Zip Code 20657
Lusby, Maryland — Calvert County
📍 ZIP code 20657 is in Lusby, Calvert County, Maryland.
ZIP code 20657 is located in Lusby, Calvert County, Maryland. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 20,519. The area code for ZIP code 20657 is 301.
Quick Answer
Zip code 20657 is in Lusby, Maryland (Calvert County). It has a population of 20,519, median household income of $117,776, and median home value of $317,600.
Population
20,519
Income
$117,776
Home Value
$317,600
Climate
88°F / 30°F
About Zip Code 20657
Zip code 20657 is located in Lusby, Maryland, within Calvert County. Home to approximately 20,519 residents, this area sits at an elevation of 123 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 301.
The median household income is $117,776 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $317,600, and the cost of living index is 125 (25% above the national average of 100).
Summers average a high of 88°F while winters drop to 30°F. The area receives about 46 in of rain and 11 in of snow annually. The zip code covers 30.1 square miles of land area and 8.7 square miles of water.
Key Statistics
20,519
$117,776
$317,600
Eastern (EST/EDT)
301
123 ft
30.1 sq mi
35.7
8,109
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Compare With Nearby Zip Codes
| Metric | 20657 | 20629 | 20688 | 20685 | 20615 | 20670 |
|---|---|---|---|---|---|---|
| City | Lusby, MD | Dowell, MD | Solomons, MD | Saint Leonard, MD | Broomes Island, MD | Lexington Park, MD |
| Population | 20,519 | 1,067 | 1,113 | 6,481 | 422 | 1,577 |
| Median Income | $117,776 | $90,400 | $88,902 | $122,059 | $191,944 | $70,945 |
| Home Value | $317,600 | $459,500 | $436,800 | $431,200 | $478,900 | $0 |
| Cost of Living | 125 | 147 | 141 | 146 | 207 | 88 |
| Median Age | 35.7 | 60 | 72.1 | 45.2 | 49.9 | 22.9 |
Cost of Living
100 = National Average. Lusby's cost of living is 25% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
2.7x
Demographics
Zip code 20657 has a population of 20,519 people with a median age of 35.7. There are 8,109 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Lusby (20657) population trend from 2010 to 2024
↑ 1.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
88°F
30°F
46 in
11 in
Lusby experiences warm summers with average highs around 88°F. Winters are cool with lows averaging 30°F. The area receives about 11 in of snow per year.
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Housing & Economy
Median Home Value
$317,600
Median Household Income
$117,776
With 8,109 housing units across 30.1 square miles, 20657 has a housing density of 269 units per square mile. The home price-to-income ratio is 2.7x.
Location & Geography
Latitude
38.3798°
Longitude
-76.4429°
Land Area
30.1 sq mi
Water Area
8.7 sq mi
Nearby Zip Codes
Zip codes closest to 20657 (Lusby, MD) with distances:
Related Cities in Maryland
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 20657's $117,776. A way to compare Lusby to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 20657 (Lusby, MD). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Lusby, Maryland?
Lusby, Maryland uses zip code 20657.
What county is zip code 20657 in?
Zip code 20657 is located in Calvert County, Maryland.
What is the population of zip code 20657?
The population of zip code 20657 is 20,519 with a median age of 35.7.
Is 20657 in Lusby, Maryland?
Yes, zip code 20657 is in Lusby, Calvert County, Maryland. The area code is 301.
Frequently Asked Questions
What city is zip code 20657 in?
Zip code 20657 is in Lusby, Maryland. It is part of Calvert County and uses the Eastern (EST/EDT) timezone.
What is zip code 20657?
Zip code 20657 is a U.S. postal code in Lusby, Maryland (Calvert County). It has a population of 20,519 and covers 30.1 square miles.
What is the population of zip code 20657?
The population of zip code 20657 (Lusby, MD) is 20,519 with a median age of 35.7. There are approximately 8,109 housing units in this area.
What is the median income in zip code 20657?
The median household income in zip code 20657 (Lusby, MD) is $117,776 per year. The cost of living index is 125 (100 = national average).
What is the average home price in zip code 20657?
The median home value in zip code 20657 (Lusby, MD) is $317,600. The cost of living index is 125 compared to the national average of 100.
What county is zip code 20657 in?
Zip code 20657 is located in Calvert County, Maryland. The primary city is Lusby.
What is the area code for zip code 20657?
Zip code 20657 in Lusby, MD uses area code 301. It is located in the Eastern (EST/EDT) timezone.
Is zip code 20657 a good place to live?
Zip code 20657 (Lusby, MD) has a cost of living index of 125 (100 = national average), a median household income of $117,776, and median home values of $317,600. The median age is 35.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 20657?
The cost of living index for zip code 20657 (Lusby, MD) is 125, where 100 represents the national average. This area is above the national average. Median home value: $317,600.
What schools serve zip code 20657?
Zip code 20657 in Lusby, Maryland is served by the local school district of Calvert County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.