Featured local agent
Scott Brown — eXp Realty
Licensed in California (DRE #01956840). Call or text for a direct answer on local listings, pricing, or new construction.
Call/text (707) 474-8855Alto, CA · Census-designated place
Alto, California houses and real estate market data.
Houses in Alto, CA (Marin County) — market data for Alto houses and the whole local market.
Census-designated place · Census GEOID 0601416
FEATURED LISTING: WATERFRONT LAKE HOME FOR SALE
Clearlake Oaks Canal-Front Oasis
$425,000 • 3 Beds • 2 Baths • 1,204 Sq Ft
554 Keys, Clearlake Oaks, CA 95423
Luxury Living Lake Lifestyle – Deep Water Access to Clear Lake: PAID-OFF SOLAR • 10-Ft Concrete Seawall • Double Boat Lifts & Private Dock • Hot Tub • Mini-Split HVAC • Close to SF Bay / Wine Country • Cleanest Air in America (Lake County CA) • Spacious Patio and Deck • Open Floor Plan • RV/Boat Parking • Want the Boats? • Make Offer ASAP This Lake Home For Sale in California won't last!
*Listed by Scott Brown, eXp Realty of California, Inc. DRE #01956840. Inquiries delivered directly to listing agent. Search.USAHouses.com*
Contact Agent Direct:
Scott Brown - eXp Realty
Scott@USAHouses.com
Call/Text (707) 474-8855
Click Anywhere on Ad for More Info / Listing Page
Alto, CA is a Census-designated place in Marin County, California — this guide covers houses in Alto and the whole local market: resale homes, condos, land, and new construction.
Info from government sites and builders may have provided source info.
Open map pin ↗ · 37.905581, -122.518718
At a glance
Alto market snapshot
Place type
Census-designated place
County
Marin County
Map pin
37.905581, -122.518718
Census GEOID
0601416
Land area
0.13 sq mi
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
Local resources
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What makes Alto different
Census-designated place
The U.S. Census Bureau lists Alto as a Census-designated place in Marin County, California — a settled community that is not an incorporated city, town, or village. This page uses the same /california/alto/ guide pattern as incorporated places.
Nearby
Places around Alto
County guide: Marin County — cities, market context, and local resources for the county that includes Alto.
USAHouses.com also lists other Marin County places in California. Each linked guide uses the same Census place geography.
Nearby communities include Strawberry, Mill Valley, Corte Madera, Tamalpais-Homestead Valley, Marin City, Larkspur, Kentfield, Tiburon.
Strawberry market data
Nearby city · ~1.1 mi
Mill Valley market data
Nearby city · ~1.3 mi
Corte Madera market data
Nearby city · ~1.9 mi
Tamalpais-Homestead Valley market data
Nearby city · ~2.1 mi
Marin City market data
Nearby city · ~2.4 mi
Larkspur market data
Nearby city · ~2.5 mi
Kentfield market data
Nearby city · ~3.0 mi
Tiburon market data
Nearby city · ~3.3 mi
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Common questions
Alto FAQ
What kind of place is Alto, CA?
The U.S. Census Bureau lists Alto as a Census-designated place in Marin County, California — a settled community that is not an incorporated city, town, or village.
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🔥 Paid Advertisement: NEW HOME FOR SALE BY OWNER (Builder)
Northern California Luxury Home
3+ Beds • 4 Baths • 2,964 Sq Ft
17867 Deer Hill Rd, Hidden Valley Lake, CA 95467
Brand New 2026 Construction with LAKE VIEWS:
SPACIOUS LOT • Open Floor plan • Chef's kitchen • Interior aquarium • Dual fireplaces • Solar • EV-ready 3-car garage • Waterfall fountain • Great Views • Gated & Guarded Community • Golf Course • Driving Range • Community Pool • Private Lake
📩 Contact Owner Direct
Michael@Fonestream.net
*USA Houses LLC provides paid advertising space only. Property is listed with an outside MLS brokerage. Inquiries are delivered directly to the advertiser.*