Population
34,099 residents
Census ACS 2023 - California
City profile · California · Census ACS 2023
Population, income, housing, safety, climate and schools for San Dimas - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.
San Dimas - the verdict
Nationally, San Dimas sits in the 81st percentile for household income and the 21st percentile for safety among US cities with a population of 1,000 or more. Source: Census ACS + FBI UCR.
Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.
California's San Dimas is a small city, with 34,099 residents per the latest Census Bureau ACS figures. Median household income here is $105,833 per year, placing it in the top quartile of U.S. cities for household income, with a poverty rate of 6.2%. Home values in San Dimas run a median of $756,200, and the median resident age is 42.8 years. Educational attainment runs 40.3% of adults with a bachelor's degree or higher. Separately, 59.6% of working-age residents are in the labor force.
The Census Building Permit Survey recorded 37 residential units authorized here in 2024 (Building Boom), up 85% from five years earlier. Crime here tracks close to the national norm: FBI UCR reporting places total crime at 2564.5 incidents per 100,000 residents, near the national average (voluntary agency reporting, reflects reporting activity, not a definitive danger score).
California carries a cost-of-living premium: BEA Regional Price Parities 2024 puts California at 110.7 on a 100-equals-national-average scale (Well Above Average). A typical two-bedroom carries a HUD Fair Market Rent of $3,236 per month statewide. Statewide, average monthly utility bills in California run around $275, per EIA 2023 residential energy data. On FEMA's National Risk Index, this area rates 99.8 out of 100 for natural-hazard exposure (Very High).
Population
34,099 residents
Census ACS 2023 - California
Median Household Income
$105,833 /yr
Poverty 6.2%
Cost of Living Index (state)
110.7 (US=100)
Well Above Average - BEA RPP 2024, California average
Here's how San Dimas stacks up against the full field of US cities (population 1,000+), computed live from Census and FBI data.
"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.
Zoom in to just California and the picture shifts: San Dimas ranks #318 of 441 California cities by lowest crime rate, a different read than the national percentile above.
For each metric we count every US city with population 1,000+ and a non-null value, then compute what share of them fall below San Dimas's value: round(cities-below ÷ total × 100). Safety is inverted (percentile = share of cities with a higher crime rate) so a higher number always means safer. The in-state rank narrows that same crime-rate comparison to only the cities PlainCities tracks in California, breaking ties alphabetically. See the methodology page for the full source-to-figure lineage.
81st percentile nationally for median household income · 21st percentile for safety (lower crime rate). Source: Census ACS 2023 / FBI UCR 2023.
Income, affordability, and safety percentile
How San Dimas's home value compares nationally
Median home value vs. every US city (population 1,000+)
$756,200 6th percentile more affordable than 6% of 15,600 US cities
Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau ACS 5-Year Estimates · 2023
Census ACS S1501, educational attainment
Census ACS S1701, poverty status
Census ACS S2301, share of working-age residents in the labor force
Reflects incidents reported to the FBI's Uniform Crime Reporting program — agency participation is voluntary and reporting completeness varies by jurisdiction and year, so this reflects reporting activity, not a definitive danger score. Not adjusted for tourism, commuter, or daytime population.
Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025
Census Bureau Building Permits Survey (BPS) - annual residential permits authorized
| Year | Total |
|---|---|
| 2019 | 20 |
| 2020 | 18 |
| 2021 | 18 |
| 2022 | 35 |
| 2023 | 30 |
| 2024 | 37 |
Permit volume increased 85% from 2019 to 2024.
How workers travel to work, Census ACS 2023
Based on 16,057 workers 16 and over.
State-average estimates for California - EIA 2023 residential energy data
Estimates reflect California state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.
Cost of living is a California state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county San Dimas sits in
Population-matched peers from other states, closest to San Dimas's 34,099 residents (Census ACS 5-Year 2023).
Median-household-income-matched peers from other states, closest to San Dimas's $105,833 (Census ACS 5-Year 2023, table B19013).
City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.
Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).
| City | Population | Median Household Income |
|---|---|---|
| San Dimas (this city) | 34,099 | $105,833 |
| Westmont | 34,291 | $47,899 |
| Pleasant Hill | 34,335 | $144,513 |
| Manhattan Beach | 34,584 | $193,904 |
34,099 people live in San Dimas, CA according to U.S. Census Bureau ACS 2023 estimates.
Median annual household income in San Dimas runs $105,833, based on Census ACS 2023 data.
BEA does not publish a city-level cost-of-living figure for San Dimas; the closest available measure is the California state average, a cost of living index of 110.7 (U.S. average = 100), rated "Well Above Average" based on BEA Regional Price Parities 2024 data. Costs within California vary by metro area.
San Dimas has a total crime rate of 2564.5 per 100,000 residents, which is near the national average. This reflects incidents reported to the FBI UCR program, not a definitive safety score -- agency reporting is voluntary and completeness varies by jurisdiction.
The median home value in San Dimas is $756,200, according to Census ACS 2023 estimates.
Source: U.S. Census Bureau ACS 5-Year 2023, FBI UCR, NCES CCD, Census BPS 2024, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.
Read our methodology - how this data is sourced, computed, and verified.
Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.
Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.