All states
Missouri
8 layers of parcels and buildings, each tested with our export code. The national base map (roads, water, buildings) is offered everywhere too.
Open the map| Area | Layers | Checked | Map |
|---|---|---|---|
| Clay County | Parcels | 3 Nov 2026 | Map |
| Greene County | Parcels | 3 Nov 2026 | Map |
| Jackson County | Parcels | 3 Nov 2026 | Map |
| Jefferson County | Parcels | 3 Nov 2026 | Map |
| St. Charles County | Parcels | 3 Nov 2026 | Map |
| St. Louis City | ParcelsBuildings | 3 Nov 2026 | Map |
| St. Louis County | Parcels | 3 Nov 2026 | Map |
Terms, checks and service URLs for every layer
Clay County
ParcelsChecked 3 Nov 2026
- What it is
- Clay County MO Parcels (ClayCountyParcelService). Hosted county parcel service (item modified 2026-08-14). Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- Clay County, Missouri GIS (ArcGIS Online account 'clayco_gisadmin')
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 85 features. See it on the map
- Terms
- Public, no token; Clay County MO GIS hosted layer, no license text on the item
- Layer URL
Greene County
ParcelsChecked 3 Nov 2026
- What it is
- Greene County MO Parcels (Assessor IasWorldParcel5). Assessor iasWorld extract; sales through Aug 2026 present at verification. Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- Greene County, Missouri Assessor (greenecountyassessor.org)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 23 features. See it on the map
- Terms
- Public, no token; (c) Greene County Mo, no license text on the service
- Layer URL
Jackson County
ParcelsChecked 3 Nov 2026
- What it is
- Jackson County MO Parcels (ParcelViewer/ParcelsAscendRelate). Live parcel fabric behind the county Parcel Viewer (edited continuously). Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- Jackson County, Missouri GIS Department (jcgis.jacksongov.org)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 19 features. See it on the map
- Terms
- Public, no token; Jackson County MO GIS Department, no license text on the service
- Layer URL
Jefferson County
ParcelsChecked 3 Nov 2026
- What it is
- Jefferson County MO Tax Parcels. Assessor parcels, refreshed regularly (DateOfData 2026-10 at verification). Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- Jefferson County, Missouri Department of the County Assessor, GIS Division (ArcGIS Online org jeffcomo)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 51 features. See it on the map
- Terms
- Public, no token. Assessor 'User Agreement' shown in its viewer is a no-warranty/as-is disclaimer only (no use or redistribution limits); cadastral map is informational per 2 CSR 90-65.080
- Layer URL
St. Charles County
ParcelsChecked 3 Nov 2026
- What it is
- St. Charles County Parcels (hosted, updated daily). Assessor parcels, hosted copy updated daily. Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- St. Charles County Department of Information Systems, GIS Services (ArcGIS Online org 'stcharlescounty')
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 65 features. See it on the map
- Terms
- Public, no token; St. Charles County no-warranty disclaimer ('as is', reference only, not for survey)
- Layer URL
St. Louis City
ParcelsChecked 3 Nov 2026
- What it is
- City of St. Louis Parcels (St_Louis_Parcels). Current City parcel layer with Assessor attributes. Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- City of St. Louis (independent city; county-equivalent) GIS, maps6.stlouis-mo.gov
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 19 features. See it on the map
- Terms
- Public, no token; City of St. Louis GIS, no license text on the service
- Layer URL
Building footprintsChecked 3 Nov 2026
- What it is
- Buildings (Assessor public parcels map). Current city building layer (Const_Date / Demo_Date per building); capture date not stated
- Publisher
- City of St. Louis
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 16 features. See it on the map
- Terms
- Public; City of St. Louis GIS service, no license stated (city data disclaims warranty)
- Layer URL
St. Louis County
ParcelsChecked 3 Nov 2026
- What it is
- St. Louis County Parcels (AGS_Parcels). Current Assessor roll (TAXYR 2026 at verification). Assessor tax parcels, not legal boundaries or a survey.
- Publisher
- St. Louis County, Missouri GIS Service Center (maps.stlouisco.com)
- Checked
- Fetched by our export code on a ~300 m test site on 3 November 2026: 46 features. See it on the map
- Terms
- Public, no token; St. Louis County GIS with standard no-warranty disclaimer
- Layer URL
“Checked” means fetched by our export code on a test site. How we check · Data credits. Most local layers were found through Basesheet's source list (Copyright (c) 2026 Hunter Hillman, MIT License), then re-checked by us.