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Street Centerlines

Published by Lake County Illinois GIS | Lake County, Illinois | Metadata Last Checked: February 26, 2026 | Last Modified: 2026-02-22T12:15:21.094Z
Download In State Plane Projection Here.  ** The Street Centerline feature class now follows the NG911/State of Illinois data specifications including a StreetNameAlias table. The download hyperlink above also contains a full network topology for use with the Esri Network Analyst extension ** These street centerlines were developed for a myriad of uses including E-911, as a cartographic base, and for use in spatial analysis. This coverage should include all public and selected private roads within Lake County, Illinois. Roads are initially entered using recorded documents and then later adjusted using current aerial photography. This dataset should satisfy National Map Accuracy Standards for a 1:1200 product. These centerlines have been provided to the United States Census Bureau and were used to conflate the TIGER road features for Lake County. The Census Bureau evaluated these centerlines and, based on field survey of 109 intersections, determined that there is a 95% confidence level that the coordinate positions in the centerline dataset fall within 1.9 meters of their true ground position. The fields PRE_DIR, ST_NAME, ST_TYPE and SUF_DIR are formatted according to United States Postal Service standards. Update Frequency: This dataset is updated on a weekly basis.

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Complete Metadata
@type dcat:Dataset
accessLevel public
contactPoint 
                                            {
  "fn": "LakeCounty_Illinois",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:gis@lakecountyil.gov"
}
description <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:0in; margin-left:0in; margin-bottom:.0001pt; background:white;'><b><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'><a href='https://maps.lakecountyil.gov/gisdata/roads.zip' target='_blank' rel='nofollow ugc noopener noreferrer'>Download In State Plane Projection Here</a>. </span></b></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:0in; margin-left:0in; margin-bottom:.0001pt; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>**<b> The Street Centerline feature class now follows the NG911/State of Illinois data specifications including a StreetNameAlias table. The download hyperlink above also contains a full network topology for use with the Esri Network Analyst extension </b>**</span></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:0in; margin-left:0in; margin-bottom:.0001pt; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>These street centerlines were developed for a myriad of uses including E-911, as a cartographic base, and for use in spatial analysis.</span></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>This coverage should include all public and selected private roads within Lake County, Illinois. Roads are initially entered using recorded documents and then later adjusted using current aerial photography. This dataset should satisfy National Map Accuracy Standards for a 1:1200 product.</span></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>These centerlines have been provided to the <a href='https://www.census.gov/' target='_blank' rel='nofollow ugc noopener noreferrer'>United States Census Bureau</a> and were used to conflate the <a href='https://www.census.gov/geographies/mapping-files.html' target='_blank' rel='nofollow ugc noopener noreferrer'>TIGER</a> road features for Lake County. The Census Bureau evaluated these centerlines and, based on field survey of 109 intersections, determined that there is a 95% confidence level that the coordinate positions in the centerline dataset fall within 1.9 meters of their true ground position.</span></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>The fields PRE_DIR, ST_NAME, ST_TYPE and SUF_DIR are formatted according to United States Postal Service standards.</span></p> <p style='margin-top:12.0pt; margin-right:0in; margin-bottom:12.0pt; margin-left:0in; background:white; font-variant-ligatures:normal; font-variant-caps:normal; text-align:start; text-decoration-style:initial; text-decoration-color:initial; word-spacing:0px;'><b><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'>Update Frequency:</span></b><span style='font-size:11.5pt; font-family:&quot;Helvetica&quot;,sans-serif; color:#4C4C4C;'><br /> This dataset is updated on a <b>weekly</b> basis.</span></p>
distribution 
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identifier https://www.arcgis.com/home/item.html?id=5b613a12ed0147989e6084ce31f9f9ec&sublayer=1
issued 2016-11-23T20:12:35.000Z
keyword 
                                            [
  "Centerlines",
  "Lake County Illinois",
  "Roads",
  "Streets",
  "Transportation",
  "Transportation spatial data"
]
landingPage https://data-lakecountyil.opendata.arcgis.com/datasets/lakecountyil::street-centerlines
license https://www.arcgis.com/sharing/rest/content/items/89679671cfa64832ac2399a0ef52e414/data
modified 2026-02-22T12:15:21.094Z
publisher 
                                            {
  "name": "Lake County Illinois GIS"
}
spatial -88.2340,42.1514,-87.7607,42.4966
theme 
                                            [
  "geospatial"
]
title Street Centerlines

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