Ridge, MD · standard
ZIP Code 20680
St. Mary's County, Maryland — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,119
- 70/sq mi
- $397,500
- Median home value
- 29.0%
- Bachelor's or higher
The verdict
Ridge pairs upper-quartile home values, in a rural, renter-heavy area.
- Top 21%
- home value, US ZIPs
- 70
- people per sq mi
- 40%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20680 against every reporting US ZIP.
ZIP code 20680 is classified by USPS as a standard delivery area and covers roughly 16.0 square miles in Ridge, St. Mary's County, Maryland. The area is home to 1,119 residents, producing a population density of 70 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 20680 against Maryland and the nation.
On the economic side, the median household income for ZIP 20680 sits at —, while per-capita income is $25,412. The poverty rate stands at 37.7% and the unemployment rate at 0.5%. On housing, the median home value is $397,500 (11% below the state average) with median rent at $1,592 per month, and 39.9% of occupied units are owner-occupied, a direct signal of whether 20680 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 29.0% of adults hold a bachelor's degree or higher, the median age is 33.6, 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 20680 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 20680, Ridge, 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
1,119
Population
16.0
Area (sq mi)
70
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20680?
33.6
Median Age
36.3%
Male
63.7%
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?
$25,412
Per Capita Income
37.7%
Poverty Rate
0.5%
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?
288
Total Housing Units
288
Occupied Units
0
Vacant Units
2.29
Avg Household Size
Occupancy Type
$397,500
Median Home Value
-11% vs state
$1,592
Median Rent
1962
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 17 business establishments in ZIP 20680, employing approximately 126 people with a combined annual payroll of $4,326,000.
17
Businesses
126
Employees
$4.3M
Annual Payroll
2
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 4 | 23.5% |
| Retail trade | 3 | 17.6% |
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 20680 vs 20628 →
ZIP 20680 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
- 20634 5,927
Great Mills (20634)
5,927 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
- 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 20680 ranks #5 by population — useful context the national average alone can't give.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20628 | Dameron, MD | 594 | 2.7 mi |
| 20687 | Scotland, MD | 313 | 2.9 mi |
| 20684 | Saint Inigoes, MD | 1,125 | 2.8 mi |
| 20686 | Saint Marys City, MD | 1,332 | 5.5 mi |
| 20630 | Drayden, MD | 348 | 6.4 mi |
| 20674 | Piney Point, MD | 830 | 7.1 mi |
| 20667 | Park Hall, MD | 494 | 8.1 mi |
| 20653 | Lexington Park, MD | 24,481 | 8.7 mi |
| 20692 | Valley Lee, MD | 1,051 | 8.5 mi |
| 20634 | Great Mills, MD | 5,927 | 11.2 mi |
More ZIP Codes in St. Mary's County
Related Areas
Frequently Asked Questions
What county is ZIP code 20680 in? ▼
What is the population of ZIP code 20680? ▼
What is the average home value in ZIP 20680? ▼
What is the demographic makeup of ZIP 20680? ▼
How many businesses are in ZIP code 20680? ▼
What is the education level in ZIP code 20680? ▼
What percentage of residents own vs. rent in ZIP 20680? ▼
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ZIP Code Research Guides
Official Data Resources for Ridge, 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.