06420 ZIP Code — Salem, CT

New London County, Connecticut

ZIP code 06420 is located in Salem, Connecticut, within New London County. It covers approximately 29.55 square miles and serves a population of 4,307 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 860/959.

About ZIP code 06420

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $356,700. Owner-occupancy is high at 88%, well above the national average.

The gap between median ($114,855) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% 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. An above-average commute of 36 minutes suggests many residents work outside the immediate area.

Educational attainment is high — 54% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 06420 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

4,307

population

29.55

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

06420 ZIP code map

Cities in ZIP code 06420

Below are the cities the US Postal Service accepts for ZIP code 06420. Using any city not on this list may result in mail delivery delays.

City	Status
Salem	Acceptable
Salem	Preferred

Nearby ZIP codes

06370 Oakdale (4.3 mi) 06415 Colchester (5.7 mi) 06423 East Haddam (6.4 mi) 06334 Bozrah (6.4 mi) 06353 Montville (7 mi) 06336 Gilman (7.4 mi) 06382 Uncasville (7.4 mi) 06333 East Lyme (7.7 mi) 06469 Moodus (9.1 mi) 06375 Quaker Hill (9.3 mi) 06371 Old Lyme (9.5 mi) 06249 Lebanon (9.8 mi)

Demographics updated 05/2026

Population
Total population	4,307
Population density	146 / sq mi
State FIPS	09
County FIPS	011

Geography
Land area	29.55 sq mi
Water area	0.84 sq mi
Latitude	41.4858
Longitude	-72.2698
Timezone	Eastern (ET)
Area code	860/959

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.1%	32.0%	32.0%
$50k – $100k	27.6%	30.8%	27.7%
$100k – $200k	45.4%	28.0%	27.1%
Over $200k	12.8%	9.2%	13.2%

Demographics & statistics

4,307

Population

146

People per sq mi

39.6

Median age

$114,855

Median household income

$55,268

Per capita income

$356,700

Median home value

$1,303

Median monthly rent

87.9%

Home ownership

4.6%

Poverty rate

3.1%

Unemployment

1,563

Housing units

54.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

226

5–9

217

125

10–14

120

149

15–19

144

101

20–24

243

25–34

234

321

35–44

309

300

45–54

288

128

55–59

122

153

60–64

147

271

65–74

261

100

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,051	24.4%
18 and over	3,256	75.6%
65 and over	752	17.5%
Median age	39.6 years

Race & ethnicity

White 84%

Hispanic or Latino 6.8%

Other race 3.9%

Two or more races 3.5%

Asian 0.8%

Black or African American 0.6%

American Indian / Alaska Native 0.5%

Group	Count	%
White	3,881	84%
Hispanic or Latino	315	6.8%
Other race	182	3.9%
Two or more races	160	3.5%
Asian	35	0.8%
Black or African American	26	0.6%
American Indian / Alaska Native	23	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	14.1%	32.0%	32.0%
$50k – $100k	27.6%	30.8%	27.7%
$100k – $200k	45.4%	28.0%	27.1%
Over $200k	12.8%	9.2%	13.2%

$10k–$15k 1.9%

$15k–$25k 0.7%

$25k–$35k 6.7%

$35k–$50k 7.6%

$50k–$75k 6.0%

$75k–$100k 14.2%

$100k–$150k 28.3%

$150k–$200k 14.5%

$200k+ 20.0%

Range	% of households
$10k–$15k	1.9%
$15k–$25k	0.7%
$25k–$35k	6.7%
$35k–$50k	7.6%
$50k–$75k	6.0%
$75k–$100k	14.2%
$100k–$150k	28.3%
$150k–$200k	14.5%
$200k+	20.0%
Median income	$114,855

Housing

Home values

Under $50k 3.0%

$50k–$100k 3.3%

$150k–$200k 3.2%

$200k–$300k 23.2%

$300k–$500k 53.3%

$500k–$1M 13.9%

Housing overview

Metric	Value
Median home value	$356,700
Median rent / month	$1,303
Owner occupied	87.9%
Renter occupied	12.1%
Vacant	6.3%
Single-family detached	87.9%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.8
Avg household size (owned)	2.70

Year built

Era	%
2020 or later	0.0%
2010–2019	7.9%
2000–2009	12.4%
1990–1999	22.6%
1980–1989	21.6%
1970–1979	13.6%
1960–1969	3.1%
1950–1959	8.9%
1940–1949	2.5%
1939 or earlier	7.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	8.0%
2 bedrooms	10.4%
3 bedrooms	52.7%
4 bedrooms	25.2%
5+ bedrooms	3.6%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	15.3%
2 vehicles	49.9%
3 or more	34.8%

Heating fuel

Fuel type	%
Utility gas	0.8%
Electricity	11.5%
Propane / LP gas	11.9%
Fuel oil	68.4%
Wood	3.0%
Solar	1.5%
No fuel used	0.4%

