Mariner Cove Neighborhood, Costa Mesa
Last updated: October 21, 2026
Crime Rate & Statistics
Safe neighborhood — below-average crime across most categories
Summary: Mariner Cove, Costa Mesa Crime Rate (2026)
Mariner Cove, Costa Mesa, CA has a crime safety grade of A- as of 2026. The overall crime rate is 63% above the national average.
Data source: FBI UCR & local law enforcement data. Last updated: October 21, 2026.
Safety at a Glance
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in Costa Mesa
Is Mariner Cove Safe?
Mixed — the grade is relative to other neighborhoods, but crime is above the national average. Mariner Cove in Costa Mesa, CA has a safety grade of A-. The overall crime index is 163, which is 63% above the national average of 100.
Compared to the Costa Mesa average (crime index 98), Mariner Cove is 65% higher in overall crime. Residents and visitors should exercise extra caution in this area, particularly after dark.
Looking at specific crime types, larceny / theft is the most elevated concern (index: 191, 91% above average), while rape is the lowest risk (index: 26). Property crime is more prevalent than violent crime here, consistent with broader national patterns.
Mariner Cove Crime Breakdown
Crime indices compared to national average (100) and Costa Mesa city average. Higher values mean more crime.
| Crime Type | Index | vs National | Risk Level | |
|---|---|---|---|---|
| Violent Crime | ||||
|
Murder
|
170 | +70% | High | |
|
Assault
|
137 | +37% | Moderate | |
|
Robbery
|
183 | +83% | High | |
|
Rape
|
26 | -74% | Low | |
| Property Crime | ||||
|
Burglary
|
149 | +49% | Moderate | |
|
Larceny / Theft
|
191 | +91% | High | |
|
Vehicle Theft
|
158 | +58% | High | |
How Mariner Cove Compares
Crime index by category: Mariner Cove vs Costa Mesa average vs national average.
Crime by Category
Overall Crime Comparison
Mariner Cove Crime Map
Crime heatmap based on block-group level data. Red areas indicate higher crime density.
See the crime score for a specific address
Mariner Cove Demographics & Context
Education
Housing
Racial Demographics
Nearby Neighborhoods
Frequently Asked Questions
What is the crime rate in Mariner Cove, Costa Mesa?
Mariner Cove in Costa Mesa, CA has a crime safety grade of A- as of 2026. The overall crime index is 163, which is 63% above the national average. Compared to the Costa Mesa average, crime in Mariner Cove is 65% higher.
Is Mariner Cove a safe neighborhood in Costa Mesa?
Mariner Cove has elevated crime levels with a safety grade of A-. Extra caution is recommended, especially at night. The highest concern is Larceny / Theft (index: 191), while Rape is the lowest risk (index: 26).
How does Mariner Cove compare to the rest of Costa Mesa?
Mariner Cove's overall crime index is 163, compared to the Costa Mesa average of 98. This means crime in Mariner Cove is 65% higher than the city average. For violent crime, the index is 129, and for property crime it is 166. However, crime can vary block by block, so checking the crime map for specific streets is recommended.
What type of crime is most common in Mariner Cove?
The most common crime type in Mariner Cove is Larceny / Theft, with a crime index of 191 (91% above the national average). Overall, property crime is more common than violent crime in this neighborhood, which is consistent with national trends.
What are safer neighborhoods near Mariner Cove?
Nearby neighborhoods with good safety ratings include Orange County Fairgrounds / Orange Coast College, Mesa del Mar, College Park and Bristol / Paularino. These areas are close to Mariner Cove and offer lower crime rates, making them worth considering for residents who prioritize safety.
What are the demographics of Mariner Cove?
Mariner Cove has a population of approximately 10. The median household income is $118,757. The median home value is $4,417,094. Research shows that economic factors can correlate with crime rates, though many other variables play a role in neighborhood safety.
How does Mariner Cove crime compare to the national average?
Mariner Cove's overall crime rate is 63% above the national average (index 163 vs 100). 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 October 2026.