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NextGen 911 Site Structure Address Points, Wisconsin 2026

Identification Information

Citation
Title
NextGen 911 Site Structure Address Points, Wisconsin 2026
Originator
Wisconsin Office of Emergency Communications
Creation Date
2026-03-02
Edition
2026
Geospatial Data Presentation Form
mapDigital
Other Citation Details
Dataset is updated weekly on the OEC geoportal.
Abstract
[Current extent of site structure address points in the WI NG911 GIS data standards schema, as of March 2026. This schema is nearly identical to the NENA NG911 Standard. This data set is not yet complete, and will be added to as more SSAP data across the state is critical error free and made available. This data set is updated, on a weekly basis.] NG911 address points are precise, GIS-based, site-specific, or structural locations (latitude/longitude) required to accurately route emergency calls to the correct PSAP and dispatch responders. These points, alongside road centerlines and service boundaries, form the foundation of NENA i3 standards, ensuring precise location validation.
Purpose
This data is intended for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. These NG911 site structure points are digital, geocoded points that represent the specific, actionable location of a, site, or building entrance. They allow for more precise and faster emergency response by providing exact coordinates rather than just a range along a road.
Supplemental Information
This is an archived copy (annual) of the data at UW-Madison. Because of the nature of this content, the dataset is updated weekly on the OEC geoportal.
Temporal Extent
Time Instant
2026-03-02T00:00:00
Bounding Box
West
-92.950585
East
-86.750645
North
46.962193
South
42.459098
ISO Topic Category
location
society
Place Keyword
Wisconsin
Place Keyword Thesaurus
Theme Keyword
Public safety, Structure addresses
Theme Keyword Thesaurus
Resource Constraints
Use Limitation
Although this data is being distributed by the University of Wisconsin-Madison, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials.
Maintenance and Update Frequency
weekly
Language
eng
Credit
Wisconsin Office of Emergency Communications (OEC)
Point of Contact
Contact
Wisconsin Office of Emergency Communications
Point of Contact
Contact
Zachary Hassler
Position Name
GIS Program manager
Email
Zachary.Hassler@widma.gov

Spatial Reference Information

Reference System Identifier
Code
3071
Code Space
EPSG
Version
6.12(9.2.0)

Data Quality Information

Lineage
Process Step
Description
Added dataset to the RML data archive for 2026.
Process Date
2026-03-02T00:00:00

Distribution Information

Format Name
File Geodatabase Feature Class
Format Version
3.5
Distributor
UW-Madison
Online Access
https://web.s3.wisc.edu/rml-gisdata/WI_NG911_SiteStructureAddressPoints.zip
Protocol
WWW:DOWNLOAD-1.0-http--download
Name
GeoData@Wisconsin
Function
download

Spatial Representation Information

Vector
Topology Level
geometryOnly
Vector Object Type
point
Vector Object Count
2.286135E6

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
C7A8A649-0E00-44D7-B53E-8643C54F3C88
Metadata Date Stamp
2026-03-06
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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