21837 Zip Code, Mardela Springs

Crime Rate & Statistics

A-

Safe zip code — below-average crime across most categories

Safer than 0% of zip codes in Mardela Springs

Safety at a Glance

Overall Crime Moderate
Low 106 / 300 High
Violent Crime 122
22% above national avg
Property Crime 54
46% below national avg
City Ranking
0%
safer than other
Mardela Springs zip codes

Check a specific address

in Mardela Springs

Is 21837 a Safe Zip Code?

Yes — this zip code is safe. Zip code 21837 in Mardela Springs, MD has a safety grade of A-. The overall crime index is 106, which is 6% above the national average of 100. This zip code is safer than 0% of zip codes in Mardela Springs.

Looking at specific crime types, robbery is the most elevated concern (index: 152, 52% above average), while larceny / theft is the lowest risk (index: 31). Violent crime is a particular area of concern relative to property crime in this zip code.

Highest Risk
Robbery · Index 152 (52% above avg)
Lowest Risk
Larceny / Theft · Index 31 (69% below avg)

21837 Crime Breakdown

Crime indices compared to national average (100) and Mardela Springs city average. Higher values mean more crime.

Crime Type Index vs National Risk Level
Violent Crime
Murder
92 -8% Average
Assault
94 -6% Average
Robbery
152 +52% High
Rape
149 +49% Moderate
Property Crime
Burglary
97 -3% Average
Larceny / Theft
31 -69% Low
Vehicle Theft
33 -67% Low

21837 Crime Map

Crime heatmap based on block-group level data. Red areas indicate higher crime density.

Full Screen Map
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21837 Demographics & Context

Population
3,485
Median Income
$84,998
Home Value
$228,437
Median Age
42
Pop. Density
72/mi²

Education

Bachelor's Degree 8.7%
Graduate Degree 5.6%

Housing

77%
23%
Owner-occupied Renter-occupied

Racial Demographics

White 71.3%
Black 22.9%
Hispanic 2.7%
Asian 0.7%
21837 Crime Map
Interactive crime heatmap for this zip code
Mardela Springs Crime Statistics
View all Mardela Springs neighborhoods & city-wide data

Frequently Asked Questions

What is the crime rate in Zip code 21837, Mardela Springs?

Zip code 21837 in Mardela Springs, MD has a crime safety grade of A- as of 2026. The overall crime index is 106, which is 6% above the national average. Zip code 21837 is safer than 0% of neighborhoods in Mardela Springs.

Is Zip code 21837 a safe neighborhood in Mardela Springs?

Zip code 21837 is generally considered a safe neighborhood in Mardela Springs, earning a crime grade of A-. The highest concern is Robbery (index: 152), while Larceny / Theft is the lowest risk (index: 31). It is one of the safest neighborhoods in Mardela Springs.

What type of crime is most common in Zip code 21837?

The most prevalent crime type in Zip code 21837 is Robbery, with a crime index of 152 (52% above the national average). Violent crime is a particular concern in this neighborhood relative to property crime.

What are the demographics of Zip code 21837?

Zip code 21837 has a population of approximately 3,485. The median household income is $84,998. The median home value is $228,437. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.

How does Zip code 21837 crime compare to the national average?

Zip code 21837's overall crime rate is 6% above the national average (index 106 vs 100). Within Mardela Springs, it is safer than 0% of neighborhoods. For the most accurate picture, review the per-crime-type breakdown above, as some categories may differ significantly from the overall trend.

Crime data sourced from FBI UCR reports and local law enforcement agencies. Crime indices use 100 as the national average. Updated April 2026.