Saint Marys City, MD · standard
ZIP Code 20686
St. Mary's County, Maryland — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,332
- 475/sq mi
- 100.0%
- Bachelor's or higher
ZIP code 20686 is classified by USPS as a standard delivery area and covers roughly 2.8 square miles in Saint Marys City, St. Mary's County, Maryland. The area is home to 1,332 residents, producing a population density of 475 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 20686 against Maryland and the nation.
On the economic side, the median household income for ZIP 20686 sits at —, while per-capita income is $4,431. The poverty rate stands at — and the unemployment rate at 1.9%. On housing, the median home value is — with median rent at — per month, and — of occupied units are owner-occupied, a direct signal of whether 20686 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 100.0% of adults hold a bachelor's degree or higher, the median age is 20.3, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Mary's County, so you can benchmark 20686 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 20686, Saint Marys City, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
1,332
Population
2.8
Area (sq mi)
475
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20686?
20.3
Median Age
35.3%
Male
64.7%
Female
4.2%
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?
$4,431
Per Capita Income
1.9%
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?
0
Total Housing Units
0
Occupied Units
0
Vacant Units
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 6 business establishments in ZIP 20686, employing approximately 72 people with a combined annual payroll of $1,680,000.
6
Businesses
72
Employees
$1.7M
Annual Payroll
1
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 3 | 50.0% |
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 20686 vs 20667 →
ZIP 20686 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
- 20690 740
Tall Timbers (20690)
740 residents
- 20628 594
Dameron (20628)
594 residents
What this shows Among its immediate neighbors, ZIP 20686 ranks #2 by population — useful context the national average alone can't give.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20667 | Park Hall, MD | 494 | 2.7 mi |
| 20653 | Lexington Park, MD | 24,481 | 3.5 mi |
| 20630 | Drayden, MD | 348 | 2.5 mi |
| 20684 | Saint Inigoes, MD | 1,125 | 2.8 mi |
| 20692 | Valley Lee, MD | 1,051 | 3.8 mi |
| 20628 | Dameron, MD | 594 | 4.8 mi |
| 20670 | Patuxent River, MD | 1,014 | 7.1 mi |
| 20674 | Piney Point, MD | 830 | 4.9 mi |
| 20690 | Tall Timbers, MD | 740 | 5.5 mi |
| 20680 | Ridge, MD | 1,119 | 5.5 mi |
More ZIP Codes in St. Mary's County
Related Areas
Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Saint Marys City, MD
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.