US ZIP Code
20690

Tall Timbers, MD

St. Mary's County  ·  Maryland

● Active
👥 1,046 Population ↑ 16% since 2019
💰 $129,236 Median HH Income
▲ 69% above avg ↑ 70% since 2019
🎂 52.4 Median Age ↓ 10% since 2019
🏠 $558,900 Median Home Value
▲ 100% above avg ↑ 42% since 2019
🎓 60.7% College Grads
▲ 57% above avg
📊 15.0% Unemployment
▲ 207% above avg ↓ 27% since 2019
ZIP Code Details
ZIP Code20690
CityTall Timbers
StateMaryland (MD)
CountySt. Mary's County
Area Code227/240/301
Elevation7 ft
Latitude38.158366
Longitude-76.53478
TimezoneNew York (DST)
FIPS24037
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 48.9% (511) Female 51.2% (535) ♀

Race & Ethnicity

White: 89.5%Hispanic: 6.7%Asian: 2.5%Other: 1.3%Race
White89.5%
Hispanic6.7%
Asian2.5%
Other1.3%

Age Breakdown

Under 5
8%
5–17
12%
18–24
2%
25–44
20%
45–64
33%
65+
19%

Key Indicators

Median Age52.4 yrs ↓ 10% since 2019
Avg Household Size2.54
Below Poverty1.3% ▼ 87% below avg
College Grads60.7% ▲ 57% above avg
Unemployment15.0% ▲ 207% above avg
No HS Diploma96 (12%)
HS Graduate52 (6.5%)
Some College118 (14.7%)
Associates49 (6.1%)
Bachelors77 (9.6%)
Graduate Degree410 (51.1%)

Education

No HS: 12%HS Grad: 6.5%Some College: 14.7%Associates: 6.1%Bachelors: 9.6%Graduate: 51.1%Edu
No HS12.0%
HS Grad6.5%
Some College14.7%
Associates6.1%
Bachelors9.6%
Graduate51.1%
Housing & Income

Housing Tenure

Owner: 83.3%Renter: 16.8%Tenure
Owner83.3%
Renter16.8%

Home Value Distribution

$100k–150k
13%
$200k–300k
9%
$300k–500k
22%
Over $500k
56%

Financials

Median HH Income$129,236 ▲ 69% above avg ↑ 70% since 2019
Median Home Value$558,900 ▲ 100% above avg ↑ 42% since 2019
Home/Income Ratio4.3x (nat avg ~3.5x)
Median Rent$1,490/mo ↑ 11% since 2019
Total Units630
Vacant Units218
Avg HH Size2.54

Income Distribution

Under $25k
2%
$50k–75k
9%
$75k–100k
13%
$100k–150k
27%
$150k–200k
16%
Over $200k
32%
Employment & Commute

How People Get to Work

Drove Alone
87%
Work From Home
13%

Commute Time

Under 15 min
9%
15–30 min
17%
30–45 min
57%
Over 45 min
17%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
7%
1960s–1970s
4%
1980s–1990s
26%
2000+
61%

Summary

Total Units630
Vacant218
Owner Occupied83.3%
Renter Occupied16.8%
Avg HH Size2.54
Frequently Asked Questions
ZIP code 20690 is in Tall Timbers, MD, in St. Mary's County.
ZIP code 20690 is located in Maryland (MD).
ZIP code 20690 is in St. Mary's County, MD.
ZIP 20690 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 20690 is 1,046 people (ACS 2023).
The median household income in ZIP code 20690 is $129,236 (ACS 2023).
The median home value in ZIP 20690 is $558,900 (ACS 2023).
About ZIP Code 20690

ZIP code 20690 is located in Tall Timbers, Maryland, within St. Mary's County. With a population of 1,046, this is a sparsely populated ZIP code with a mature community — the median age is 52.4 years. Economically, 20690 is a upper-middle-income ZIP code: the median household income of $129,236 is significantly above the national average.

Real estate in ZIP code 20690 represents a premium housing market. The median home value of $558,900 is more than double the national average. Renters can expect to pay around $1,490 per month in median rent. Homeownership is strong here — 83.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 42% since 2019.

The population of 20690 is primarily White (89.48%). Residents are highly educated — 60.7% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 1.3%. Household income has grown by 70% since 2019.

The unemployment rate in 20690 stands at 15.0%, which is more than double the national average. About 13% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 85%.

Overall, ZIP code 20690 in Tall Timbers, MD is characterized as upper-middle-income, highly educated, a mature community, and predominantly owner-occupied. With 1,046 residents, a median household income of $129,236, and a median home value of $558,900, it offers a clear picture of life in this part of Maryland.