Zip Code 21701
Frederick, Maryland — Frederick County
📍 ZIP code 21701 is in Frederick, Frederick County, Maryland.
ZIP code 21701 is located in Frederick, Frederick County, Maryland. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 41,340. The area code for ZIP code 21701 is 301.
Quick Answer
Zip code 21701 is in Frederick, Maryland (Frederick County). It has a population of 41,340, median household income of $102,306, and median home value of $404,900.
Population
41,340
Income
$102,306
Home Value
$404,900
Climate
89°F / 27°F
About Zip Code 21701
Zip code 21701 is located in Frederick, Maryland, within Frederick County. Home to approximately 41,340 residents, this area sits at an elevation of 418 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 301.
The median household income is $102,306 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $404,900, and the cost of living index is 135 (35% above the national average of 100).
Summers average a high of 89°F while winters drop to 27°F. The area receives about 44 in of rain and 8 in of snow annually. The zip code covers 39 square miles of land area and 0.6 square miles of water.
Key Statistics
41,340
$102,306
$404,900
Eastern (EST/EDT)
301
418 ft
39 sq mi
39.3
18,914
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Compare With Nearby Zip Codes
| Metric | 21701 | 21793 | 21774 | 21762 | 21702 | 21704 |
|---|---|---|---|---|---|---|
| City | Frederick, MD | Walkersville, MD | New Market, MD | Libertytown, MD | Frederick, MD | Frederick, MD |
| Population | 41,340 | 10,914 | 16,515 | 176 | 47,437 | 19,623 |
| Median Income | $102,306 | $128,504 | $171,875 | $0 | $104,659 | $164,457 |
| Home Value | $404,900 | $416,400 | $508,100 | $0 | $384,800 | $585,900 |
| Cost of Living | 135 | 150 | 187 | 100 | 131 | 206 |
| Median Age | 39.3 | 42.6 | 35.8 | 34 | 37.6 | 38.4 |
Cost of Living
100 = National Average. Frederick's cost of living is 35% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
4.0x
Demographics
Zip code 21701 has a population of 41,340 people with a median age of 39.3. There are 18,914 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Frederick (21701) population trend from 2010 to 2024
↑ 68.4%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
27°F
44 in
8 in
Frederick experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 27°F. The area receives about 8 in of snow per year.
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Housing & Economy
Median Home Value
$404,900
Median Household Income
$102,306
With 18,914 housing units across 39 square miles, 21701 has a housing density of 485 units per square mile. The home price-to-income ratio is 4.0x.
Location & Geography
Latitude
39.4436°
Longitude
-77.3329°
Land Area
39 sq mi
Water Area
0.6 sq mi
Nearby Zip Codes
Zip codes closest to 21701 (Frederick, MD) with distances:
All Zip Codes in Frederick, MD
Other zip codes serving Frederick:
Related Cities in Maryland
Explore zip codes in other Maryland cities:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 21701's $102,306. A way to compare Frederick 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 21701 (Frederick, 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 Frederick, Maryland?
Frederick, Maryland uses zip code 21701 along with 3 other zip codes.
What county is zip code 21701 in?
Zip code 21701 is located in Frederick County, Maryland.
What is the population of zip code 21701?
The population of zip code 21701 is 41,340 with a median age of 39.3.
Is 21701 in Frederick, Maryland?
Yes, zip code 21701 is in Frederick, Frederick County, Maryland. The area code is 301.
Frequently Asked Questions
What city is zip code 21701 in?
Zip code 21701 is in Frederick, Maryland. It is part of Frederick County and uses the Eastern (EST/EDT) timezone.
What is zip code 21701?
Zip code 21701 is a U.S. postal code in Frederick, Maryland (Frederick County). It has a population of 41,340 and covers 39 square miles.
What is the population of zip code 21701?
The population of zip code 21701 (Frederick, MD) is 41,340 with a median age of 39.3. There are approximately 18,914 housing units in this area.
What is the median income in zip code 21701?
The median household income in zip code 21701 (Frederick, MD) is $102,306 per year. The cost of living index is 135 (100 = national average).
What is the average home price in zip code 21701?
The median home value in zip code 21701 (Frederick, MD) is $404,900. The cost of living index is 135 compared to the national average of 100.
What county is zip code 21701 in?
Zip code 21701 is located in Frederick County, Maryland. The primary city is Frederick.
What is the area code for zip code 21701?
Zip code 21701 in Frederick, MD uses area code 301. It is located in the Eastern (EST/EDT) timezone.
Is zip code 21701 a good place to live?
Zip code 21701 (Frederick, MD) has a cost of living index of 135 (100 = national average), a median household income of $102,306, and median home values of $404,900. The median age is 39.3. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 21701?
The cost of living index for zip code 21701 (Frederick, MD) is 135, where 100 represents the national average. This area is above the national average. Median home value: $404,900.
What schools serve zip code 21701?
Zip code 21701 in Frederick, Maryland is served by the local school district of Frederick 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.