Blog · October 14, 2026 · Wyoming
Casper GIS Map: looking up parcels
Parcel data for Casper comes from the county, and the viewer is free.
Main page: Natrona County, WY GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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Curious who owns the lot next to you in Casper? Pulling up the Casper GIS map gets you there fast, with no account needed. What this city guide covers: which viewer to open, how to search it, and the limits worth knowing, at least around Evansville.
Opening the Casper GIS map
With a lot near Evansville, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
Getting to the right map
Go first to the Natrona County ArcGIS parcel map; it maps every tax parcel from Bar Nunn to Mills. If you're looking near Bar Nunn, put in a street address, an owner's name or a parcel number, and the viewer zooms to the match. For property near Edgerton, the parcel card typically gives the owner of record, acreage on the tax roll, a parcel ID and in many cases the last transfer.
Casper, WY: the basics
The city lies within Natrona County, Wyoming, which means parcel data comes from the county for land near Edgerton. The city is also the county seat, which puts the County Clerk close by, especially near Midwest. For acreage around Evansville, city or town hall handles matters such as zoning, permits and utilities inside its limits, while the county keeps the tax map. Acreage past the town limits near Mills generally follows county rules rather than the town's.
Finding the right lot
By address works best for lots in Casper; for owner searches, try last name first. For land near Midwest, searching by parcel number never misses, and you'll find it on tax statements.
Aerials, labels and overlays
An aerial view around Evansville to compare lines with fences and driveways.
A quick look at the area
Casper serves as the county seat, home to the main records offices. You'll also find Mills, Evansville, Bar Nunn, and Edgerton, each with its own cluster of lots. About 79,941 people call Natrona County home (Census Bureau estimate, 2023) spread over some 5,341 square miles. Features like Medicine Bow National Forest make handy reference points on the map near Mills.
Troubleshooting the viewer
If the viewer stalls on a phone near Midwest, switch browsers or turn off pop-up blockers; the Platbookmapper county page tracks the current link.
Saving what you find
Print or screenshot the parcel near Evansville with its ID visible, so you have it when calling an office.
Who handles what
Recorded documents for a parcel near Bar Nunn come from the County Clerk, often with an online index. Zoning, permits and septic questions near Mills go to planning, building or health offices, depending on whether the land is inside town limits.
Owner, value and acreage
Recent sales on nearby lots in Casper are a useful starting point; they're not an appraisal.
Neighboring parcel maps
Natrona County touches Carbon County, Converse County, Fremont County, Johnson County, and Washakie County; every one of them runs a separate parcel map. Acreage along the edge near Evansville can be split across two assessors' files, so check the neighboring map too. Our state page lists every neighboring county map across Wyoming.
Backing up the map with records
For anything that matters, request the recorded deed from the County Clerk; the parcel map near Midwest only summarizes it. For property near Mills, have ready the instrument number shown in the record panel to skip a name search.
Legal descriptions in Wyoming
Wyoming uses the Public Land Survey System, which means a tract near Midwest is described by section, township and range. Each section is nominally a mile square, about 640 acres, with 36 sections to a township, though sections near Bar Nunn can be irregular. Keep the legal description for land near Midwest for any title or survey request.
What the map can't tell you
Acreage on the record is an estimate; only a licensed surveyor sets the real lines for a parcel near Evansville. In and around Evansville, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Taking the map into the field
Most viewers work in a phone browser, which helps when you're standing on land near Edgerton, though signal can drop in rural spots. A saved image of the lot near Mills and its lines helps when you meet an owner or agent.
Quick answers
How current is the parcel data in Casper?
Good question; owner data near Edgerton can lag new deeds by weeks, so check the deed index.
Can I search by owner name in Casper?
Short answer: the parcel record for a lot near Evansville lists the owner of record; try variations if nothing comes up.
Is there a separate city GIS for the city near Midwest?
Casper may publish zoning or utility maps separately.
What layers does the parcel viewer have around Bar Nunn?
Good question; aerials near Edgerton are usually available as a basemap; open the layer list to see what's there.
How is land described in Wyoming deeds?
For land near Mills, deeds use lot and block, metes and bounds or survey descriptions; copy it for any survey or title request.
Open the official Natrona County, WY 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.