Blog · September 24, 2026 · Utah
Summit County, Utah GIS Parcel Map Guide
Summit County’s free parcel viewer covers Park City condos and Kamas Valley ranch land in one map. Use it to check property lines and acreage and to search by address, owner or serial number before you pull the recorded plat.
Main page: Summit County, UT GIS & Parcel Viewer (official map link, Summit County facts and neighboring maps).
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Summit County, Utah, is two places at once: the resort world of Park City and the Snyderville Basin, and the ranch-and-reservoir country of the Kamas Valley, Coalville, and the western Uinta Mountains. Both kinds of land show up on the county’s official parcel viewer, an ArcGIS web application maintained by Summit County.
We list it on the Summit County row of our Utah directory. There is also a Summit County in Colorado and one in Ohio, so double-check the state; the national map makes that easy.
What the parcel viewer shows
The viewer draws parcel boundaries over aerial imagery and connects each parcel to its account details, including the parcel number, owner of record, and acreage. Like most ArcGIS web apps, it has a search box, identify tool, layer list, and measuring tools. The Summit County Assessor and Recorder maintain the records behind the map.
Search by address, owner or serial number
- Open the Summit County parcel viewer.
- Search by address, owner, or parcel/serial number.
- Click the parcel to read its details.
- Switch to aerial imagery to check terrain, trees, and access roads.
- Use the layer list to view jurisdiction and other reference layers.
- Save the parcel number with a screenshot.
Coalville is the seat; Park City is the draw
County government sits in Coalville, a small town in the Weber River valley along Interstate 80. Park City, the county’s largest city, is home to Park City Mountain and part of Deer Valley. The Snyderville Basin — Jeremy Ranch, Pinebrook, Kimball Junction, and surrounding neighborhoods — holds much of the county’s population outside city limits. East and south, Kamas, Oakley, Francis, Marion, Woodland, and Peoa sit in the Kamas Valley, gateway to the Mirror Lake Highway and the Uinta Mountains. Henefer and Echo lie to the north along I-80.
How to find property lines in Summit County
- Find the parcel in the viewer and note the serial or parcel number and the legal description.
- Pull the recorded plat, or the deed and any record of survey, from the Summit County Recorder.
- On mountain lots, use the plat’s bearings and distances with a GPS. Snow and scrub oak hide corner monuments much of the year.
- Hire a Utah licensed surveyor before you build, fence or buy acreage where the line matters.
Zoning and the two planning districts
Summit County divides unincorporated land-use planning between the Snyderville Basin and Eastern Summit County, each with its own planning commission and development code. Park City and the other towns handle zoning inside their limits. A parcel’s location relative to those boundaries shapes what can be built. Check the jurisdiction on the viewer, then read the right code. Our zoning overlays guide explains how to interpret zoning layers.
Mountain parcels: slopes, access, and wildfire
Many Summit County parcels sit on steep, wooded slopes. Aerial imagery shows tree cover and existing roads, but not grades or snow-season access. Private roads, gated subdivisions, and seasonal routes are common; check who maintains a road and whether access is recorded. Wildfire risk is part of mountain living, too. See road frontage and right-of-way for what to check on access.
Water rights come first in Utah
In Utah, water rights are managed by the Division of Water Rights, and a rural parcel’s buildability often depends on a water connection or a valid right for a well. Before buying acreage in eastern Summit County, find out whether the parcel is served by a water company or would need its own water right. The parcel viewer will not answer that; the state and the local water provider will.
Summit County acreage map: ranches, reservoirs and hunting ground
Eastern Summit County still has working ranches, hay meadows, and reservoir country around Rockport and Echo reservoirs. Buyers looking for recreational acreage use the map to find parcels near national forest land, check neighbors, and see how big a ranch really is. Large ownerships can span many parcels; look up each one. Our vacant land guide covers the process, and measuring acreage helps you check listings.
Summit County plat maps: recorded plats rather than a plat book
Nobody sells an owner-name plat book for Summit County. The free parcel viewer is the current ownership map, and recorded subdivision and condominium plats come from the Recorder. That matters in Park City, where a single building may be several condo plats. For recreational acreage in eastern Summit, remember that national forest and state land are mapped by their own agencies. Utah’s Division of Wildlife Resources runs a Walk-in Access program on some private land. On other private ground, start with the owner of record shown in the viewer. A Utah atlas and gazetteer is essential on Uinta forest roads.
Is the Summit County GIS map accurate?
The honest answer is that it depends on the parcel. Resort-area plats are usually mapped carefully. Old ranch descriptions, mining-era claims near Park City, and steep mountain lots are where drawn lines and the ground can part ways. Deeds, plats and easements are recorded with the Summit County Recorder, and the Assessor handles valuations. A Utah licensed land surveyor determines boundaries. For the Heber Valley next door, see our Wasatch County parcel map guide, read the Utah parcel map guide, or browse the Utah county GIS hub.
Parcel viewer not loading? Quick fixes
This is an ArcGIS web app. Slow loads usually come from a stale cache, so a hard refresh (Ctrl+F5 on Windows) often fixes it. Some property details need pop-ups turned on. If the link breaks, the Summit County row of our Utah directory carries the current address.
Who uses the viewer
Second-home buyers, ski-town investors, Park City homebuyers, ranchers, builders, land buyers in the Kamas Valley, surveyors, and title officers. Residents follow development proposals in the Snyderville Basin with it, too.
Frequently asked questions
Which Summit County is this guide about?
Summit County, Utah, home to Park City, Coalville and the Kamas Valley. Colorado and Ohio also have a Summit County, each with its own GIS.
Does the parcel viewer show water rights?
No. Utah water rights are managed by the state Division of Water Rights. Check them separately before you buy rural land.
Can I see property lines on Google Maps?
Not official ones. Use the county parcel viewer for the outline and the recorded plat for dimensions.
Open the official Summit County GIS viewer Summit County 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.