Dameron, MD · standard
ZIP Code 20628
St. Mary's County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 594
- 35/sq mi Moderate-density area
- $545,800
- Median home value Above-median home value
- 52.5%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Dameron pairs upper-quartile home values, in a rural, homeowner-dominated area.
- Top 11%
- home value, US ZIPs
- 35
- people per sq mi
- 83%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20628 against every reporting US ZIP.
ZIP code 20628 is a sparsely populated ZIP (a standard USPS delivery area) in Dameron, St. Mary's County, Maryland, home to just 594 residents across 17.2 square miles, a density of 35 people per square mile, in the New York time zone.
Median household income is not on file for ZIP 20628, but per-capita income is $60,310. The poverty rate is 4.6%, with unemployment at 9.1%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $545,800 (22% above the average Maryland ZIP), while 82.9% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 52.5% of adults hold a bachelor's degree or higher, the median age is 35.9, 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 20628 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 →
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 20628, Dameron, 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
594
Population
17.2
Area (sq mi)
35
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20628?
35.9
Median Age
50.3%
Male
49.7%
Female
4.8%
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?
$60,310
Per Capita Income
4.6%
Poverty Rate
9.1%
Unemployment Rate
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
268housing units
268
Total Housing Units
199
Occupied Units
69
Vacant Units
2.53
Avg Household Size
Occupancy Type
$545,800
Median Home Value
+22% vs state ZIP avg
1977
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 5 business establishments in ZIP 20628, employing approximately 37 people with a combined annual payroll of $1,838,000.
5
Businesses
37
Employees
$1.8M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Transportation and warehousing | 3 | 60.0% |
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 20628 vs 20680 →
ZIP 20628 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20653
Lexington Park (20653)
24,481 residents
- 20686 1,332
Saint Marys City (20686)
1,332 residents
- 20684 1,125
Saint Inigoes (20684)
1,125 residents
- 20680 1,119
Ridge (20680)
1,119 residents
- 20692 1,051
Valley Lee (20692)
1,051 residents
- 20670 1,014
Patuxent River (20670)
1,014 residents
- 20674 830
Piney Point (20674)
830 residents
- 20628 594
Dameron (20628)
594 residents
- 20667 494
Park Hall (20667)
494 residents
What this shows Among its immediate neighbors, ZIP 20628 ranks #8 by population - useful context the national average alone can't give.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20680 | Ridge, MD | 1,119 | 2.7 mi |
| 20684 | Saint Inigoes, MD | 1,125 | 3.1 mi |
| 20687 | Scotland, MD | 313 | 5.0 mi |
| 20686 | Saint Marys City, MD | 1,332 | 4.8 mi |
| 20630 | Drayden, MD | 348 | 6.7 mi |
| 20667 | Park Hall, MD | 494 | 6.9 mi |
| 20653 | Lexington Park, MD | 24,481 | 7.2 mi |
| 20674 | Piney Point, MD | 830 | 8.2 mi |
| 20692 | Valley Lee, MD | 1,051 | 8.5 mi |
| 20670 | Patuxent River, MD | 1,014 | 9.9 mi |
More ZIP Codes in St. Mary's County
Related Areas
Frequently Asked Questions
What county is ZIP code 20628 in?
ZIP code 20628 (Dameron) 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 20628?
ZIP code 20628 in Dameron, MD has a population of 594 according to the Census Bureau ACS 2023 estimates.
What is the average home value in ZIP 20628?
The median home value in ZIP 20628 is $545,800, which is 96% above the national average of $278,155.
What is the demographic makeup of ZIP 20628?
The largest racial group in ZIP 20628 is White at 76.1%. Hispanic or Latino residents make up 22.1% of the population.
How many businesses are in ZIP code 20628?
ZIP code 20628 has 5 business establishments employing approximately 37 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 20628?
In ZIP code 20628, 63.8% of residents aged 25+ have a high school diploma or higher, and 52.5% 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 20628?
In ZIP code 20628, approximately 82.9% of occupied housing units are owner-occupied and 17.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20628?
The poverty rate in ZIP code 20628 is 4.6% 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 20628's numbers, next.
- See how ZIP 20628 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Dameron, 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.