health indicators

Condition	%
High blood pressure	31.7%
High cholesterol	33.6%
Heart disease	6.1%
Stroke	2.6%
Asthma	10.0%
Arthritis	25.9%
Kidney disease	2.6%
Pulmonary disease	6.2%
Cancer	7.6%

Behavior / access	%
Binge drinking	17.6%
No physical activity	16.9%
Less than 7 hrs sleep	30.4%
Fair or poor health	10.0%
Poor mental health	13.3%
Poor physical health	8.6%
No health insurance	7.3%
Visited doctor (checkup)	77.8%
Visited dentist	74.2%
Cholesterol screening	93.2%
Teeth loss	9.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	241	10.1%

Disability	%
Any disability	10.0%
Under 18	2.1%
18–64 years	9.1%
65 and over	18.7%

Health insurance coverage

Type	%
Private insurance	77.5%
Public insurance	34.7%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,729	96.3%
Spanish	51	1.9%
Other Indo-European	35	1.3%
Asian & Pacific Islander	16	0.6%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,671	94.2%
Born in same state	2,671	94.2%
Born in different state	1,988	70.1%
Foreign born	0	0.0%
Naturalized citizen	163	5.8%
Not a US citizen	101	62.0%

Ancestry

Ancestry	Count	%
Italian	538	19%
French	429	15.1%
Arab	152	5.4%
German	59	2.1%

Ancestry	Count	%
Polish	33	1.2%
English	26	0.9%
Norwegian	25	0.9%
Dutch	6	0.2%

Technology access

Metric	% of households
Computer access	43.8%
Internet access	96.1%

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

Frequently asked questions

What is the ZIP code for Middlefield, CT?

Middlefield, CT has one ZIP code: 06455.

What is the main ZIP code for Middlefield, CT?

The primary ZIP code for Middlefield, CT is 06455. The city uses area code 860 for phone service.

What county is Middlefield, CT in?

Middlefield is located in Middlesex County, Connecticut.

How many ZIP codes are in Middlefield, CT?

Middlefield, CT has 1 ZIP code.