Crime Grade · FBI UCR Data · 2025
Mercer Island, WA Crime Grade
How Mercer Island grades for violent crime against every other reporting U.S. city — and against the rest of Washington — based on the FBI's Uniform Crime Reporting data.
National
2/10
vs. all U.S. cities ≥ 25,000 population
Washington
2/10
vs. Washington cities ≥ 10,000 population
In 2025, the violent crime rate in Mercer Island, WA was 67.5 per 100,000 residents (17 incidents over a population of 25,192). That puts Mercer Island Infinity% above the U.S. rate of 0.0 and 76% below the Washington statewide rate of 282.2.
That ranks Mercer Island #740 of 3,771 ranked U.S. cities, safer than 80% of them, and #14 of 91 in Washington. Violent crime is up 83% year over year and up 61% over the last five years.
Mercer Island, WA crime — key facts
- National Crime Grade
- A (2/10)
- Washington Grade
- A (2/10)
- Violent crime rate
- 67.5 / 100k
- National rank
- #740 of 3,771
- WA rank
- #14 of 91
- Safer than
- 80% of U.S. cities
- Year over year
- up 83%
- 5-year change
- up 61%
- Population
- 25,192
- Reporting agency
- Mercer Island Police Department
- Data year
- 2025 · FBI UCR
Reported by Mercer Island Police Department (FBI ORI WA0170900) to the FBI Uniform Crime Reporting Program. Download the full dataset (CSV) · methodology.
Violent crime rate, 5-year trend
Per 100,000 residents. Mercer Island (red), Washington (blue), U.S. average (gray dashed).
Mercer Island vs. U.S., 2025 — by offense
Rates per 100,000 residents for each offense category.
Full data, last 5 years
Rates per 100,000 residents. Raw counts in parentheses.
| Offense | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Violent crime | 41.9(11) | 99.5(25) | 68.3(17) | 36.9(9) | 67.5(17) |
| Murder | 0.0(0) | 8.0(2) | 0.0(0) | 0.0(0) | 4.0(1) |
| Rape | 15.2(4) | 11.9(3) | 8.0(2) | 4.1(1) | 11.9(3) |
| Robbery | 11.4(3) | 19.9(5) | 20.1(5) | 16.4(4) | 11.9(3) |
| Aggravated assault | 15.2(4) | 59.7(15) | 40.2(10) | 16.4(4) | 39.7(10) |
| Property crime | 1679.9(441) | 1695.8(426) | 1173.1(292) | 1253.3(306) | 952.7(240) |
| Burglary | — | — | — | — | — |
| Larceny | — | — | — | — | — |
| Motor vehicle theft | — | — | — | — | — |
How the Crime Grade is calculated
- What is the source of the Mercer Island, WA Crime Grade?
- FBI Uniform Crime Reporting via the Crime Data Explorer. Agency-level data, pulled directly. No third-party aggregators, no proprietary score.
- What metric does the Mercer Island Crime Grade use?
- Violent crime rate per 100,000 residents (murder + rape + robbery + aggravated assault), most recent fully-reported year.
- How is the national decile for Mercer Island calculated?
- Mercer Island's rate placed against all FBI-reporting U.S. cities with population ≥ 25,000. 1 = safest.
- How is the Washington state decile calculated?
- Same calculation restricted to Washington cities with population ≥ 10,000.
- How do decile scores convert to a letter grade?
- 1–3 = A · 4–5 = B · 6–7 = C · 8 = D · 9–10 = F.
- How often is the Mercer Island Crime Grade refreshed?
- Twice a year. The FBI typically releases the prior year's full data each September.
- What are the limits of this Crime Grade?
- The FBI relies on local agency reporting. Rates reflect what was reported, not what occurred.
Nearby cities in Washington
Comparable Washington cities by population.
Compare Mercer Island to other places
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