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ZIP Code Database - Facts & Stats

Zip Code 21778, Rocky Ridge, MD

ZIP Code 21778 Data

Zip Code:21778
City:Rocky Ridge
State:MD [Maryland]
Multi County:No
City Alias(es):Rocky Ridge
Area Code:240 / 301
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Eastern (GMT -05:00)
Observes Daylight Saving:Yes
Elevation:405 ft
State FIPS:24
County FIPS:021
Division:South Atlantic
Intro Date:<2004-10

ZIP Code 21778 2010 Census Demographics

Current Population:1,140
2010 Population:1,094
Households per ZIP Code:409
Average House Value:$263,500
Avg. Income Per Household:$69,722
Persons Per Household:2.67
White Population:1,077
Black Population:2
Hispanic Population:24
Asian Population:13
American Indian Population:5
Hawaiian Population:3
Other Population:10
Male Population:544
Female Population:550
Median Age:45.10 years
Male Median Age:43.80 years
Female Median Age:46.50 years

More Census 2010 Data for ZIP Code 21778

ZIP Code 21778 Other Demographics

# Residential Mailboxes:427
# Business Mailboxes:4
Total Delivery Receptacles:475
Number of Businesses:17
1st Quarter Payroll:$1,001,000
Annual Payroll:$5,104,000
# of Employees:104
Water Area:0.371 sq mi
Land Area:17.531 sq mi
113th Congressional District:08
113th Congressional Land Area:859.85 sq mi
Single Family Delivery Units:427
Multi Family Delivery Units:0
# Residential Mailboxes:427
# Business Mailboxes:4
Total Delivery Receptacles:475

ZIP Code 21778 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 275 270 -5
Retired Workers: 200 205 +5
Disabled Workers: 35 35 0
Widow(er)s and Parents: 20 20 0
Spouses: 15 10 -5
Children: 5 0 -5
65+: 210 210 0
Monthly Benefits - All: $389,000 $400,000 +$11,000
Monthly Benefits - Retired Workers: $291,000 $305,000 +$14,000
Monthly Benefits - Widow(ers): $36,000 $35,000 ($1,000)

ZIP Code 21778 Statistical Areas

CBSA: 47900
CBSA Name: Washington-Arlington-Alexandria, DC-VA-MD-WV
CBSA Type: Metro
CBSA Division: 23224
CBSA Division Name: Frederick-Gaithersburg-Rockville, MD
CBSA Population:5,582,170
CBSA Division Population:1,205,162
MSA: 8872
MSA Name: Washington-Baltimore, DC-MD-VA-WV CMSA
PMSA: 8840
PMSA Name: Washington, DC-MD-VA-WV PMSA
City State Key:V24294
Preferred Last Line Key:V24294
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