Zip Code 21075
Elkridge, Maryland — Howard County
📍 ZIP code 21075 is in Elkridge, Howard County, Maryland.
ZIP code 21075 is located in Elkridge, Howard County, Maryland. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 37,146. The area code for ZIP code 21075 is 301.
Quick Answer
Zip code 21075 is in Elkridge, Maryland (Howard County). It has a population of 37,146, median household income of $133,321, and median home value of $439,400.
Population
37,146
Income
$133,321
Home Value
$439,400
Climate
89°F / 25°F
About Zip Code 21075
Zip code 21075 is located in Elkridge, Maryland, within Howard County. Home to approximately 37,146 residents, this area sits at an elevation of 202 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 301.
The median household income is $133,321 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $439,400, and the cost of living index is 156 (56% above the national average of 100).
Summers average a high of 89°F while winters drop to 25°F. The area receives about 45 in of rain and 19 in of snow annually. The zip code covers 14.5 square miles of land area and 0.1 square miles of water.
Key Statistics
37,146
$133,321
$439,400
Eastern (EST/EDT)
301
202 ft
14.5 sq mi
33.9
13,191
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Compare With Nearby Zip Codes
| Metric | 21075 | 21076 | 21090 | 21045 | 20794 | 21077 |
|---|---|---|---|---|---|---|
| City | Elkridge, MD | Elkridge, MD | Linthicum Heights, MD | Columbia, MD | Jessup, MD | Elkridge, MD |
| Population | 37,146 | 23,642 | 10,033 | 40,866 | 16,182 | 137 |
| Median Income | $133,321 | $143,409 | $124,688 | $117,323 | $105,441 | $180,167 |
| Home Value | $439,400 | $492,100 | $374,300 | $438,500 | $393,700 | $425,000 |
| Cost of Living | 156 | 175 | 142 | 151 | 141 | 183 |
| Median Age | 33.9 | 37.1 | 38.3 | 38.4 | 37.3 | 40.3 |
Cost of Living
100 = National Average. Elkridge's cost of living is 56% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.3x
Demographics
Zip code 21075 has a population of 37,146 people with a median age of 33.9. There are 13,191 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Elkridge (21075) population trend from 2010 to 2024
↓ -15.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
25°F
45 in
19 in
Elkridge experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 25°F. The area receives about 19 in of snow per year.
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Housing & Economy
Median Home Value
$439,400
Median Household Income
$133,321
With 13,191 housing units across 14.5 square miles, 21075 has a housing density of 910 units per square mile. The home price-to-income ratio is 3.3x.
Location & Geography
Latitude
39.2031°
Longitude
-76.7507°
Land Area
14.5 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 21075 (Elkridge, MD) with distances:
All Zip Codes in Elkridge, MD
Other zip codes serving Elkridge:
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 21075's $133,321. A way to compare Elkridge 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 21075 (Elkridge, 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 Elkridge, Maryland?
Elkridge, Maryland uses zip code 21075 along with 2 other zip codes.
What county is zip code 21075 in?
Zip code 21075 is located in Howard County, Maryland.
What is the population of zip code 21075?
The population of zip code 21075 is 37,146 with a median age of 33.9.
Is 21075 in Elkridge, Maryland?
Yes, zip code 21075 is in Elkridge, Howard County, Maryland. The area code is 301.
Frequently Asked Questions
What city is zip code 21075 in?
Zip code 21075 is in Elkridge, Maryland. It is part of Howard County and uses the Eastern (EST/EDT) timezone.
What is zip code 21075?
Zip code 21075 is a U.S. postal code in Elkridge, Maryland (Howard County). It has a population of 37,146 and covers 14.5 square miles.
What is the population of zip code 21075?
The population of zip code 21075 (Elkridge, MD) is 37,146 with a median age of 33.9. There are approximately 13,191 housing units in this area.
What is the median income in zip code 21075?
The median household income in zip code 21075 (Elkridge, MD) is $133,321 per year. The cost of living index is 156 (100 = national average).
What is the average home price in zip code 21075?
The median home value in zip code 21075 (Elkridge, MD) is $439,400. The cost of living index is 156 compared to the national average of 100.
What county is zip code 21075 in?
Zip code 21075 is located in Howard County, Maryland. The primary city is Elkridge.
What is the area code for zip code 21075?
Zip code 21075 in Elkridge, MD uses area code 301. It is located in the Eastern (EST/EDT) timezone.
Is zip code 21075 a good place to live?
Zip code 21075 (Elkridge, MD) has a cost of living index of 156 (100 = national average), a median household income of $133,321, and median home values of $439,400. The median age is 33.9. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 21075?
The cost of living index for zip code 21075 (Elkridge, MD) is 156, where 100 represents the national average. This area is above the national average. Median home value: $439,400.
What schools serve zip code 21075?
Zip code 21075 in Elkridge, Maryland is served by the local school district of Howard 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.