Households & families

Household type	Count	%
Married-couple family	1,132	68.6%
Cohabiting couple	147	8.9%
Male householder, no spouse	186	11.3%
Female householder, no spouse	186	11.3%
Households with children under 18	543	32.9%
Households with seniors (65+)	544	32.9%
Average household size	2.59

Marital status

Status	Male	Female
Never married	22.8%	24.9%
Married	67.0%	62.4%
Separated	0.0%	0.3%
Widowed	0.3%	4.7%
Divorced	9.9%	7.7%

Education

Less than 9th grade 0.6%

Some HS, no diploma 0.9%

HS graduate 19.0%

Some college, no degree 13.1%

Associate's degree 12.1%

Bachelor's degree 37.1%

Graduate / professional 17.2%

Metric	%
HS diploma or higher	98.5%
Bachelor's or higher	54.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	32	2.6%
Kindergarten	43	3.5%
Elementary school	595	48.9%
High school	267	21.9%
College / grad school	280	23.0%

Employment

Industry of employment

Education & healthcare 21.5%

Manufacturing 14.5%

Arts, food & hospitality 12.1%

Professional & management 8.3%

Other services 7.4%

Construction 7.0%

Retail trade 6.9%

Finance & real estate 6.4%

Transportation & utilities 5.6%

Public administration 3.7%

Wholesale trade 3.1%

Information 2.0%

Agriculture & mining 1.5%

Occupation

Category	%
Management, business & arts	53.5%
Service	13.2%
Sales & office	15.0%
Natural resources & construction	7.6%
Production & transportation	10.8%

Employment type

Type	%
Private sector	74.7%
Government	16.4%
Self-employed	8.4%
Unpaid family workers	0.5%

Commute

Method	%
Drive alone	75.9%
Carpool	4.2%
Public transit	1.0%
Walk	0.0%
Work from home	18.5%
Other means	0.4%
Avg commute (minutes)	35.6

Poverty

All people 4.6%

Under 18 years 6.5%

18 and over 4.0%

Married-couple families 0.0%

Female-led households 19.6%

Income support

Source	% of households
Social Security	32.4%
Retirement income	22.5%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	2.7%

Health indicators

Condition	%
Obesity	28.4%
High blood pressure	26.9%
High cholesterol	30.6%
Diabetes	6.6%
Heart disease	4.6%
Stroke	1.9%
Asthma	9.9%
Arthritis	20.6%
Kidney disease	2.0%
Pulmonary disease	4.6%
Cancer	6.4%

Behavior / access	%
Smoking	13.2%
Binge drinking	18.4%
No physical activity	13.4%
Less than 7 hrs sleep	32.1%
Depression	20.7%
Fair or poor health	7.6%
Poor mental health	12.6%
Poor physical health	6.9%
No health insurance	6.3%
Visited doctor (checkup)	76.3%
Visited dentist	79.1%
Cholesterol screening	93.3%
Teeth loss	6.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	263	8.4%

Disability	%
Any disability	7.1%
Under 18	2.4%
18–64 years	1.6%
65 and over	30.9%

Health insurance coverage

Type	%
Private insurance	82.3%
Public insurance	28.0%
No insurance	2.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,176	97.0%
Spanish	35	0.8%
Other Indo-European	23	0.6%
Asian & Pacific Islander	0	0.0%
Other languages	12	0.3%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,115	95.5%
Born in same state	4,013	93.2%
Born in different state	2,288	53.1%
Foreign born	102	2.4%
Naturalized citizen	192	4.5%
Not a US citizen	116	60.4%

Ancestry

Ancestry	Count	%
Italian	796	18.5%
French	658	15.3%
Arab	250	5.8%
German	154	3.6%
English	28	0.7%

Ancestry	Count	%
Polish	28	0.7%
Irish	27	0.6%
Norwegian	25	0.6%
Dutch	10	0.2%

Technology access

Metric	% of households
Computer access	38.3%
Internet access	97.9%

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

Frequently asked questions about ZIP code 06420

What city is ZIP code 06420 in?

ZIP code 06420 is primarily assigned to Salem, Connecticut.

What county is ZIP code 06420 in?

ZIP code 06420 falls within New London County, Connecticut.

Is ZIP code 06420 mostly owner-occupied?

88% of occupied units in ZIP code 06420 are owner-occupied, well above the national average.

How educated is the population of ZIP code 06420?

54% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the typical home value in ZIP code 06420?

The median home value in ZIP code 06420 is $356,700.

What is the median household income in ZIP code 06420?

The median household income in ZIP code 06420 is $114,855, above the national median of ~$75,000.

What timezone is ZIP code 06420 in?

ZIP code 06420 observes the EST timezone.