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GIS Data

Setting the standard for geographic accuracy.

We standardize and update our data and realign our GIS parcel layers constantly using our own in-house staff of Mappers and GIS Specialists. This means our files are an accurate reflection of the latest parcel boundaries and assessor information, including ownership, assessments, sales and property characteristics.

ParcelQuest’s datasets, web services and maps are harmonized so your operations run more efficiently, saving you time and money.

Enhanced GIS Parcel Layers

California GIS Layers, Current & Standardized

Our layers include every parcel in all 58 CA counties, standardized with the correct projection and alignment. If you have tried to maintain a multi-county parcel data set and found the process to be challenging, give us a call. We’ll give you the benefit of a statewide standard.

ParcelQuest screenshot showing two different parcels and their quick view parcel data

Custom Clipping Service

Nip inefficiency in the bud.

Need a parcel layer that covers just your area of interest? Our GIS clipping service saves you time and effort. Let us know what you need and we’ll give you a shape file containing every parcel within that boundary, joined with the corresponding assessor data you want, including ownership, address or other information.

Whether it’s in a city, across multiple counties, within a certain jurisdiction, along a transmission line – whatever fits your needs, we’ll create a custom GIS file joined with county assessor data.

ParcelQuest Gateway for ArcGIS

ParcelQuest delivers parcel data directly into the Esri Ecosystem with the PQ Gateway feature service. That means access to the most accurate, authoritative, continuously updated parcel and property ownership data as soon as you need it, exactly where it’s needed. Call us for a custom quote and start working faster and more accurately today.

Esri Partner Network badge with a computer screen showing ParcelQuest streaming data into ArcGIS

Other Features

Additional Resources

  • saving-time-and-money-with-parcelquest-gateway-510x370-2025

    Saving Time and Money with ParcelQuest Gateway

    Sure. You could spend countless hours gathering ownership records, cleaning data, and integrating it into your workflow. But why?

    Read More >

  • A screenshot of a ParcelQuest map overlaid with all of the options for searching for California parcels

    Unifying California Parcel Data Isn’t Easy. That’s Why We Did It.

    We love a good puzzle, and building an authoritative parcel database is exactly what gets our blood pumping.

    Read More >

  • A screenshot of the ParcelQuest interface showing some of the available reports that can be generated, overlaid over aerial photos of California fields

    How Much Data Do You Need?

    We exist to give you exactly what you’re looking for, without ever bogging you down with extras you don’t need.

    Read More >

  • potential-of-arcgis_510x370-2025

    Unlocking the Potential of ArcGIS with ParcelQuest

    We're not sure about skinning cats, but we know there are several ways to import our parcel data into ArcGIS.

    Read More >

  • Parcel, Topography, Fire Hazard Severity, and Seismic layers in ParcelQuest software

    Raising a Glass to California’s GIS Professionals

    ParcelQuest helps California's GIS professionals change the world. Or, at least, have a better day, which is basically the same.

    Read More >

  • Tablet screen showing the ParcelQuest property search interface with a map and property characteristics

    Mapping the Future of GIS

    What do you get when you pack three California GIS geniuses in a room? ParcelQuest! (And a great conversation.)

    Read More >

  • GIS mapping software

    We Love City GIS Experts

    In our relationship with local agencies, cadastral maps are our love language.

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  • Bulk Data Export

    Did Somebody Order Bulk Data?

    Need a one-time download of parcel data for a county or the whole state? We’ve got you covered.

    Read More >

  • screenshot from ParcelQuest software

    If It Ain’t Broke, Make It Better

    We’re the best parcel data resource in California, but we’re still always working to be better.

    Read More >

  • ParcelQuest screenshot showing zoning features

    Who Needs Parcel Zoning Information?

    If you’ve ever touched a parcel, you probably need to know something about it. PQ has all the answers.

    Read More >

  • Screenshot from ParcelQuest Zoning software

    Get Zoning Data for Thousands of Parcels Without Breaking a Sweat

    Sure, you could match thousands of zoning codes to their respective parcels by hand. But why?

    Read More >

  • Streaming-Plugins-Gateway

    The Magic of All Your Data Living in One Place

    Save yourself the headache of duplicating your efforts by working right in ArcGIS.

    Read More >

  • 5-Things-about-ESRI-2025

    Five Things You Didn’t Know You Could Do in ArcGIS

    You use it every day, but are you making your Esri software work for you?

    Read More >

  • Why-Gateway-is-a-Bette-2025

    Why Gateway is the Superior Parcel Feature Service

    You could spend your day updating parcel data in ArcGIS. Or you could just use Gateway.

    Read More >

  • Parcels, FEMA Flood and Fire Hazard Severity layers in ParcelQuest Gateway

    Layers Upon Layers of Map Data at Your Fingertips

    How we define bliss: cross-referencing multiple data points in a custom-defined map shapes.

    Read More >

  • AgCom-Thumb

    Agricultural & Commercial Appraisers Need Robust Comp Tools

    ParcelQuest gives you more options for finding exactly what you’re looking for.

    Read More >

  • ESRI-Thumb

    How ParcelQuest Gateway Can Save You Valuable Time

    Your projects are time-sensitive. Your parcel data should be, too.

    Read More >

  • Layers-Thumb

    I’m a Surveyor or Civil Engineer — What Can ParcelQuest Do For Me?

    The information you need for your projects, faster and better than ever

    Read More >

  • Cadastral Mapping

    Unparalleled Cadastral Mapping Expertise

    In-house land mapping that blows other data outta the water.

    Read More >

We didn’t put California GIS on the map for nothing.

Let us make your job a lot easier.