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Alamo vs Diablo

Next-door neighbors. The biggest differences: trails (9.9× in Alamo) and size (11.8× in Alamo).

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Alamo, CAHomes around $2.51MCalifornia · 14,488 people
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Diablo, CAHomes around $3.09MCalifornia · 1,232 people
Where each one shines

Two towns, two different strengths

What each town does better than most of its state (not better than each other). Tap one to see the page behind it.

The biggest differences

Where they differ most

The rows below where the towns are furthest apart, beyond the Census margin of error. The full table is further down.

★ What stands out · Monthly cost

A typical home costs $3,280 more a month in Diablo

A typical home in each town, bought with 20% down at 6.3% for 30 years, plus property tax at the town’s own rate and insurance. Change the numbers to fit you.

Alamo$14,210/mo
Typical home $2.51M (Zillow) · tax rate 0.50%+ · or rent about $3,501/mo · Housing →
Diablo$17,490/mo
Typical home $3.09M (Zillow) · tax rate 0.50%+ · Housing →

The difference: $3,280 a month, about $39,300 a year, between Diablo and Alamo.

Estimates, not a quote: your price, rate, tax bill and insurance will differ. Tax rate = the Census median tax bill over the median home value; “+” means the Census top-codes that town’s bill at $10,000, so its real rate is higher.

Where they are

Alamo and Diablo share a border

Straight-line miles between town centers.

AlamoDiabloAlamoDiablo
Alamo ↔ Diablo3.3 miles apart · They share a border
Report cards

Grades and rankings, side by side

Our letter grades for safety, schools and health, then every California ranking list both towns are on. A grade is one measure; read the page behind it.

Life in each

What daily life feels like in each

The weather, the land, the history and the people, row by row. None of it is a grade: more snow is a plus to a skier.

Seasons
AlamoDiablo
Snow a year1″1″
January low42°F42°F
July high83°F83°F
Growing season (days)282d282d
Hazard risk (U.S. pctl)86th89th
Outdoors & history
AlamoDiablo
Trails11 mi1 mi
Conserved land5.2%1.9%
Archive photos27—
Famous people born here5—
Community
AlamoDiablo
Posts this month00
Neighbors joined10

A dot marks the most on each row. Climate: NOAA 1991–2020 normals at the nearest station. Hazard risk: FEMA National Risk Index, expected yearly damage vs U.S. towns.

Everything, side by side

What matters to you?

Pick a few. Those rows jump to the top and the best fit on each is marked. There’s no overall score: what matters is up to you.

AlamoDiablo
People
Population 14,488Highest 1,232Lowest
Growth since 20102010 → 2020 census +5.1%Lowest CA: +6.1% +8.4%Highest CA: +6.1%
Median age 49.8±2.7Highest 31% above CA 43.3±9.8Lowest 14% above CA
Alamo and Diablo are within the Census margin of error here, so we can’t say which is really higher.
Kids under 18 21.1%±2.3Lowest CA: 22% 21.3%±11.3Highest CA: 22%
Diablo and Alamo are within the Census margin of error here, so we can’t say which is really higher.
Age 65+ 25%±1.1Highest CA: 15.7% 19.2%±6.6Lowest CA: 15.7%
Alamo and Diablo are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+ 77.5%Highest CA: 37.1% 72.3%Lowest CA: 37.1%
Enrolled in collegeshare of residents 5%±1.8Highest CA: 7.6% 2.5%±3.5Lowest CA: 7.6%
Alamo and Diablo are within the Census margin of error here, so we can’t say which is really higher.
Cost of living
Household incomemedian $250,001Highest 152% above CA $248,150±$178kLowest 150% above CA
Home valuemedian, owner-occupied $2,000,001 172% above CA $2,000,001 172% above CA
Rentmedian gross, monthly $3,501 72% above CA —
Property taxmedian, yearly $10,000+ at least 95% above CA $10,000+ at least 95% above CA
Renters paying 30%+of income on rent 61.6%±31.6 CA: 55.3% —
Below poverty line 2.1%Lowest CA: 12% 13.2%Highest CA: 12%
Housing
Homeownersof occupied homes 91.8%Lowest CA: 55.9% 100%Highest CA: 55.9%
Typical home builtmedian year 1978Lowest 2 yrs newer than CA 1980Highest 4 yrs newer than CA
Getting to work
Average commuteone way 29 minLowest about the CA average 33 minHighest 14% above CA
Work from home 31.5%±4.6Highest CA: 17.2% 5.2%±6.2Lowest CA: 17.2%
Work in townworking residents 4%Highest 0.4%Lowest
Typical commute distancemedian, straight-line 17.8 miLowest 23.8 miHighest
Jobs per working residentover 1.5 = a job hub 0.57Highest 0.48Lowest
Top workplaceoutside town San Francisco (12%)San Francisco (9%)
Between these townsresidents who work in the others Few work in DiabloFew work in Alamo
Outdoors
Conserved landshare of the town 5.2%Highest 1.9%Lowest
Trailsmapped miles 10.9 miHighest 1.1 miLowest
Trail densitymiles per sq mi 1.1 miHighest 0.8 miLowest
Parks & preservesnamed on the map 5Highest 0Lowest
Street connectivityintersections per sq mi, a walkability measure 51.6Highest 32.4Lowest
Schools
Public school scoresrank in state, math + reading #553 of 574 in CA—
School district San Ramon Valley Unified—
High school in town None in town—
California average“±” Census margin of errorACS 2020–2024
Deciding?

Ask the people who live there

The numbers stop at the town line. Neighbors can tell you about the commute at 7am, the schools, the winters and the feel of the place.

Alamo neighborsTown Square →
T Weaver · 6d

Alamo Housing Costs

1 neighbor in Alamo can answer.

Diablo neighborsTown Square →

Your question goes to Diablo’s Town Square.

Add a town

Set another town beside Alamo and Diablo

One tap adds it. Up to 4 towns at once.

Bordering Alamo

Towns like Alamo

Sources: U.S. Census Bureau American Community Survey 5-year estimates, 2010 & 2020 censuses, LEHD commute flows; Zillow Home Value Index; NCES Common Core of Data; FBI crime reporting; CDC PLACES; FEMA National Risk Index; NOAA U.S. Climate Normals 1991–2020; USGS PAD-US and OpenStreetMap. “±” is the Census margin of error; differences inside it are never called. Property tax is top-coded by the Census at $10,000+. There is no overall score: which town is better depends on what matters to you.

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