Blog · October 14, 2026 · California
Pacifica GIS Map: looking up parcels
Parcel data for Pacifica comes from the county, and the viewer is free.
Main page: San Mateo County, CA GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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For any lot around Millbrae, the Pacifica GIS map lays out parcel boundaries plus basic tax data. This Pacifica guide covers: which viewer to open, how to search it, and what to double-check with records.
Opening the Pacifica GIS map
In most places the county maintains the parcel layer, so for Pacifica the go-to is the San Mateo County parcel viewer.
Opening the official parcel viewer
Go first to the San Mateo County parcel viewer; it covers every assessed parcel from Colma to Burlingame. If you're looking near Colma, put in a street address, an owner's name or a parcel number, and the matching parcel lights up. For a tract near Millbrae, the record panel normally shows the owner of record, assessed acreage, a parcel ID and sometimes recent sales.
Using it on a phone
The parcel map usually runs in a mobile browser, useful out on a road near Daly City, but coverage can be spotty out of town. A saved image of the lot near San Bruno and its lines helps when you meet an owner or agent.
How land is described here
California is laid out under the Public Land Survey System, which means a tract near Burlingame is described by section, township and range. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though corrections make some sections near San Bruno odd-sized. Keep the legal description for land near San Bruno for any title or survey request.
Pacifica, CA: the basics
Pacifica sits in San Mateo County, California, and the county assessor maps its lots. Closer to Daly City, the municipality handles things like zoning, permits and utilities for lots inside the boundary, while the county keeps the tax map. Land beyond the town limits near Colma often follows county rules instead.
When the map won't load
When the map won't open around San Bruno, switch browsers or turn off pop-up blockers; the Platbookmapper county page tracks the current link.
What the map can't tell you
The acreage figure is a tax-roll number; only a licensed surveyor establishes the real lines on land around Daly City. Closer to Colma, records update in batches, so a deed recorded last month might lag behind.
Next door to San Mateo County
San Mateo County meets Alameda County, San Francisco County, Santa Clara County, and Santa Cruz County, and each of those keeps its own parcel map. Ground near Colma that runs to the line can show up across two assessors' files, so look at the adjacent map too. If the land is near San Bruno, the Platbookmapper state page links every neighboring county map across California.
Backing up the map with records
The map is an index, not the title: deeds, subdivision plats and easements covering ground around Burlingame are kept by the County Recorder. Inherited tracts around Burlingame may trace back through several deeds, and a title company can sort it out on a real sale.
Searching the map
By address works best for lots in Pacifica; owner names are usually entered last name first. For land near San Bruno, searching by parcel number never misses, and it carries over to every office in the county.
Printing and saving
Save a screenshot of the lot near Millbrae and its record panel, which helps later when you ask the assessor or a title company.
Layers worth turning on
Closer to South San Francisco, look in the layer list for city limits, flood hazard, zoning or soils; availability varies.
Reading a parcel record
If sale dates appear, they help gauge the market in the city give a rough idea of values; an appraiser is the real authority around Foster City.
Getting your bearings
Redwood City is the county seat, home to the main records offices. You'll also find San Bruno, Millbrae, Colma, and Daly City. Around 726,353 people live in San Mateo County (Census Bureau estimate, 2023) across some 449 square miles. Landmarks such as Don Edwards San Francisco Bay National Wildlife Refuge are easy to spot when you zoom out from Colma.
Who handles what
If the acreage or value on a parcel near San Bruno looks off go to the County Assessor, since that office keeps the assessment data. Building or septic questions for a lot near San Bruno are for the local planning and health departments, town or county, depending on location.
Pacifica: common questions
Is there a separate city GIS for Pacifica?
Short answer: Pacifica may publish zoning or utility maps separately, while parcel data usually comes from the county.
Can I search by owner name in Pacifica?
It depends, but the parcel record for a lot near South San Francisco lists the owner of record, or search by address instead.
What layers does the parcel viewer have near Daly City?
Aerials near Burlingame are usually available as a basemap; open the layer list to see what's there.
Are parcel lines on the map exact for land near Colma?
Good question; lines near Daly City can be off by several feet or more, so a licensed surveyor should mark corners.
How is land described in California deeds for land near Daly City?
If the land is near San Bruno, deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official San Mateo County, CA parcel map See it in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.