138 years in pictures
Census counts: 15,692 in 1970, 34,924 in 2020. The archive holds 8 old photos and papers going back to 1941 and 8 maps from 1894 on.
1 place on the National Register of Historic Places.
- 1888San Dimas is settled
Each edition grades its towns against each other only.

San Dimas's standout: it has 44 miles of trail and 36% conserved land. Overall it grades C+, 273rd among California's 841 graded towns. Its schools rank ahead of 86% of California towns and residents are healthier than 78% of U.S. towns on CDC estimates. Its weakest subject is cost of living: the typical home is worth about $902K, 9.4 years of the Los Angeles metro’s $96K median household income. 36% of the land in San Dimas is conserved, against 4.2% in California’s towns and 4.3% across U.S. towns. San Dimas is home to Life Pacific University.
Where San Dimas beats most towns, and one thing worth knowing.
35.9% of the town is conserved land, across 14 parks and preserves.
Each subject compared with towns across the country (schools within California), ordered by how far San Dimas is from typical.
How TownRatings grades towns →
Census counts: 15,692 in 1970, 34,924 in 2020. The archive holds 8 old photos and papers going back to 1941 and 8 maps from 1894 on.
1 place on the National Register of Historic Places.
Museums, parks, gardens and other places to visit around San Dimas. Close and well known come first.
Big draw22 mi Theme parkDisneyland17.3M visitors a year
Big draw32 mi Stadium & arenaSoFi Stadium
Big draw31 mi LandmarkHollywood Walk of Fame10.0M visitors a year
Big draw28 mi MuseumLucas Museum of Narrative Art
Big draw28 mi Stadium & arenaLos Angeles Memorial Coliseum
Big draw21 mi Theme parkKnott's Berry Farm4.5M visitors a yearDisneyland: HarshLight from San Jose, CA, USA, CC BY 2.0 · SoFi Stadium: Thank You (21 Millions+) views, CC BY 2.0 · Hollywood Walk of Fame: BenSherman, Public domain · Lucas Museum of Narrative Art: Kriddl, CC0 · Los Angeles Memorial Coliseum: CanonStarGal, CC BY-SA 4.0 · Knott's Berry Farm: Phydend at English Wikipedia, Public domain
Who provides power, water and the rest in San Dimas, and how to reach them.
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 Dimas.
San Dimas fares better on crime within California than nationally, keeps more of its land conserved than most of California and has milder winter nights than nearly all U.S. towns.
Its 3,526 conserved acres are a larger share of the town than in 95% of California towns.
44 miles of trail in 14 parks and preserves. San Dimas’ trail density is 2.8 miles per square mile, where California’s towns sit at 1.0 and U.S. towns at 0.4. The biggest place to walk is Frank G. Bonelli Regional Park, 1,784 acres with 25.3 miles of trail.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Frank G. Bonelli Regional Park | 25.3 mi | 1,784 |
| 2. San Gabriel Mountains National Monument | 3.7 mi | 1,204 |
| 3. Horsethief Canyon Park | 2.5 mi | 108 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Its A for schools comes with a D− for cost of living: the typical home is worth about $902K.
Its public schools are run by the Bonita Unified school district. Two of its 16 schools are below, each with why it’s listed.
| School | Level | Students | Letter |
|---|---|---|---|
| Lone Hill MiddleLargest public middle schoolGrades 6–8 | Grades 6–8 | 870 | – |
| San Dimas HighLargest public high schoolGrades 9–12 | Grades 9–12 | 1,235 | A+ |
NCES · EDFacts · graded within CA on state tests and graduation
Expected storm and flood damage is higher than in 86% of U.S. communities. Since 1980, 4 flood insurance claims have been paid out in San Dimas.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
24% of San Dimas adults have obesity. San Dimas beats the California average on 16 of 32 CDC measures and trails it on 2. 38% of San Dimas adults feel lonely.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| Obesity (CDC PLACES) | 24% | 29% | 35% |
| Feel lonely (CDC PLACES) | 38% | 36% | 33% |
| Frequent mental distress (CDC PLACES) | 15% | 17% | 17% |
| Depression (CDC PLACES) | 19% | 22% | 23% |
| What stands out | San Dimas | CA |
|---|---|---|
| Fewer older adults who have lost all their teeth | 6.9% | 10.6% |
| Fewer uninsured adults | 7.6% | 10.6% |
| More adults who have had cancer | 7.7% | 6.4% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
At 31.9 crimes per 1,000 residents a year, it reports more crime than 56% of California’s graded towns. Reported crimes fell from 900 to 618 over the last three FBI years, a drop beyond ordinary year-to-year swings.
