172 years in pictures
Census counts: 23,773 in 1960, 29,581 in 2020. The archive holds 6 old photos and papers going back to 2007 and 4 maps from 1899 on.
- 1854San Lorenzo is settled
Each edition grades its towns against each other only.
San Lorenzo grades B− overall, 239th among California's 841 graded towns, with clear strengths and some subjects that lag. The median household earns $113K and it is more walkable than 91% of U.S. towns. On the other side, FEMA rates its natural-hazard risk higher than 91% of U.S. communities, with earthquakes at the top. San Lorenzo’s July high is 75°F, against 89°F in California’s towns and 85°F across U.S. towns. The biggest park or preserve is San Lorenzo Park, at 32 acres.
Where San Lorenzo beats most towns, and one thing worth knowing.
23,452 counted in 2010 and 29,581 in 2020.
U.S. Census 2010 & 2020 counts
Each subject compared with towns across the country (schools within California), ordered by how far San Lorenzo is from typical.
How TownRatings grades towns →
Census counts: 23,773 in 1960, 29,581 in 2020. The archive holds 6 old photos and papers going back to 2007 and 4 maps from 1899 on.
Museums, parks, gardens and other places to visit around San Lorenzo. Close and well known come first.
Big draw19 mi MuseumAlcatraz Federal Penitentiary
Big draw11 mi MuseumUSS Hornet
Big draw21 mi Stadium & arenaLevi's Stadium
Big draw15 mi Stadium & arenaChase Center
Big draw16 mi Stadium & arenaOracle Park
Big draw18 mi LandmarkLombard StreetAlcatraz Federal Penitentiary: druchoy, CC BY-SA 2.0 · USS Hornet: kitmasterbloke, CC BY 2.0 · Levi's Stadium: Matthew Roth, CC BY-SA 2.0 · Chase Center: Gregory Varnum, CC BY-SA 4.0 · Oracle Park: User Coasttocoast on en.wikipedia, CC BY-SA 3.0 · Lombard Street: The original uploader was Y6y6y6 at English Wikipedia., Public domain
San Lorenzo is unincorporated, so Alameda County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
Ordered by what stands out in San Lorenzo.
San Lorenzo has milder winter nights than nearly all U.S. towns, has home values still below their peak and sends most of its workers to Oakland and beyond.
Since 2002, 2 flood insurance claims have been paid out in San Lorenzo.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
Its public schools are run by the San Lorenzo Unified school district. Three of its 12 schools are below, each with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| Bohannon MiddleLargest public middle schoolGrades 6–8 | Grades 6–8 | 606 | – |
| Arroyo HighLargest public high schoolGrades 9–12 | Grades 9–12 | 1,499 | – |
| KIPP King Collegiate HighTop results in townGrades 9–12 | Grades 9–12 | 662 | A |
NCES · EDFacts · graded within CA on state tests and graduation
San Lorenzo has 3,158 jobs for its 13,525 working residents: even if every job went to a resident, most would still commute out.
Most working residents leave San Lorenzo for work: only 3% work in town. The average trip to work in San Lorenzo is 31 minutes. Jobs based in San Lorenzo fell to 3,158 in 2023, 273 fewer than in 2013.
| San Lorenzo | California towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 31 minutes | 28 minutes | 25 minutes |
| Median household income | $113,000 | $95,000 | $80,000 |
| Below the poverty line | 4.6% | 10% | 9.6% |
| Work from home | 8.3% | 14% | 11% |
Census LEHD 2023 · ACS
Against the 6,780 U.S. towns with household incomes like San Lorenzo’s, it is less healthy than 63%: its national edge comes with its incomes.
40% of San Lorenzo adults feel lonely.
| San Lorenzo | California towns | U.S. towns | |
|---|---|---|---|
| Feel lonely (CDC PLACES) | 40% | 36% | 33% |
| Obesity (CDC PLACES) | 25% | 29% | 35% |
| Yearly checkup (CDC PLACES) | 71% | 72% | 79% |
| Depression (CDC PLACES) | 19% | 22% | 23% |
| What stands out | San Lorenzo | CA |
|---|---|---|
| Fewer adults who have had cancer | 5.6% | 6.4% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
January nights average 43.5°, milder than in 96% of U.S. towns; July afternoons average 74.5°.
San Lorenzo has warm winters and cool summers, with very little rain. San Lorenzo’s January low is 44°F. Snow is almost unheard of.
NOAA U.S. Climate Normals, 1991–2020
0.6 miles of trail in 5 parks and preserves.
| San Lorenzo | California towns | U.S. towns | |
|---|---|---|---|
| Miles of trail per square mile | 0.2 miles per square mile | 1.0 | 0.4 |
| Conserved land | 4.2% | 4.3% | 4.3% |
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. San Lorenzo Park | 0.2 mi | 32 |
| 2. Hayward Regional Shoreline | — | 28 |
| 3. Mervin Morris Park | — | 14 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
The typical value, about $799K, is 9% below its June 2022 peak.
The typical San Lorenzo home is worth about $799,000, down 1.4% in a year, close to the California typical home.
| San Lorenzo | California towns | U.S. towns | |
|---|---|---|---|
| Median rent | $2,163 a month | $1,895 a month | $1,185 a month |
| Households that own their home | 67% | 64% | 73% |
Zillow Home Value Index · Redfin Data Center
19 within 15 miles of the center of San Lorenzo
About 7 of every 100 San Lorenzo residents are enrolled in college, about the same as California.
Where San Lorenzo’s working residents go each day. Line width shows the share.
Census LEHD 2023
Unincorporated community in California, United States
San Lorenzo (Spanish for "Saint Laurence") is a census-designated place (CDP) located in the historic Eden Township in the East Bay of the San Francisco Bay Area in Alameda County, California, United States. The population was 29,581 at the 2020 census. It is an unincorporated community, located at the banks of San Lorenzo Creek. It was originally named Squattersville in 1851, but later renamed to San Lorenzo. In 1944, under contract to the U.S. Navy, The David D. Bohannon Company began construction of San Lorenzo Village, which was one of the nation's first planned communities, with parcels designated for schools, churches, parks, and several retail centers. Bohannon's pioneering pre-cutti…
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
4 towns share a border with San Lorenzo.
It grades higher overall than all 4 graded towns on its borders; San Leandro (C−) comes closest.
| Town | CA rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| San Lorenzo | #239 | B− | C− | — | C+ | B+ |
| Hayward | #528 | C− | D | D | C+ | B+ |
| San Leandro | #485 | C− | D | D | B− | B+ |
| Ashland | #500 | C− | D | — | C+ | C+ |
| Cherryland | #506 | C− | C− | — | C | C+ |
San Lorenzo, Ashland and Cherryland report no FBI crime data of their own. Compare San Lorenzo with a neighbor →
Short answers, built from the data on this page.
San Lorenzo grades B− overall, better than 46% of U.S. towns and #239 of 841 in California. It grades B+ for health and C+ for schools. Hazard risk is its weak spot, with a D.
Yes. That is 5.9 years of the area's median household income ($136,027 across the San Francisco-Oakland-Fremont, CA metro area). Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades C−.
2 notable people were born here, including Pete Williams and Trooper Johnson.