Rocky Ridge, MD demographics:
population, income, and more

Total population
745
-11.3% year-over-year change
Median household income
$76,458/yr
-30.8% year-over-year change
Housing units
332
-8.5% year-over-year change

Rocky Ridge population

How many people live in Rocky Ridge

Rocky Ridge is home to 745 residents, according to the most recent Census data. Gender-wise, 38.8% of Rocky Ridge locals are male, and 61.2% are female.

Total population
745
-11.3% year-over-year change
Gender ratio
Male
38.8%
289
Female
61.2%
456
Value Percent YoY change
Male 289 38.8% -29.9%
Female 456 61.2% 6.5%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Rocky Ridge is 58, with the population distributed as follows: about 7.6% are children under 15, then 21.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 4.2% of the population, while another 33.3% fall into the 45 to 64 bracket. Finally, around 33.7% are 65 or older.

Median age
58.4
Age breakdown
Under 15
7.6%
15 to 24
21.2%
25 to 44
4.2%
45 to 64
33.3%
Over 65
33.7%
Value Percent YoY change
Under 15 57 7.6% -56.8%
15 to 24 158 21.2% 38.6%
25 to 44 31 4.2% -53.7%
45 to 64 248 33.3% -13.6%
Over 65 251 33.7% 4.6%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 745 100% -11.3%
Racial breakdown
White
100%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0%
Other
0%
Value Percent
White 745 100%

Households in Rocky Ridge

A peek inside Rocky Ridge households

Rocky Ridge has 332 households, with an average of 2 members in each. Of these, 47.3% are families, while the remaining 52.7% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
332
0.3% year-over-year change
Average people per household
2
Non-family households
175
Family households
157
Value Percent YoY change
Non-family households 175 52.7% 43.4%
Family households 157 47.3% -24.9%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Rocky Ridge

The housing landscape of Rocky Ridge

Rocky Ridge's housing consists of 332 units, with 83.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 14.8% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1.5% of the housing landscape.

Housing units
332
-8.5% year-over-year change
Housing types
Value Percent
1 unit, detached 278 83.7%
1 unit, attached 49 14.8%
Mobile home 5 1.5%
Homes built since 2020
% year-over-year change

The age of buildings in Rocky Ridge

In Rocky Ridge, the median construction year is 1979. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 53 16% -59.5%
Built between 1950 and 1959 9 2.7% 12.5%
Built between 1960 and 1969 14 4.2% -65.0%
Built between 1970 and 1979 100 30.1% -14.5%
Built between 1980 and 1989 14 4.2% 55.6%
Built between 1990 and 1999 89 26.8% 709.1%
Built between 2000 and 2009 53 16% 12.8%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Rocky Ridge occupancy rates

Out of the 332 occupied housing units in Rocky Ridge, 81.3% are owner-occupied, while 18.7% are lived in by tenants.

Occupied housing units
332
0.3% year-over-year change
Occupancy breakdown
Renter occupied
62
Owner occupied
270
Value Percent YoY
change
Renter occupied 62 18.7% 287.5%
Owner occupied 270 81.3% -14.3%
Unoccupied housing units
0.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Rocky Ridge housing costs

Median housing costs per month
$1,630/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Rocky Ridge

Rocky Ridge education at a glance

About 39.2% of the population in Rocky Ridge went to high school, while 15.6% pursued college studies. Another 11.2% earned an associate degree and 13.5% hold a bachelor’s. Meanwhile, 12.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 52 8.3% 1,633.3%
High school diploma 246 39.2% -21.9%
College diploma 98 15.6% -7.5%
Associate degree 70 11.2% -44.0%
Bachelor's degree 85 13.5% 97.7%
Graduate degree 77 12.3% -26.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Rocky Ridge

How much people earn in Rocky Ridge

The average annual household income in Rocky Ridge was $118,317 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -7.9% change from the previous year. At the same time, the median income stood at $76,458, reflecting a -30.8% shift over the same period.

Average household income in Rocky Ridge
$118,317/year
-7.9% year-over-year change
Median household income in Rocky Ridge
$76,458/year
-30.8% year-over-year change

Rocky Ridge income by age

Those with someone between 45 and 64 in charge, often well established professionally, earn $129,516 overall. Overall, 99.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
45 - 64 $129,516 -18.1%
Above poverty level
738
Below poverty level
7
Value Percent YoY
change
Above poverty level 738 99.1% -12.1%
Below poverty level 7 0.9% N/A

Employment in Rocky Ridge

Workforce and job types in Rocky Ridge

71.7% of the working population are employed in professional or administrative positions, while 28.3% are in hands-on or service-based jobs. Also, 18.2% run their own businesses, 57.8% are employed by private companies, and 6.7% work in the public sector.

Workforce demographics

White collar
236
Blue collar
93
Value Percent YoY change
White collar 236 71.7% -18.1%
Blue collar 93 28.3% -6.1%
Employer type
Self employees
18.2%
Private companies
57.8%
Governmental workers
6.7%
Not for profit companies
17.3%
Value Percent YoY change
Self employees 60 18.2% -27.7%
Private companies 190 57.8% -12.4%
Governmental workers 22 6.7% -59.3%
Not for profit companies 57 17.3% 72.7%

Transportation in Rocky Ridge

How people get around in Rocky Ridge

Means of transportation
Value Percent YoY change
Car 210 100% -29.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Rocky Ridge by zipcode?

Zipcode Population Number of households Median income Average income
21778 745 332 $76,458 $118,363

Explore more communities

FAQs about Rocky Ridge demographics 

What is the total population of Rocky Ridge?

Rocky Ridge has a total population of 745 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -11.3% compared to a year ago.

What is the gender ratio in Rocky Ridge?

The gender ratio in Rocky Ridge is as follows:
  • 38.8% males (289 residents)
  • 61.2% females (456 residents)

What is the median age in Rocky Ridge?

The median age in Rocky Ridge is 58.4.

What is the age distribution of the population in Rocky Ridge?

The age distribution in Rocky Ridge is as follows:
  • Under 15: 7.6% (57 residents)
  • Ages 15-24: 21.2% (158 residents)
  • Ages 25-44: 4.2% (31 residents)
  • Ages 45-64: 33.3% (248 residents)
  • Over 65: 33.7% (251 residents)

What is the racial and ethnic makeup of Rocky Ridge?

The racial and ethnic makeup of Rocky Ridge is as follows:
  • White: 100% (745 residents)
  • Black or African American: 0% ( residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 0% ( residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 0% ( residents)
  • Other: 0% ( residents)

What percentage of the population in Rocky Ridge are U.S.-born citizens?

U.S.-born citizens represent 100% of the population in Rocky Ridge.

How many housing units are there in Rocky Ridge?

There are 332 housing units in Rocky Ridge, reflecting a -8.5% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Rocky Ridge and what is the average household size?

Rocky Ridge has a total of 332 households, with an average of 2 people in each.

What is the median household income in Rocky Ridge?

Rocky Ridge has a median household income of $76,458, representing a -30.8% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Rocky Ridge?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 71.7% (236 residents)
  • Blue-collar workers: 28.3% (93 residents)

Places of employment:
  • Self-employed: 18.2% (60 residents)
  • Private companies: 57.8% (190 residents)
  • Governmental workers: 6.7% (22 residents)
  • Not-for-profit companies: 17.3% (57 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025