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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

Zip Code 06820, Darien, CT

ZIP Code 06820 Details

Zip Code:06820
State:CT [Connecticut]
Multi County:No
City Alias(es):Darien
City Alias(es) To Avoid Using:Noroton
Noroton Heights
Area Code:203 / 475
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Eastern (GMT -05:00)
Observes Daylight Saving:Yes
Elevation:86 ft
State FIPS:09
County FIPS:001
Division:New England
Intro Date:<2004-10

ZIP Code 06820 2020 Census Demographics

Current Population:22,761
2020 Population:21,499
Households per ZIP Code:6,814
Average House Value:$1,475,400
Avg. Income Per Household:$250,000
Persons Per Household:3.15
White Population:18,316
Black Population:163
Hispanic Population:1,234
Asian Population:1,205
American Indian Population:23
Hawaiian Population:4
Other Population:282
Male Population:10,529
Female Population:10,970
Median Age:39.40 years
Male Median Age:38.30 years
Female Median Age:40.20 years

ZIP Code 06820 Other Demographics

# Residential Mailboxes:7,226
# Business Mailboxes:634
Total Delivery Receptacles:8,247
Number of Businesses:696
1st Quarter Payroll:$107,803,000
Annual Payroll:$467,597,000
# of Employees:6,248
Water Area:2.181 sq mi
Land Area:12.654 sq mi
118th Congressional District:04
118th Congressional Land Area:460.73 sq mi
Single Family Delivery Units:6,393
Multi Family Delivery Units:635
# Residential Mailboxes:7,226
# Business Mailboxes:634
Total Delivery Receptacles:8,247

ZIP Code 06820 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 2,525 2,525 0
Retired Workers: 1,945 1,945 0
Disabled Workers: 75 75 0
Widow(er)s and Parents: 175 175 0
Spouses: 230 230 0
Children: 100 100 0
65+: 2,300 2,300 0
Monthly Benefits - All: $4,837,000 $4,837,000 $0
Monthly Benefits - Retired Workers: $3,993,000 $3,993,000 $0
Monthly Benefits - Widow(ers): $334,000 $334,000 $0

ZIP Code 06820 Statistical Areas

CBSA: 14860
CBSA Name: Bridgeport-Stamford-Norwalk, CT
CBSA Type: Metro
CBSA Division: 
CBSA Division Name: 
CBSA Population:916,829
CBSA Division Population:0
MSA: 5602
MSA Name: New York-Northern New Jersey-Long Island, NY-NJ-CT-PA
PMSA: 8040
PMSA Name: Stamford-Norwalk, CT PMSA
City State Key:V20153
Preferred Last Line Key:V20153
06813: Previous ZIP Code
Next ZIP Code: 06824


  1. U.S. Postal Service [Last Updated: 6/1/2023],
  2. Internal Data Creation [Last Updated: 6/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 6/1/2023],
  6. U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],