Mammoth Lakes, CA has a D safety grade (39/100) with a violent crime rate of 516 per 100,000, 47% above the national average.
FBI UCR 2024 · per-capita rates · small city
Mammoth Lakes is a small municipal reporter (7,171 on the UCR row). Per-100,000 violent and property rates are shown with CA and U.S. context.
Data updated 2026-08-24
Mammoth Lakes, CA carries a PlainCrime D safety grade with violent crime 47% above the U.S. average
According to the FBI Uniform Crime Reporting (UCR) Program for 2024, Mammoth Lakes, CA shows violent crime at 516 per 100,000 residents and property crime at 1,143.5 per 100,000. Violent crime runs 47% above the U.S. average. PlainCrime assigns grade D from those rates. Figures are voluntary agency submissions joined to population denominators; incomplete coverage can move the number.
2020–2024 direction
Across 4 comparable reporting years, the rate moved from 255.0 per 100,000 in 2020 to 516.0 in 2024 (+102.4%). The highest observed value was 516.0 in 2024 and the lowest 255.0 in 2020. Years whose submission failed the completeness test are left out of this comparison rather than plotted as change.
Comparable rate records
The nearest comparable 2024 records to Mammoth Lakes's 516.0 violent-crime rate per 100,000 are Apple Valley (516.3), Seaside (513.2), El Segundo (512.5), Hesperia (519.6). These are same-year agency submissions that pass the same completeness screen, not a claim that the cities have identical conditions. They make the cohort position above checkable against named records instead of a generic state average.
Offense mix
Violent offenses are 31.1% of the 119 Part I offenses reported in Mammoth Lakes for 2024, against a median of 17.1% across comparable California cities — a gap of 14.0 points. Offense mix is shaped by which agencies report and how incidents are classified as well as by the underlying offenses, so it describes the reported record rather than a settled difference in conditions.
Position in the state cohort
At 516.0 reported violent offenses per 100,000 residents in 2024, Mammoth Lakes ranks 118 of 458 — above 340 of the 457 other California cities whose 2024 submission passes this site’s completeness test. That is +57.1% against the cohort median of 328.5. Cities that did not report, or that reported implausibly low totals, are excluded from this cohort rather than counted as low-crime.
Property-offense composition
Larceny-theft is 90.2% of reported property offenses in Mammoth Lakes, against a cohort median of 69.5%. The remainder is burglary (7) and motor vehicle theft (1). Composition differences of this size usually track what kinds of places and property are present in a jurisdiction.
Property counts dominate Mammoth Lakes's FBI UCR Table 8 municipal row. Per-100,000 rates use the reporting-year population on that row; cities that fail the completeness test stay out of rate rankings. A citywide figure rarely describes any single neighbourhood inside the municipal boundary.
Small-city offense counts above are voluntary UCR submissions, not neighbourhood advice. Year-to-year swings can look large when the population base is modest.
Across 24.9 Census sq mi, Mammoth Lakes logged 3.3 property and 1.5 violent offenses per square mile in 2024.
Mammoth Lakes's 2024 book concentrates in larceny-theft (62% of 119 offenses; mix index 4,728).
Violent offenses are 31% of the municipal total; property offenses still dominate the count.
Mammoth Lakes offense mix (2024)
Density uses Census Gazetteer land area (24.9 sq mi); mix index is HHI x 10,000 on the offense-type shares above. Distinct from the per-100K rates in the hero.
| Offense | Count | Rate /100K |
|---|---|---|
| Property Crime | 82 | 1143.5 |
| Larceny-Theft | 74 | 1031.9 |
| Burglary | 7 | 97.6 |
| Arson | 3 | 41.8 |
| Motor Vehicle Theft | 1 | 13.9 |
| Violent Crime | 37 | 516 |
| Aggravated Assault | 34 | 474.1 |
| Rape | 2 | 27.9 |
| Robbery | 1 | 13.9 |
| Murder | 0 | 0 |
The chart omits 2021 rather than drawing an unsupported zero or partial-coverage dip. The table preserves the year and marks the gap.
Lead series · fell across 4 comparable years · FBI UCR
Secondary series · rose · 2020-2024 · FBI UCR
| Year | Coverage | Population | Violent Rate | Property Rate |
|---|---|---|---|---|
| 2020 | Comparable | 8,236 | 255 | 1165.6 |
| 2021 | Insufficient reporting | 8,326 | - | - |
| 2022 | Comparable | 7,325 | 395.9 | 1747.4 |
| 2023 | Comparable | 7,030 | 441 | 1237.6 |
| 2024 | Comparable | 7,171 | 516 | 1143.5 |
Mammoth Lakes Police Department filed the 2024 UCR row behind Mammoth Lakes's 119 reported offenses (4-year span 2020-2024, with internal gaps).
This agency reports via NIBRS, the incident-based system that captures more detail per offense (multiple crimes per incident, victim/offender data) than the older summary counts.
Crime rates read differently at different scales, so these are the California cities closest to Mammoth Lakes in population. Their populations run from 6,945 to 7,437, against 7,171 here. Or use our side-by-side compare tool to benchmark two cities directly.
Mammoth Lakes sits at 516/100K violent (grade D); the California cities below are the nearest matches after size peers are removed.
In 2024, Mammoth Lakes reported 37 violent crimes and 82 property crimes, for a total of 119 reported offenses.
From 2023 to 2024, Mammoth Lakes's violent crime rate increased by 17%, and the property crime rate decreased by 7.6%.
The most common crime type in Mammoth Lakes is larceny-theft, accounting for 62.2% of all reported crimes (74 incidents in 2024).
Small-city read: Mammoth Lakes is sourced from FBI UCR Table 8 for 2024; rates use that row's population.
Small-city rows use the same per-100,000 formula; a few unreported years can leave gaps in the trend table. Verify the agency's submission on FBI.gov UCR.
Disclaimer (small city): UCR counts here are informational only. They are not a victimization probability. Source: FBI UCR Program.
Small-city rate methodology for how Mammoth Lakes's small city row is sourced and ranked.
Source: FBI Uniform Crime Reporting (UCR) Program CIUS Table 8 municipal crime rates · 2024 Mammoth Lakes, CA rates use the reporting-year population on the municipal row.
Bulk download: city crime dataset (CSV/JSON)
Every figure on PlainCrime is rendered directly from FBI Uniform Crime Reporting (UCR) source data, no number is typed in by an editor. Mammoth Lakes is scored as a small-city UCR reporter (7,171 on the row). See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.