San Lorenzo is policed by the county: what that means
San Lorenzo has no police department of its own: it’s an unincorporated community (a census-designated place) in Alameda County. The Alameda County Sheriff’s Office reports to the FBI for the parts of the county without police of their own, so there are no figures for San Lorenzo alone, and no Safety Grade. The closest graded town is San Leandro, 2 miles away, at D. There are 6 graded towns within 10 miles.
What stands out about safety in San Lorenzo
Policed by the county
San Lorenzo is a census-designated place, with no town government. Crimes there are reported to the FBI inside the Alameda County Sheriff’s Office’s totals for the county. County police ↓
Counts, not rates
The FBI doesn’t publish how many people the Alameda County Sheriff’s Office covers, so its totals can’t be turned into a per-resident rate or a grade for San Lorenzo. County police ↓
The nearest graded towns
The closest California towns with their own police figures are San Leandro (D, 2 mi), Hayward (D, 4 mi), Oakland (D−, 8 mi). Nearby towns can differ a lot from San Lorenzo. Nearest ↓
Written from the FBI data on this page. Figures are crimes reported to police, not convictions.
What the Alameda County Sheriff’s Office reports
Reports to the FBI for the parts of Alameda County without police of their own, which include San Lorenzo.
Property crimes
Violent crimes
2025 offenses reported by the Alameda County Sheriff’s Office
Counts, not rates: the FBI doesn’t publish how many people each agency covers. FBI Uniform Crime Reporting, Tables 10–11.
Crimes reported to the FBI for the whole area the department covers, by year.
The nearest California towns with a Safety Grade
| Town | Grade | Distance | Violent | Property |
|---|---|---|---|---|
| San Leandro | D | 2 mi | 5.8 | 42.8 |
| Hayward | D | 4 mi | 5.3 | 34.0 |
| Oakland | D− | 8 mi | 23.3 | 74.9 |
| Union City | C− | 8 mi | 4.5 | 24.0 |
| Alameda | D | 8 mi | 3.4 | 46.8 |
| Foster City | B+ | 10 mi | 0.6 | 8.3 |
Straight-line distance from the center of San Lorenzo. Nearby towns can differ a lot from San Lorenzo.
Each town’s own police figures, per 1,000 residents a year, 2023–2025.
Six people died in crashes on San Lorenzo’s roads in 2019–2023
San Lorenzo had 5 fatal crashes in five years, in which six people died; 2 were pedestrians. Most of these deaths (4 of 6) were on an Interstate passing through, so they say more about through-traffic than about the town’s own streets.
That is about what is typical for California towns of 25,000–100,000 people: at their median rate (5.6 deaths per 100,000 residents a year), a town of San Lorenzo’s size would see about 8 in five years. With numbers this small, a death or two either way changes the picture, so San Lorenzo’s own rate (4.1) is context, not a ranking.
Deaths are counted where the crash happened, not where the people lived: a highway through town adds through-traffic deaths, and residents’ own risk on roads elsewhere isn’t here. Town rates sit below state and U.S. rates because a third of fatal crashes happen outside any town. Road safety is described here and is not part of the Safety Grade. Source: NHTSA Fatality Analysis Reporting System (FARS), 2019–2023.
San Lorenzo and its neighbors
| Town | Grade | Violent | Property |
|---|---|---|---|
| Hayward | D | 5.3 | 34.0 |
| San Leandro | D | 5.8 | 42.8 |
| Ashland | — | — | — |
| Cherryland | — | — | — |
Crimes reported to the FBI per 1,000 residents a year, 2023–2025. Ashland and Cherryland are unincorporated communities (census-designated places) with no police department of their own.
How reported crime compares across the town line. Tap a town to see its safety page.
What this data can and can’t tell you
- It’s reported crime. Only incidents reported to and recorded by police appear here. Many crimes are never reported to police.
- A county agency covers a wide area. Its totals mix many communities, so they say little about any one of them.
- Gaps are real gaps. A missing year means the department didn’t report a full year, not that nothing happened.
How the grade is calculated, for every town: How TownRatings grades safety →
Questions about safety in San Lorenzo
Is San Lorenzo, CA safe?
There is no Safety Grade for San Lorenzo. The nearest California towns with a grade are San Leandro (D, 2 mi), Hayward (D, 4 mi), Oakland (D−, 8 mi).
Who polices San Lorenzo?
The Alameda County Sheriff’s Office. San Lorenzo is an unincorporated community, and the department reports to the FBI for the parts of Alameda County without police of their own.
Heads-up board
Your answer becomes a post in Town Square.
Please don’t name or describe individuals. In an emergency, call 911.
Neighbors looking out for each other in San Lorenzo.
Crime: FBI Uniform Crime Reporting Program, Crime Data Explorer: offenses known to law enforcement by city, and state and national rates. Counts are crimes reported to police, not convictions. The Safety Grade is our own summary of that data, not an official rating. Road deaths: NHTSA Fatality Analysis Reporting System (FARS), 2019–2023. This isn’t an official statement of public safety. In an emergency, call 911.