PlainZIP

Old Lyme, CT · standard

ZIP Code 06371

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

9,952
70/sq mi
$132,045
Median income
$499,400
Median home value
58.4%
Bachelor's or higher

The verdict

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

Top 7%
household income, US ZIPs
Top 13%
home value, US ZIPs
70
people per sq mi
89%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 06371 against every reporting US ZIP.

ZIP code 06371 is a mid-sized community (a standard USPS delivery area) in Old Lyme, New London County, Connecticut, home to 9,952 residents across 141.8 square miles, a density of 70 people per square mile, in the New York time zone.

ZIP 06371 skews affluent, with a median household income of $132,045 (17% above the Connecticut average), while per-capita income is $85,733. The poverty rate stands at 3.0% and the unemployment rate at 2.8%. Median home value sits at $499,400 (15% above the state average), median rent at $2,172 a month, and owner-occupancy at 89.1%.

This is a highly-educated ZIP: 58.4% of adults hold a bachelor's degree or higher, the median age is 52, and the average commute is 28 minutes. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 06371, plus 6 more within New London County, give a clearer read than the national average 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 06371

Top 5 sectors by establishment count in Old Lyme, CT

Which industries have the most business establishments in ZIP 06371.

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 06371, Old Lyme, 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

9,952

Population

141.8

Area (sq mi)

70

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 06371?

52.0

Median Age

48.1%

Male

51.9%

Female

7.6%

Foreign-Born

White 88.7%
African American 0.3%
Asian 2.2%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 7.2%
Hispanic or Latino 4.6%

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?

$132,045

Median Household Income

+17% vs state

$85,733

Per Capita Income

3.0%

Poverty Rate

2.8%

Unemployment Rate

27.7 min

Mean Commute Time

How ZIP 06371 ranks nationally

Old Lyme, CT household income vs. every US ZIP code

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

$132,045 Top 7% higher than 93% 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 73.9%
Bachelor's Degree or Higher 58.4%

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

What does housing look like?

5,567

Total Housing Units

4,122

Occupied Units

1,445

Vacant Units

2.38

Avg Household Size

Occupancy Type

Owner 89.1%
Renter 10.9%

$499,400

Median Home Value

+15% vs state

$2,172

Median Rent

1966

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

+6.4%

YoY Change (2024)

223

HPI Index (2000 = 100)

+123%

Total Change Since 2000

Home values in ZIP 06371 have increased 6.4% over the past year (2024). Since 2000, this ZIP has seen +123% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.7% 146
2021 +13.8% 167
2022 +9.7% 183
2023 +14.8% 210
2024 +6.4% 223

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 255 business establishments in ZIP 06371, employing approximately 1,809 people with a combined annual payroll of $114,105,000.

255

Businesses

1,809

Employees

$114.1M

Annual Payroll

15

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 46 18.0%
Construction 30 11.8%
Administrative and support and waste management and remediation services 25 9.8%
Health care and social assistance 24 9.4%
Retail trade 22 8.6%
Other services (except public administration) 21 8.2%
Accommodation and food services 18 7.1%
Arts, entertainment, and recreation 14 5.5%
Finance and insurance 13 5.1%
Wholesale trade 12 4.7%
Real estate and rental and leasing 10 3.9%
Manufacturing 5 2.0%
Information 5 2.0%
Educational services 4 1.6%
Transportation and warehousing 3 1.2%

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 06371 vs 06426 →

ZIP 06371 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 06371 ranks #3 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 06371 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 06371 ranks #2 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
06426 Essex, CT 3,245 3.8 mi
06333 East Lyme, CT 6,607 4.5 mi
06409 Centerbrook, CT 693 4.9 mi
06475 Old Saybrook, CT 10,242 5.3 mi
06442 Ivoryton, CT 2,745 6.3 mi
06417 Deep River, CT 4,629 7.0 mi
06376 South Lyme, CT 57 6.2 mi
06357 Niantic, CT 12,552 6.4 mi
06423 East Haddam, CT 5,097 7.8 mi
06420 Salem, CT 4,182 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 Old Lyme, CT Connecticut

Frequently Asked Questions

What county is ZIP code 06371 in? ▼
ZIP code 06371 (Old Lyme) 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 06371? ▼
ZIP code 06371 in Old Lyme, CT has a population of 9,952 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 06371? ▼
The median household income in ZIP 06371 is $132,045, which is 73% above the national average of $76,288.
What is the average home value in ZIP 06371? ▼
The median home value in ZIP 06371 is $499,400, which is 80% above the national average of $278,155.
What is the demographic makeup of ZIP 06371? ▼
The largest racial group in ZIP 06371 is White at 88.7%. Hispanic or Latino residents make up 4.6% of the population.
How many businesses are in ZIP code 06371? ▼
ZIP code 06371 has 255 business establishments employing approximately 1,809 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 06371? ▼
The top industries by establishment count in ZIP 06371 are: Professional, scientific, and technical services (46), Construction (30), Administrative and support and waste management and remediation services (25). There are 15 industry sectors represented in total.
How have home values changed in ZIP code 06371? ▼
According to the FHFA House Price Index, home values in ZIP 06371 increased by 6.4% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 123%. 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 06371? ▼
In ZIP code 06371, 73.9% of residents aged 25+ have a high school diploma or higher, and 58.4% 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 06371? ▼
The mean commute time for workers in ZIP code 06371 is 27.7 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 06371? ▼
In ZIP code 06371, approximately 89.1% of occupied housing units are owner-occupied and 10.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 06371? ▼
The poverty rate in ZIP code 06371 is 3.0% 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.