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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

Zip Code 21921, Elkton, MD

ZIP Code 21921 Details

Zip Code:21921
State:MD [Maryland]
Counties:CECIL, MD
Multi County:No
City Alias(es):Elkton
Area Code:443 / 410 / 667
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Eastern (GMT -05:00)
Observes Daylight Saving:Yes
Elevation:32 ft
State FIPS:24
County FIPS:015
Division:South Atlantic
Intro Date:<2004-10

ZIP Code 21921 2020 Census Demographics

Current Population:46,348
2020 Population:44,983
Households per ZIP Code:16,941
Average House Value:$243,500
Avg. Income Per Household:$76,214
Persons Per Household:2.61
White Population:34,175
Black Population:5,188
Hispanic Population:2,913
Asian Population:719
American Indian Population:110
Hawaiian Population:10
Other Population:1,155
Male Population:22,002
Female Population:22,981
Median Age:38.80 years
Male Median Age:37.20 years
Female Median Age:40.30 years

ZIP Code 21921 Other Demographics

# Residential Mailboxes:17,758
# Business Mailboxes:958
Total Delivery Receptacles:18,600
Number of Businesses:827
1st Quarter Payroll:$184,175,000
Annual Payroll:$806,169,000
# of Employees:13,578
Water Area:5.489 sq mi
Land Area:94.733 sq mi
118th Congressional District:01
118th Congressional Land Area:3977.06 sq mi
Single Family Delivery Units:10,484
Multi Family Delivery Units:274
# Residential Mailboxes:17,758
# Business Mailboxes:958
Total Delivery Receptacles:18,600

ZIP Code 21921 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 8,185 8,265 +80
Retired Workers: 5,455 5,575 +120
Disabled Workers: 1,350 1,325 -25
Widow(er)s and Parents: 500 495 -5
Spouses: 225 220 -5
Children: 655 650 -5
65+: 5,745 5,895 +150
Monthly Benefits - All: $11,619,000 $12,082,000 +$463,000
Monthly Benefits - Retired Workers: $8,511,000 $8,915,000 +$404,000
Monthly Benefits - Widow(ers): $707,000 $707,000 $0

ZIP Code 21921 Statistical Areas

CBSA: 37980
CBSA Name: Philadelphia-Camden-Wilmington, PA-NJ-DE-MD
CBSA Type: Metro
CBSA Division: 48864
CBSA Division Name: Wilmington, DE-MD-NJ
CBSA Population:0
CBSA Division Population:0
MSA: 6162
MSA Name: Philadelphia-Wilmington-Atlantic City, PA-NJ-DE-MD CMSA
PMSA: 9160
PMSA Name: Wilmington-Newark, DE-MD PMSA
City State Key:V23414
Preferred Last Line Key:V23414
21920: Previous ZIP Code
Next ZIP Code: 21922


  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],