Old Lyme, CT 06371 ZIP Code Profile

Related Place Profiles:
North Lyme, CT | Old Lyme, CT

Camera Icon Photos of the local Old Lyme, CT area

ZIP Code 06371: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Old Lyme, CT 06371

Acceptable Alternative
Lyme, CT 06371

Not Acceptable, USPS
North Lyme, CT 06371

  • ZIP Code Type: STANDARD
  • County: New London County
  • Centroid: Latitude 41.329, Longitude -72.309
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 364
  • PO Box Addresses: 453
  • Residential Addresses: 4,581
    • Multi-Family Addresses: 0
    • Single Family Addresses: 4,581

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


06371 ZIP Code Map

Search the map for:

Old Lyme, CT 06371 Data & Demographics (As of July 1, 2017)


Total Population 10,033
Daytime Population: Workers 3,478
Daytime Population: Residents 4,753
Total Daytime Population (TDP) 8,231
Ratio TDP/Total Population1 0.82
Population in Households 10,013
Population in Familes 8,277
Population in Group Qrtrs 20
Population Density2 180
Diversity Index3 15


Median Household Income $92,633
Average Household Income $127,623
Per Capita Income $53,478


Total Housing Units 6,308 (100%)
Owner Occupied HU 3,490 (55.3%)
Renter Occupied HU 710 (11.3%)
Vacant Housing Units 2,108 (33.4%)
Median Home Value $438,559
Average Home Value $526,762


Total Households 4,200
Average Household Size 2.38
Family Households 2,886
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.03% 0.14%
Households -0.02% 0.1%
Families -0.11% 0.03%
Median Household Income   2.0%
Per Capita Income   2.26%

Old Lyme, CT 06371 - Peer Comparisons by Rank and Percentile

The table below compares 06371 to the other 275 ZIP Codes in Connecticut by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 128 54th
Population Density # 226 18th
Diversity Index # 234 15th
Median Household Income # 84 70th
Per Capita Income # 44 84th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

Connecticut Research Tools

Connecticut Census Data Comparison Tool

Compare Connecticut Census Data
Highest or Lowest: