Living in San Mateo

37.5630° N · 122.3255° W · San Mateo, California

San Mateo is four miles wide.

From the bayshore on its east to the reservoir on its western rim, San Mateo has 560 feet of climb. The fog rolls west to east every morning, thinning as it goes. Head the same direction on the ground and the lots get smaller, the streets get straighter, and the train stations get closer.

San Mateo seen from the hills — houses on the ridge, the city below, and the marine layer lying flat over the flats and the Bay
From the hills: ridge, slope, and the fog stopping where the ground does.

Section · hills to Bay

Elevation cross section of San Mateo, west to east: the Crystal Springs watershed at 560 feet falls to San Francisco Bay at sea level in roughly four miles. 500 ft 60 ft sea level I-280 past the reservoir ALAMEDA DE LAS PULGAS the old ridge road EL CAMINO · CALTRAIN road and rail together US-101 along the Bay edge BAY TRAIL on the levee San Mateo Highlands — 310 ft Laurelwood & Sugarloaf — 330 ft Baywood — 130 ft Aragon — 90 ft North Central — 38 ft Downtown — 28 ft Hillsdale — 22 ft Bay Meadows — 14 ft Sunnybrae — 11 ft Shoreview & Fiesta Gardens — 8 ft Coyote Point & North Shoreview — 5 ft
The hills Four miles, 560 feet, eleven neighborhoods. Vertical scale exaggerated below 60 ft so the flats stay readable. The Bay Drag toward the Bay →

The map

11 neighborhoods, 3 Caltrain platforms. Click on the map for its elevation, nearest station, and a dedicated neighborhood webpage.

Circles are neighborhoods, squares are Caltrain platforms.

Everything runs parallel to the Bay: Highway 280 in the hills, El Camino Real and the train tracks in the middle, Highway 101 on the flats. Highway 92 is the one diagonal, running from Half Moon Bay on the coast, through the gap in the hills, and across the 7-mile San Mateo-Hayward Bridge.

Where people live

11 neighborhoods, sorted by descending elevation

Watershed

290–560 ft

Public land and the drinking water for the entire peninsula.

  • No residents, it's the city's water supply and restrictive nature access.

The hills

180–460 ft

Curved streets, oaks, deer, first place the fog lands.

The slope

60–180 ft

Big lots and old trees between the ridge road and the rail line.

The corridor

20–60 ft

El Camino, the Caltrain platforms, the most walkable ground in the city.

The flats

6–20 ft

Postwar grid, newer blocks, the widest streets in the city.

The shoreline

0–6 ft

Levees, lagoons, salt marsh, wind that shows up at two o'clock.

A live oak spreading over a wide, straight residential street, with a line of street trees receding toward the Bay
A residential street on the slope running downhill to a stop sign, under mature plane trees with evening sun catching the tops of them, cars parked along both curbs

The flats The hills

Same city, three miles and three hundred feet apart. Down there the streets run straight and the trees do the shading; up here the road bends and the canopy closes over it.

The hills west of San Mateo at dusk, house lights scattered across the ridge above rooftops and palm trees
The same ridge after sunset, from lower down. Those scattered lights are the top band — first to get the fog, first to get the view.

How the place works

8 guides to the first year

Which train stops where. Why one street is sunny and the next isn't. Where the Saturday morning crowd goes. Each one leads with the decision, not the history.

Field notes

What changed recently

All field notes