San Dimas’ property crime rate is 16.9 per 1,000 residents.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| Property crimes per 1,000 (2025) | 16.9 per 1,000 residents | 13.3 | 9.9 |
| Violent crimes per 1,000 (2025) | 1.9 per 1,000 residents | 2.9 | 1.6 |
FBI crime data, 2025 · crimes reported to police
January nights average 43.3°, milder than in 96% of U.S. towns; July afternoons average 90.3°.
San Dimas has warm winters and warm summers, with very little rain. The January low in San Dimas is 43°F. Snow is almost unheard of.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| January low | 43°F | 40°F | 22°F |
| July high | 90°F | 89°F | 85°F |
NOAA U.S. Climate Normals, 1991–2020
The typical San Dimas home is worth about $902,000, about the same as a year ago, 18% above the California typical home.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| Median rent | $2,278 a month | $1,895 a month | $1,185 a month |
| Households that own their home | 72% | 64% | 73% |
Zillow Home Value Index · Redfin Data Center
Most working residents leave San Dimas for work: only 7% work in town. 17% of workers work from home in San Dimas. Since 2013, San Dimas has added 986 jobs, to 17,975 in 2023.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 32 minutes | 28 minutes | 25 minutes |
| Work from home | 17% | 14% | 11% |
| Median household income | $105,000 | $95,000 | $80,000 |
Census LEHD 2023 · ACS
People 65 and older are 20% of residents (16% statewide); adults 18 to 34 are 20% of residents (24% statewide). San Dimas has lost 5.5% of its people since 2020, down to 32,978 in the Census Bureau’s 2025 estimate. 40% of adults 25 and older have a bachelor’s degree or more, vs 37% across California.
| San Dimas | California towns | U.S. towns | |
|---|---|---|---|
| Bachelor’s degree or more, 25+ | 40% | 29% | 29% |
| Median age | 43.3 years | 39 years | 40.5 years |
| Aged 65 or older | 20% | 16% | 18% |
| Under 18 | 20% | 22% | 22% |
52% women, 48% men
About 93 men for every 100 women (the survey’s margin: ±1.8 points). Across California, 50.1% of residents are women.
| San Dimas | CA | U.S. | |
|---|---|---|---|
| Under 10 | 11.1% | 11.4% | 11.6% |
| 10 to 17 | 9% | 10.5% | 10.3% |
| 18 to 24 | 7.2% | 9.1% | 9.1% |
| 25 to 34 | 12.6% | 14.8% | 13.7% |
| 35 to 44 | 11.6% | 13.9% | 13.2% |
| 45 to 54 | 14% | 12.5% | 12.2% |
| 55 to 64 | 14.1% | 12.1% | 12.7% |
| 65 to 74 | 12.2% | 9.2% | 10.2% |
| 75 and older | 8.2% | 6.5% | 7% |
| No diploma | 7.3% | 15.3% | 10.4% |
| High school | 20.3% | 20.5% | 26% |
| Some college | 24.4% | 19.3% | 19.1% |
| Associate’s | 7.6% | 7.9% | 8.8% |
| Bachelor’s | 22.7% | 22.7% | 21.6% |
| Graduate | 17.7% | 14.4% | 14.1% |
Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates
23 within 15 miles of the center of San Dimas
About 7 of every 100 San Dimas residents are enrolled in college, about the same as California.
17 notable people were born in San Dimas.
City in California, United States
San Dimas (Spanish for "Saint Dismas") is a city in the San Gabriel Valley of Los Angeles County, California, United States. At the 2020 census, its population was 34,924. It takes its name from San Dimas Canyon in the San Gabriel Mountains, north of the city. San Dimas is bounded by the San Gabriel Mountains to the north, La Verne and Pomona to the east, Walnut and the unincorporated community of Ramona to the south, and Glendora and Covina to the west. West San Dimas is an enclave within the city.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
5 towns share a border with San Dimas.
| Town | CA rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| San Dimas | #273 | C+ | D− | C | A | A− |
| La Verne | #237 | B− | D− | C | A | A− |
| Pomona | #671 | D | D | D | C+ | C+ |
| Covina | #339 | C | D− | C | B+ | B+ |
| Glendora | #191 | B− | D− | C | A− | A− |
| Charter Oak | #215 | B− | D | — | B+ | B+ |
Charter Oak reports no FBI crime data of its own. Compare San Dimas with a neighbor →
Short answers, built from the data on this page.
San Dimas grades C+ overall, better than 41% of U.S. towns and #273 of 841 in California. It grades A− for health, C for safety and A for schools. Cost of living is its weak spot, with a D−.
Yes. Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades D−.
17 notable people were born here, including Alex Morgan and Adam Wylie.