Residential delivery area · Maryland
ZIP Code 20686: Saint Marys City, MD
ZIP code 20686 uses the postal name Saint Marys City, Maryland and lies entirely in St. Mary's County (Census 2020 ZIP-county file). About 970 people live there (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- ZBP2023
- Town
- Saint Marys City · its only residential ZIP
- County
- St. Mary's County
- Metro area
- Lexington Park, MD
- House district
- MD-5 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 0.3 sq mi · 3,583 people per sq mi
Where is ZIP code 20686?
20686 centers on 38.187°, -76.433° and covers 0.3 square miles of land plus 1.5 of water. It borders 3 ZIP codes: 20667, 20630, 20653.
The map draws ZIP code areas only. For the streets inside 20686, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 20686 compare with the rest of St. Mary's County?
| Measure | 20686 | In St. Mary's County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 971 | 12th of 27 | 350th of 477 |
| Median household income | – | not ranked | not ranked |
| Median home value | – | not ranked | not ranked |
20686's income and home value are not ranked: it has fewer than 1,000 residents (971). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 91% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 20686?
The 2020 Census counted 977 people in 20686; the ACS, which samples households over 2020-2024, estimates 971. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 971
- 2020 Census count
- 977
- Households
- 0
- Median age
- 20.3
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 20686?
Of the 971 people the ACS estimates in 20686, 0.0% are under 18 and 0.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (79.2%).
- Under 180.0%
- 18 to 64100.0%
- 65 and older0.0%
- White, not Hispanic79.2%
- Black, not Hispanic8.4%
- Asian, not Hispanic5.5%
- Other or two or more3.7%
- Hispanic or Latino3.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What are homes worth in 20686?
- Median home value (owners' estimate)
- –
- Median gross rent
- –
- Homes owned by their occupants
- –
- Housing units
- 0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 20686?
6 business establishments had a location in this ZIP code in 2023, 1 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 20686?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20667 | Park Hall | 150 | – | 2.1 mi |
| 20630 | Drayden | 559 | $233k | 2.5 mi |
| 20653 | Lexington Park | 26,852 | $103k | 3.5 mi |
| 20692 | Valley Lee | 505 | $201k | 3.7 mi (near) |
| 20684 | Saint Inigoes | 802 | $180k | 4.3 mi (near) |
| 20634 | Great Mills | 7,088 | $139k | 5.2 mi (near) |
| 20628 | Dameron | 503 | – | 5.6 mi (near) |
| 20620 | Callaway | 1,115 | $166k | 5.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.