PlainZIP

Salem, CT · standard

ZIP Code 06420

New London County, Connecticut - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

4,182
55/sq mi
$123,425
Median income
$405,800
Median home value
50.5%
Bachelor's or higher

The verdict

Salem pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 9%
household income, US ZIPs
Top 20%
home value, US ZIPs
55
people per sq mi
86%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06420 against every reporting US ZIP.

ZIP code 06420 covers 75.6 square miles in Salem, New London County, Connecticut (a standard USPS delivery area), with a modest 4,182 residents on file, a density of 55 people per square mile, in the New York time zone.

ZIP 06420 skews affluent, with a median household income of $123,425 (9% above the Connecticut average), while per-capita income is $61,743. 6.1% of residents live below the poverty line, and the unemployment rate reads 3.0%. On housing, the median home value is $405,800 (7% below the state average) with median rent at $1,440 per month, and 86.4% of occupied units are owner-occupied.

This is a highly-educated ZIP: 50.5% of adults hold a bachelor's degree or higher, the median age is 41.6, and the average commute is 32 minutes. Beyond these figures, 10 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing New London County, letting you compare 06420 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 06420

Top 5 sectors by establishment count in Salem, CT

Which industries have the most business establishments in ZIP 06420.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 06420, Salem, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

4,182

Population

75.6

Area (sq mi)

55

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 06420?

41.6

Median Age

53.3%

Male

46.7%

Female

6.0%

Foreign-Born

White 87.9%
African American 0.5%
Asian 1.5%
American Indian or Alaska Native 1.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.5%
Hispanic or Latino 6.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$123,425

Median Household Income

+9% vs state

$61,743

Per Capita Income

6.1%

Poverty Rate

3.0%

Unemployment Rate

31.6 min

Mean Commute Time

How ZIP 06420 ranks nationally

Salem, CT household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$123,425 Top 9% higher than 91% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 69.3%
Bachelor's Degree or Higher 50.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,811

Total Housing Units

1,811

Occupied Units

0

Vacant Units

2.41

Avg Household Size

Occupancy Type

Owner 86.4%
Renter 13.6%

$405,800

Median Home Value

-7% vs state

$1,440

Median Rent

1988

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+14.3%

YoY Change (2024)

228

HPI Index (2000 = 100)

+128%

Total Change Since 2000

Home values in ZIP 06420 have increased 14.3% over the past year (2024). Since 2000, this ZIP has seen +128% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.4% 144
2021 +16.8% 168
2022 +8.9% 183
2023 +9.1% 200
2024 +14.3% 228

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 73 business establishments in ZIP 06420, employing approximately 504 people with a combined annual payroll of $34,281,000.

73

Businesses

504

Employees

$34.3M

Annual Payroll

9

Industry Sectors

Industry Establishments % of Total
Retail trade 10 13.7%
Construction 9 12.3%
Professional, scientific, and technical services 9 12.3%
Accommodation and food services 8 11.0%
Health care and social assistance 7 9.6%
Other services (except public administration) 7 9.6%
Administrative and support and waste management and remediation services 4 5.5%
Wholesale trade 3 4.1%
Management of companies and enterprises 3 4.1%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 06420 vs 06370 →

ZIP 06420 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 06420 ranks #8 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 06420 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 06420 ranks #4 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
06370 Oakdale, CT 7,429 4.3 mi
06333 East Lyme, CT 6,607 7.0 mi
06423 East Haddam, CT 5,097 6.4 mi
06334 Bozrah, CT 2,592 6.3 mi
06353 Montville, CT 162 6.8 mi
06415 Colchester, CT 16,857 6.5 mi
06336 Gilman, CT 84 7.5 mi
06382 Uncasville, CT 11,947 7.9 mi
06249 Lebanon, CT 7,308 10.2 mi
06371 Old Lyme, CT 9,952 8.9 mi

More ZIP Codes in New London County

06360 standard
Norwich, CT
Pop: 37,541
06340 standard
Groton, CT
Pop: 31,242
06320 standard
New London, CT
Pop: 27,617
06415 standard
Colchester, CT
Pop: 16,857
06351 standard
Jewett City, CT
Pop: 16,301
06385 standard
Waterford, CT
Pop: 15,893

Related Areas

New London County Salem, CT Connecticut

Frequently Asked Questions

What county is ZIP code 06420 in? ▼
ZIP code 06420 (Salem) is located in New London County, Connecticut. New London County contains multiple ZIP codes, see the full list at /counties/new-london-ct.
What is the population of ZIP code 06420? ▼
ZIP code 06420 in Salem, CT has a population of 4,182 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06420? ▼
The median household income in ZIP 06420 is $123,425, which is 62% above the national average of $76,288.
What is the average home value in ZIP 06420? ▼
The median home value in ZIP 06420 is $405,800, which is 46% above the national average of $278,155.
What is the demographic makeup of ZIP 06420? ▼
The largest racial group in ZIP 06420 is White at 87.9%. Hispanic or Latino residents make up 6.3% of the population.
How many businesses are in ZIP code 06420? ▼
ZIP code 06420 has 73 business establishments employing approximately 504 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06420? ▼
The top industries by establishment count in ZIP 06420 are: Retail trade (10), Construction (9), Professional, scientific, and technical services (9). There are 9 industry sectors represented in total.
How have home values changed in ZIP code 06420? ▼
According to the FHFA House Price Index, home values in ZIP 06420 increased by 14.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 128%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 06420? ▼
In ZIP code 06420, 69.3% of residents aged 25+ have a high school diploma or higher, and 50.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 06420? ▼
The mean commute time for workers in ZIP code 06420 is 31.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 06420? ▼
In ZIP code 06420, approximately 86.4% of occupied housing units are owner-occupied and 13.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06420? ▼
The poverty rate in ZIP code 06420 is 6.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.