Blog · October 14, 2026 · Illinois
Washington GIS Map: looking up parcels
Parcel data for Washington comes from the county, and the viewer is free.
Main page: Tazewell County, IL GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When land near Creve Coeur catches your eye, the Washington GIS map shows parcel boundaries plus basic tax data. This Washington guide covers: which viewer to open, how to search it, and what to double-check with records.
Getting started with the Washington GIS map
In and around Creve Coeur, some cities also run their own GIS portal for utilities or zoning; that can add detail on top of the county map.
Pulling up a parcel
Go first to the Tazewell County ArcGIS parcel map; it includes every tax parcel from Marquette Heights to Morton. For a tract near North Pekin, type a street address, an owner's name or a parcel number, and the viewer zooms to the match. For property near Morton, the parcel card normally shows the owner of record, acreage on the tax roll, a parcel ID and sometimes recent sales.
What the map can't tell you
Tax maps are drawn for assessment, not surveyed, so a tree line near Marquette Heights often sits several feet off the line on screen. For a parcel near Deer Creek, records update in batches, so a deed recorded last month might lag behind.
City limits and county records
Washington sits in Tazewell County, Illinois, and the county assessor maps its lots. If the land is near Creve Coeur, the municipality handles things like zoning, permits and utilities within town limits, and the county still keeps the parcel and deed records. Land beyond the town limits out by Marquette Heights usually falls under county rules instead.
Keeping a record
Print or screenshot the parcel near Marquette Heights with its ID visible, which helps later when you ask the assessor or a title company.
Search tips
Addresses are the easiest route inside Washington; owner search often wants the surname first. Closer to East Peoria, searching by parcel number never misses, and it carries over to every office in the county.
Taking the map into the field
The parcel map usually runs in a mobile browser, which helps when you're standing on land near Marquette Heights, but coverage can be spotty out of town. A screenshot of the parcel near Morton with its ID helps when you meet an owner or agent.
Deeds, plats and who keeps them
The map is an index, not the title: recorded deeds, subdivision plats and easements covering ground around North Pekin sit with the county Recorder of Deeds (in many counties the County Clerk and Recorder). Inherited tracts near North Pekin can trace back through many deeds, so a title company earns its fee before a purchase.
When a parcel crosses a boundary
Tazewell County borders Fulton County, Logan County, McLean County, Mason County, and Peoria County, all with their own assessor records. Acreage along the edge near East Peoria may be split across two assessors' files, so look at the adjacent map as well. Out toward Creve Coeur, our state page lists each bordering county map across Illinois.
Getting answers from the right desk
Questions about value or the owner field for land near Deer Creek go to the Supervisor of Assessments, working with township assessors, the office behind the parcel record. Building or septic questions for a lot near North Pekin need the planning or permitting office, and the answer depends on jurisdiction.
Tazewell County in a few facts
Pekin holds the county offices, which is where the courthouse records live. You'll also find East Peoria, Morton, Deer Creek, and Creve Coeur. About 129,541 people live in Tazewell County (Census estimate, 2023) across about 646 square miles. Tazewell County was organized in 1827, and some chains of title near East Peoria are long.
How land is described here
Illinois follows the Public Land Survey System, so deeds around East Peoria reference sections and townships. Each section is nominally a mile square, about 640 acres, and a township holds 36 of them, though real sections near Morton vary in size. Copy the legal description from the record for the parcel near Morton for any title or survey request.
When the map won't load
If the viewer stalls on a phone near Morton, switch browsers or turn off pop-up blockers; the Platbookmapper county page tracks the current link.
What the layers show
For land near Marquette Heights, layer lists often include municipal boundaries, floodplain and sometimes zoning; availability varies.
Reading a parcel record
If sale dates appear, they help gauge the market in Washington are a useful starting point; an appraiser is the real authority.
Washington: common questions
Does the Washington parcel viewer cost anything?
The Tazewell County ArcGIS parcel map is free and opens without a login.
How current is the parcel data in Washington?
Short answer: owner data near North Pekin can lag new deeds by weeks; check recorded deeds for anything recent.
How do I find who owns a lot near Deer Creek?
Generally, click the lot near Morton to see the owner, or search by address instead.
What layers does the parcel viewer have for land near Marquette Heights?
For most people, aerials near East Peoria are usually available as a basemap; open the layer list to see what's there.
What's a legal description for land near Creve Coeur?
With a lot near Morton, Deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Tazewell County, IL 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.