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 Moderate-density area
- $132,045
- Median income Above-median income area
- $499,400
- Median home value Above-median home value
- 58.4%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 06371 (Old Lyme, CT) rose +6.4% from 2023 to 2024. The all-transactions index moved from 209.8 in 2023 to 223.3 in 2024 (2000 = 100).
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 average Connecticut ZIP), while per-capita income is $85,733. Both reported hardship measures are comparatively low in absolute terms: poverty is 3.0% and unemployment is 2.8%. Housing is both higher-cost and owner-heavy: median home value is $499,400 (15% above the average Connecticut ZIP), while 89.1% of occupied homes are owner-occupied and median rent is $2,172.
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. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in New London County, so 06371 can be compared with both its immediate and county-level context.
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.
- Professional, scientific, and technical services
Professional, scientific, and technical services
46 establishments
- Construction
Construction
30 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
25 establishments
- Health care and social assistance
Health care and social assistance
24 establishments
- Retail trade
Retail trade
22 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, 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
Who lives in ZIP 06371?
52.0
Median Age
48.1%
Male
51.9%
Female
7.6%
Foreign-Born
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 ZIP avg
$85,733
Per Capita Income
3.0%
Poverty Rate
2.8%
Unemployment Rate
27.7 min
Mean Commute Time
How ZIP 06371 ranks among Connecticut ZIPs
Old Lyme, CT household income vs. every Connecticut ZIP code
Median household income among 270 reporting Connecticut ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$132,045 Top 23% higher than 77% of 270 Connecticut ZIPs
Each bar is a $20K-wide band; taller bars hold more Connecticut 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
5,567housing units
5,567
Total Housing Units
4,122
Occupied Units
1,445
Vacant Units
2.38
Avg Household Size
Occupancy Type
$499,400
Median Home Value
+15% vs state ZIP avg
$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.
- 06357
Niantic (06357)
12,552 residents
- 06475
Old Saybrook (06475)
10,242 residents
- 06371
Old Lyme (06371)
9,952 residents
- 06333
East Lyme (06333)
6,607 residents
- 06423
East Haddam (06423)
5,097 residents
- 06417 4,629
Deep River (06417)
4,629 residents
- 06420 4,182
Salem (06420)
4,182 residents
- 06426 3,245
Essex (06426)
3,245 residents
- 06442 2,745
Ivoryton (06442)
2,745 residents
What this shows Among its immediate neighbors, ZIP 06371 ranks #3 by population - useful context the national average alone can't give.
ZIP 06371 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 06376
South Lyme (06376)
$156,000 median income
- 06371
Old Lyme (06371)
$132,045 median income
- 06333
East Lyme (06333)
$129,083 median income
- 06420
Salem (06420)
$123,425 median income
- 06475
Old Saybrook (06475)
$114,333 median income
- 06409
Centerbrook (06409)
$107,909 median income
- 06423
East Haddam (06423)
$107,549 median income
- 06442
Ivoryton (06442)
$104,358 median income
- 06426
Essex (06426)
$103,705 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 06371, both outside CT so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (9,952 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in New London County
Related Areas
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.
Related
Take this with you
What to do with ZIP 06371's numbers, next.
- See how ZIP 06371 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Old Lyme, CT ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.