U.S. ZIP Code tools
21778 · Population & demographics · Rocky Ridge MD
ZIP Code
21778
Rocky Ridge, MD
- City / locality
- Rocky Ridge
- State
- Maryland
- ZIP Code type
- Type not provided
- Latitude
- 39.6057
- Longitude
- -77.3296
- Coordinate source
- GeoNames Postal
- Source
- GeoNames Postal
- Source year
- Inherited source snapshot
Some U.S. place names and coordinates come from GeoNames as geographic references. They are not confirmation of the USPS preferred mailing city.
ZCTAs are Census statistical areas. Their boundaries do not represent every USPS ZIP Code or an exact postal delivery boundary.
Population & demographics
acs/acs5 · 2024
ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.
Estimated population
745People · Margin of error ±238Median age
58.4Years · Margin of error ±11.4Median household income
76,458USD · Margin of error ±54,983Median home value
382,100USD · Margin of error ±185,215Total households
332Households · Margin of error ±113Housing units
332Count · Margin of error ±113Owner-occupied housing units
270Count · Margin of error ±105Renter-occupied housing units
62Count · Margin of error ±76Median monthly gross rent
—USDHousehold income distribution
USD · Households
$0–$9,9990±14
$10,000–$14,9990±14
$15,000–$19,99985±96
$20,000–$24,9990±14
$25,000–$29,9990±14
$30,000–$34,9995±9
$35,000–$39,9990±14
$40,000–$44,9990±14
$45,000–$49,99915±24
$50,000–$59,9990±14
$60,000–$74,99954±62
$75,000–$99,99932±30
$100,000–$124,99911±18
$125,000–$149,99948±35
$150,000–$199,99915±28
≥ $200,00067±42
ACS figures are five-year statistical estimates for a ZCTA. They do not describe individual addresses; consider the margin of error when comparing values.
Source
U.S. Census Bureau ZCTA cartographic boundaries
Source year: 2020 Census ZCTA cartographic
U.S. Census Bureau ZCTA cartographic boundaries