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 Moderate-density area
- $104,545
- Median income Above-median income area
- $430,600
- Median home value Above-median home value
- 11.7%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
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 average Maryland ZIP), while per-capita income is $42,416. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.4% and unemployment is 2.8%. Median home value is $430,600 (4% below the average Maryland ZIP) and median rent is $1,299; 87.5% of occupied homes are owner-occupied.
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 -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in St. Mary's County, so 20624 can be compared with both its immediate and county-level context.
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.
- Construction
Construction
11 establishments
- Transportation and warehousing
Transportation and warehousing
6 establishments
- Retail trade
Retail trade
5 establishments
- Other services (except public administration) 3
Other services (except public administration)
3 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, 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
Who lives in ZIP 20624?
41.3
Median Age
52.8%
Male
47.2%
Female
0.0%
Foreign-Born
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 ZIP avg
$42,416
Per Capita Income
6.4%
Poverty Rate
2.8%
Unemployment Rate
How ZIP 20624 ranks among Maryland ZIPs
Clements, MD household income vs. every Maryland ZIP code
Median household income among 419 reporting Maryland ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$104,545 48th percentile higher than 48% of 419 Maryland ZIPs
Each bar is a $20K-wide band; taller bars hold more Maryland 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
302housing units
302
Total Housing Units
296
Occupied Units
6
Vacant Units
2.69
Avg Household Size
Occupancy Type
$430,600
Median Home Value
-4% vs state ZIP avg
$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.
- 20659
Mechanicsville (20659)
23,498 residents
- 20650
Leonardtown (20650)
13,717 residents
- 20622 4,900
Charlotte Hall (20622)
4,900 residents
- 20621 1,373
Chaptico (20621)
1,373 residents
- 20624 1,282
Clements (20624)
1,282 residents
- 20609 1,120
Avenue (20609)
1,120 residents
- 20625 1,062
Cobb Island (20625)
1,062 residents
- 20618 607
Bushwood (20618)
607 residents
- 20606 431
Abell (20606)
431 residents
What this shows Among its immediate neighbors, ZIP 20624 ranks #5 by population - useful context the national average alone can't give.
ZIP 20624 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20650
Leonardtown (20650)
$143,116 median income
- 20622
Charlotte Hall (20622)
$124,063 median income
- 20659
Mechanicsville (20659)
$121,654 median income
- 20609
Avenue (20609)
$118,102 median income
- 20618
Bushwood (20618)
$105,508 median income
- 20624
Clements (20624)
$104,545 median income
- 20606
Abell (20606)
$88,262 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 20624, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,282 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in St. Mary's County
Related Areas
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.
Related
Take this with you
What to do with ZIP 20624's numbers, next.
- See how ZIP 20624 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Clements, MD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.