Residential delivery area · Maryland
ZIP Code 20690: Tall Timbers, MD
ZIP code 20690 is in Tall Timbers, Maryland, entirely in St. Mary's County (Census 2020 ZIP-county file). About 1,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $122,750 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Tall Timbers (71%) and Piney Point (29%).
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Tall Timbers · its only residential ZIP
- County
- St. Mary's County
- Census places
- Tall Timbers (71%) census-designated place; Piney Point (29%) census-designated place
- Metro area
- Lexington Park, MD
- House district
- MD-5 119th Congress
- State
- Maryland
- Time zone
- Eastern
- Land area
- 1.6 sq mi · 654 people per sq mi
Where is ZIP code 20690?
20690 centers on 38.158°, -76.535° and covers 1.6 square miles of land plus 0.6 of water. It borders 3 ZIP codes: 20674, 20692, 20630.
The map draws ZIP code areas only. For the streets inside 20690, 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 20690 compare with the rest of St. Mary's County?
| Measure | 20690 | In St. Mary's County | In MD |
|---|---|---|---|
| People (ACS 2020-2024) | 1,077 | 11th of 27 | 346th of 477 |
| Median household income | $123k | not ranked | not ranked |
| Median home value | $380k | not ranked | not ranked |
20690's median household income is not ranked: its 90% margin of error (±$35,391) is more than a quarter of the figure ($122,750); 20690's median home value is not ranked: its 90% margin of error (±$183,922) is more than a quarter of the figure ($379,700). 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 74% 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 20690?
The 2020 Census counted 954 people in 20690; the ACS, which samples households over 2020-2024, estimates 1,077. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 1,077±302 (90% margin)
- 2020 Census count
- 954
- Households
- 478
- Median age
- 45.7
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 20690?
Of the 1,077 people the ACS estimates in 20690, 19.4% are under 18 and 26.4% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.6%).
- Under 1819.4%
- 18 to 6454.2%
- 65 and older26.4%
- White, not Hispanic92.6%
- Hispanic or Latino5.2%
- Other or two or more1.4%
- Asian, not Hispanic0.8%
- Black, not Hispanic0.0%
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 do households in 20690 earn?
Median household income is $122,750 (ACS 2020-2024).
- Median household income
- $122,750±$35,391
- Income per person
- $55,799
- Below the poverty line
- 9.3%
- Unemployed (of the labor force)
- 1.5%
- Adults 25+ with a bachelor's degree
- 39.0%
- Adjusted gross income per tax return, 2022
- $138,171420 returns; wages 64% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 20690?
- Median home value (owners' estimate)
- $379,700
- Median gross rent
- $1,412
- Homes owned by their occupants
- 75.3%
- Housing units
- 655
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 20690?
6 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018 (ZIP Code Business Patterns).
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 20690?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 20674 | Piney Point | 769 | $172k | 0.8 mi |
| 20692 | Valley Lee | 505 | $201k | 2.4 mi |
| 20630 | Drayden | 559 | $233k | 3.9 mi |
| 20620 | Callaway | 1,115 | $166k | 5.2 mi (near) |
| 20686 | Saint Marys City | 971 | – | 5.9 mi (near) |
| 20634 | Great Mills | 7,088 | $139k | 6.1 mi (near) |
| 20667 | Park Hall | 150 | – | 6.1 mi (near) |
| 20684 | Saint Inigoes | 802 | $180k | 6.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.