Saint Mary's City, MD demographics:
population, income, and more

Total population
944
2.3% year-over-year change
Median household income
$/yr
% year-over-year change
Housing units
% year-over-year change

Saint Mary's City population

How many people live in Saint Mary's City

Saint Mary's City is home to 944 residents, according to the most recent Census data. Gender-wise, 35.3% of Saint Mary's City locals are male, and 64.7% are female.

Total population
944
2.3% year-over-year change
Gender ratio
Male
35.3%
333
Female
64.7%
611
Value Percent YoY change
Male 333 35.3% -9.3%
Female 611 64.7% 9.9%
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

Adults between 25 and 44 make up 0.8% of the population, while another 0.3% fall into the 45 to 64 bracket.

Median age
20.3
Age breakdown
Under 15
0%
15 to 24
98.8%
25 to 44
0.8%
45 to 64
0.3%
Over 65
0%
Value Percent YoY change
15 to 24 933 98.8% 1.9%
25 to 44 8 0.8% 100.0%
45 to 64 3 0.3% 0.0%
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

In Saint Mary's City, 93.2% of the population are US-born citizens, while 4.9% have gained naturalized citizenship. At the same time, 1.9% of residents are non-citizens. As for race, 79.2% of locals are Caucasian, 10.3% are African American and 5.5% have Asian roots. There’s also a share of 4.8% that includes residents with two or more races.

Citizenship
U.S.-born citizens
93.2%
Non-U.S.-born citizens
4.9%
Non-citizens
1.9%
Value Percent YoY change
U.S.-born citizens 880 93.2% 1.9%
Non-U.S.-born citizens 46 4.9% 7.0%
Non-citizens 18 1.9% 12.5%
Racial breakdown
White
79.2%
Black or African American
10.3%
American Indian and Alaska Native
0%
Asian
5.5%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.8%
Other
0.3%
Value Percent
White 748 79.2%
Black or African American 97 10.3%
Asian 52 5.5%
Two or more races 45 4.8%
Other 3 0.3%

Housing in Saint Mary's City

The housing landscape of Saint Mary's City

Education in Saint Mary's City

Saint Mary's City education at a glance

About 27.3% of the population in Saint Mary's City went to high school, while 69.8% pursued college studies. Another 1.1% earned an associate degree and 1% hold a bachelor’s. Meanwhile, 0.8% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
High school diploma 258 27.3% -10.1%
College diploma 660 69.8% 9.8%
Associate degree 10 1.1% 0.0%
Bachelor's degree 9 1% -10.0%
Graduate degree 8 0.8% 100.0%
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 Saint Mary's City

How much people earn in Saint Mary's City

Saint Mary's City income by age

Income breakdown by age
Value YoY change

Employment in Saint Mary's City

Workforce and job types in Saint Mary's City

96.2% of the working population are employed in professional or administrative positions, while 3.8% are in hands-on or service-based jobs. Also, 5.4% run their own businesses, 49% are employed by private companies, and 43.3% work in the public sector.

Workforce demographics

White collar
427
Blue collar
17
Value Percent YoY change
White collar 427 96.2% 37.3%
Blue collar 17 3.8% 0.0%
Employer type
Self employees
5.4%
Private companies
49%
Governmental workers
43.3%
Not for profit companies
2.3%
Value Percent YoY change
Self employees 24 5.4% 242.9%
Private companies 217 49% 7.4%
Governmental workers 192 43.3% 104.3%
Not for profit companies 10 2.3% -58.3%

Transportation in Saint Mary's City

How people get around in Saint Mary's City

Commuting methods vary: 33% of residents travel by personal vehicle and 65.9% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 86 33% 17.8%
Bicycle 3 1.2% -72.7%
Walk 172 65.9% 7.5%
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 Saint Mary's City by zipcode?

Zipcode Population Number of households Median income Average income
20686 971 0 $0 $0

Explore more communities

FAQs about Saint Mary's City demographics 

What is the total population of Saint Mary's City?

Saint Mary's City has a total population of 944 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 +2.3% compared to a year ago.

What is the gender ratio in Saint Mary's City?

The gender ratio in Saint Mary's City is as follows:
  • 35.3% males (333 residents)
  • 64.7% females (611 residents)

What is the median age in Saint Mary's City?

The median age in Saint Mary's City is 20.3.

What is the age distribution of the population in Saint Mary's City?

The age distribution in Saint Mary's City is as follows:
  • Under 15: 0% ( residents)
  • Ages 15-24: 98.8% (933 residents)
  • Ages 25-44: 0.8% (8 residents)
  • Ages 45-64: 0.3% (3 residents)
  • Over 65: 0% ( residents)

What is the racial and ethnic makeup of Saint Mary's City?

The racial and ethnic makeup of Saint Mary's City is as follows:
  • White: 79.2% (748 residents)
  • Black or African American: 10.3% (97 residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 5.5% (52 residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 4.8% (45 residents)
  • Other: 0.3% (3 residents)

What percentage of the population in Saint Mary's City are U.S.-born citizens?

U.S.-born citizens represent 93.2% of the population in Saint Mary's City.

How many housing units are there in Saint Mary's City?

There are housing units in Saint Mary's City, reflecting a % change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Saint Mary's City and what is the average household size?

Saint Mary's City has a total of households, with an average of people in each.

What is the job market overview for Saint Mary's City?

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

Job types:
  • White-collar workers: 96.2% (427 residents)
  • Blue-collar workers: 3.8% (17 residents)

Places of employment:
  • Self-employed: 5.4% (24 residents)
  • Private companies: 49% (217 residents)
  • Governmental workers: 43.3% (192 residents)
  • Not-for-profit companies: 2.3% (10 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