Tall Timbers, MD · standard
ZIP Code 20690
St. Mary's County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 740
- 158/sq mi High-density area
- $122,750
- Median income Above-median income area
- $379,700
- Median home value Above-median home value
- 39.0%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Tall Timbers pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 9%
- household income, US ZIPs
- Top 23%
- home value, US ZIPs
- 158
- people per sq mi
- 75%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20690 against every reporting US ZIP.
ZIP code 20690 is a sparsely populated ZIP (a standard USPS delivery area) in Tall Timbers, St. Mary's County, Maryland, home to just 740 residents across 4.7 square miles, a density of 158 people per square mile, in the New York time zone.
ZIP 20690 skews affluent, with a median household income of $122,750 (8% above the average Maryland ZIP), while per-capita income is $55,799. The poverty rate is 9.3%, with unemployment at 1.5%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $379,700 (15% below the average Maryland ZIP), and median rent is $1,412; owner occupancy is 75.3%.
A solid share of residents have a four-year degree: 39.0% of adults hold a bachelor's degree or higher, the median age is 45.7, 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 20690 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 20690, Tall Timbers, 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
740
Population
4.7
Area (sq mi)
158
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20690?
45.7
Median Age
50.7%
Male
49.3%
Female
2.1%
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?
$122,750
Median Household Income
+8% vs state ZIP avg
$55,799
Per Capita Income
9.3%
Poverty Rate
1.5%
Unemployment Rate
How ZIP 20690 ranks among Maryland ZIPs
Tall Timbers, MD household income vs. every Maryland ZIP code
Median household income among 419 reporting Maryland ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$122,750 Top 37% higher than 63% of 419 Maryland ZIPs
Each bar is a $20K-wide band; taller bars hold more Maryland ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
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
655housing units
655
Total Housing Units
478
Occupied Units
177
Vacant Units
2.24
Avg Household Size
Occupancy Type
$379,700
Median Home Value
-15% vs state ZIP avg
$1,412
Median Rent
1990
Median Year Built
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 20690, employing approximately 29 people with a combined annual payroll of $852,000.
6
Businesses
29
Employees
$852K
Annual Payroll
0
Industry Sectors
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 20690 vs 20692 →
ZIP 20690 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
- 20619
California (20619)
10,503 residents
- 20634 5,927
Great Mills (20634)
5,927 residents
- 20620 1,443
Callaway (20620)
1,443 residents
- 20686 1,332
Saint Marys City (20686)
1,332 residents
- 20684 1,125
Saint Inigoes (20684)
1,125 residents
- 20692 1,051
Valley Lee (20692)
1,051 residents
- 20674 830
Piney Point (20674)
830 residents
- 20690 740
Tall Timbers (20690)
740 residents
What this shows Among its immediate neighbors, ZIP 20690 ranks #9 by population - useful context the national average alone can't give.
ZIP 20690 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20630
Drayden (20630)
$233,411 median income
- 20692
Valley Lee (20692)
$201,250 median income
- 20684
Saint Inigoes (20684)
$180,060 median income
- 20674
Piney Point (20674)
$171,985 median income
- 20620
Callaway (20620)
$165,972 median income
- 20634
Great Mills (20634)
$139,375 median income
- 20690
Tall Timbers (20690)
$122,750 median income
- 20619
California (20619)
$119,432 median income
- 20653
Lexington Park (20653)
$103,048 median income
What this shows By household income, ZIP 20690 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20692 | Valley Lee, MD | 1,051 | 2.2 mi |
| 20674 | Piney Point, MD | 830 | 2.4 mi |
| 20630 | Drayden, MD | 348 | 3.0 mi |
| 20620 | Callaway, MD | 1,443 | 4.8 mi |
| 20686 | Saint Marys City, MD | 1,332 | 5.5 mi |
| 20634 | Great Mills, MD | 5,927 | 5.9 mi |
| 20619 | California, MD | 10,503 | 8.9 mi |
| 20684 | Saint Inigoes, MD | 1,125 | 6.7 mi |
| 20667 | Park Hall, MD | 494 | 6.0 mi |
| 20653 | Lexington Park, MD | 24,481 | 7.0 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 20690, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in St. Mary's County
Related Areas
Frequently Asked Questions
What county is ZIP code 20690 in?
ZIP code 20690 (Tall Timbers) 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 20690?
ZIP code 20690 in Tall Timbers, MD has a population of 740 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 20690?
The median household income in ZIP 20690 is $122,750, which is 61% above the national average of $76,288.
What is the average home value in ZIP 20690?
The median home value in ZIP 20690 is $379,700, which is 37% above the national average of $278,155.
What is the demographic makeup of ZIP 20690?
The largest racial group in ZIP 20690 is White at 93.5%. Hispanic or Latino residents make up 5.2% of the population.
How many businesses are in ZIP code 20690?
ZIP code 20690 has 6 business establishments employing approximately 29 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 20690?
In ZIP code 20690, 49.9% of residents aged 25+ have a high school diploma or higher, and 39.0% 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 20690?
In ZIP code 20690, approximately 75.3% of occupied housing units are owner-occupied and 24.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20690?
The poverty rate in ZIP code 20690 is 9.3% 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 20690's numbers, next.
- See how ZIP 20690 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Tall Timbers, 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.