PlainZIP

Clements, MD · standard

ZIP Code 20624

St. Mary's County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,282
39/sq mi
$104,545
Median income
$430,600
Median home value
11.7%
Bachelor's or higher

The verdict

Clements pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 16%
household income, US ZIPs
Top 18%
home value, US ZIPs
39
people per sq mi
88%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20624 against every reporting US ZIP.

ZIP code 20624 is a sparsely populated ZIP (a standard USPS delivery area) in Clements, St. Mary's County, Maryland, home to just 1,282 residents across 32.6 square miles, a density of 39 people per square mile, in the New York time zone.

ZIP 20624 lands in the middle-income range, with a median household income of $104,545 (8% below the Maryland average), while per-capita income is $42,416. Local economic indicators show a 6.4% poverty rate alongside 2.8% unemployment. Median home value sits at $430,600 (4% below the state average), median rent at $1,299 a month, and owner-occupancy at 87.5%.

Formal educational attainment runs low here: just 11.7% of adults hold a bachelor's degree or higher, the median age is 41.3, and the average commute is -. To put 20624 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in St. Mary's County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 20624

Top 5 sectors by establishment count in Clements, MD

Which industries have the most business establishments in ZIP 20624.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 20624, Clements, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,282

Population

32.6

Area (sq mi)

39

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 20624?

41.3

Median Age

52.8%

Male

47.2%

Female

0.0%

Foreign-Born

White 99.5%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.5%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$104,545

Median Household Income

-8% vs state

$42,416

Per Capita Income

6.4%

Poverty Rate

2.8%

Unemployment Rate

How ZIP 20624 ranks nationally

Clements, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$104,545 Top 16% higher than 84% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 61.7%
Bachelor's Degree or Higher 11.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

302

Total Housing Units

296

Occupied Units

6

Vacant Units

2.69

Avg Household Size

Occupancy Type

Owner 87.5%
Renter 12.5%

$430,600

Median Home Value

-4% vs state

$1,299

Median Rent

1989

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 32 business establishments in ZIP 20624, employing approximately 131 people with a combined annual payroll of $6,600,000.

32

Businesses

131

Employees

$6.6M

Annual Payroll

4

Industry Sectors

Industry Establishments % of Total
Construction 11 34.4%
Transportation and warehousing 6 18.8%
Retail trade 5 15.6%
Other services (except public administration) 3 9.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 20624 vs 20621 →

ZIP 20624 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 20624 ranks #5 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 20624 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 20624 ranks #6 of 7 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
20621 Chaptico, MD 1,373 3.2 mi
20660 Morganza, MD 97 2.9 mi
20606 Abell, MD 431 5.3 mi
20609 Avenue, MD 1,120 4.4 mi
20659 Mechanicsville, MD 23,498 5.8 mi
20618 Bushwood, MD 607 4.7 mi
20626 Coltons Point, MD 373 7.4 mi
20650 Leonardtown, MD 13,717 7.1 mi
20625 Cobb Island, MD 1,062 7.9 mi
20622 Charlotte Hall, MD 4,900 10.0 mi

More ZIP Codes in St. Mary's County

20653 standard
Lexington Park, MD
Pop: 24,481
20659 standard
Mechanicsville, MD
Pop: 23,498
20650 standard
Leonardtown, MD
Pop: 13,717
20619 standard
California, MD
Pop: 10,503
20636 standard
Hollywood, MD
Pop: 9,937
20634 standard
Great Mills, MD
Pop: 5,927

Related Areas

St. Mary's County Clements, MD Maryland

Frequently Asked Questions

What county is ZIP code 20624 in? ▼
ZIP code 20624 (Clements) is located in St. Mary's County, Maryland. St. Mary's County contains multiple ZIP codes, see the full list at /counties/st-marys-md.
What is the population of ZIP code 20624? ▼
ZIP code 20624 in Clements, MD has a population of 1,282 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 20624? ▼
The median household income in ZIP 20624 is $104,545, which is 37% above the national average of $76,288.
What is the average home value in ZIP 20624? ▼
The median home value in ZIP 20624 is $430,600, which is 55% above the national average of $278,155.
What is the demographic makeup of ZIP 20624? ▼
The largest racial group in ZIP 20624 is White at 99.5%.
How many businesses are in ZIP code 20624? ▼
ZIP code 20624 has 32 business establishments employing approximately 131 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 20624? ▼
The top industries by establishment count in ZIP 20624 are: Construction (11), Transportation and warehousing (6), Retail trade (5). There are 4 industry sectors represented in total.
What is the education level in ZIP code 20624? ▼
In ZIP code 20624, 61.7% of residents aged 25+ have a high school diploma or higher, and 11.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 20624? ▼
In ZIP code 20624, approximately 87.5% of occupied housing units are owner-occupied and 12.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20624? ▼
The poverty rate in ZIP code 20624 is 6.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.