# Official Sources of Mapping Information
**URL:** https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528
**Category:** United States
**Created:** [November 28, 2011, 5:28pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528 "2011-11-28T17:28:48Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@jondrush](https://www.waze.com/discuss/u/jondrush)
#### Post date: [November 28, 2011, 5:28pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/1 "2011-11-28T17:28:48Z")
I’d like to start a stickied thread that will provide new editors a list of official sources of mapping information from their state governments. Please provide any resources you know of and I will edit this post as I get time. I’d prefer sources that do not require separate software to be downloaded beyond PDF readers and browser plug-ins. Unofficial sources can be listed too, but many of them are mash-ups and unstable or unreliable.
Alabama
Alabama
Alaska
Arizona
Arkansas
—[Statewide Interactive Map](http://www.geostor.arkansas.gov/G6/Viewer.html)
California
Colorado
Connecticut
Delaware
District of Columbia
Florida
Georgia
Hawaii
Idaho
Illinois
—[County, City and Township Maps](http://www.dot.state.il.us/maps/generalmaps1.html)
Indiana
—[Statewide Interactive Map](http://inmap.indiana.edu/viewer.htm)
—[Statewide Map](http://www.in.gov/indot/files/StateTransportationMap.pdf)
Iowa
—[County and City Maps](http://www.iowadot.gov/maps/msp/pdfview/counties.html)
Kansas
—[County Maps](http://www.ksdot.org/burtransplan/maps/Mapscounties.asp)
—[City Maps](http://www.ksdot.org/burtransplan/maps/Mapscities.asp)
Kentucky
—[Statewide Interactive Map](http://kygeonet.ky.gov/tcm/)
Louisiana
Maine
Maryland
—[Grid maps](http://www.roads.maryland.gov/Index.aspx?PageId=790)
—[Incorporated town maps](http://www.roads.maryland.gov/pages/Townmaps.aspx?PageId=834)
—[Interactive map](http://mdmerlin.net/mapper.html)
Massachusetts
—[Statewide map](http://www.massdot.state.ma.us/highway/TrafficTravelResources/OfficialTransportationMap.aspx)
Michigan
—[Statewide Interactive Map](http://www.mcgi.state.mi.us/prfinder/MapPage.aspx)
Minnesota
Mississippi
—[Statewide Interactive Map](http://www.gis.ms.gov/Portal/viewer.aspx)
Missouri
—[County Maps](http://www.modot.mo.gov/newsandinfo/CountyMaps.htm)
Montana
Nebraska
—[Statewide Map](http://www.nebraskatransportation.org/maps/highway/StateMap2011-front.pdf)
Nevada
New Hampshire
New Jersey
—[County maps](http://www.state.nj.us/transportation/gis/map.shtm)
New Mexico
New York
—[NYS Orthos Online](http://orthos.dhses.ny.gov) (bookmarklet available in the [Waze Wiki](http://www.waze.com/wiki/index.php/New_York_mapping_resources))
North Carolina
North Dakota
—[Statewide Interactive Map](http://web.apps.state.nd.us/imf/sites/hubexplorer/jsp/index.jsp)
Ohio
Oklahoma
Oregon
Pennsylvania
—[County Maps](http://www.dot.state.pa.us/Internet/Bureaus/pdPlanRes.nsf/infoBPRCartoCountyType10)
—[Municipal Maps](http://www.dot.state.pa.us/Internet/Bureaus/pdPlanRes.nsf/infoBPRTownshipandBoroughMaps?OpenForm&AutoFramed)
—[Many other types of maps](http://www.dot.state.pa.us/Internet/Bureaus/pdPlanRes.nsf/infoBPRCartoMapsinPDFandDJVU?OpenForm)
Rhode Island
South Carolina
South Dakota
—[Statewide Interactive Map](http://arcgis.sd.gov/Server/DOT/dotviewer/)
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming
—[Statewide Map](http://wygl.wygisc.org/DataServer/) Requires downloads, provided by University of Wyoming
---
### Author:  [@jasonm128](https://www.waze.com/discuss/u/jasonm128)
#### Post date: [November 28, 2011, 11:30pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/2 "2011-11-28T23:30:00Z")
# Massachusetts
Official state transportation map:
[http://www.massdot.state.ma.us/highway/TrafficTravelResources/OfficialTransportationMap.aspx](http://www.massdot.state.ma.us/highway/TrafficTravelResources/OfficialTransportationMap.aspx)
City of Cambridge, MA:
[http://www.cambridgema.gov/GIS/FindMapAtlas.cfm?tnltext=Maps%2FAtlases](http://www.cambridgema.gov/GIS/FindMapAtlas.cfm?tnltext=Maps%2FAtlases)
Best street reference I’ve found so far is the zoning map:
[http://www.cambridgema.gov/cdd/cp/zng/zmap/zoning\_map\_9600.pdf](http://www.cambridgema.gov/cdd/cp/zng/zmap/zoning_map_9600.pdf)
# Denver, CO
Precompiled (PDF) maps:
> **[Denver Maps - Downloads](https://www.denvergov.org/maps/category/downloads)**
Interactive GIS data browser (very difficult to find):
[http://www.denvergov.org/denvermaps/report.asp?rpt=map&cat=ccust](http://www.denvergov.org/denvermaps/report.asp?rpt=map&cat=ccust)
---
### Author:  [@mapcat](https://www.waze.com/discuss/u/mapcat)
#### Post date: [November 29, 2011, 1:54am UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/3 "2011-11-29T01:54:12Z")
Great idea. Here are a few I’ve used in the past. Some are not compatible with Chrome.
Arkansas: [GeoStor Viewer](http://www.geostor.arkansas.gov/G6/Viewer.html) (statewide GIS/aerial imagery)
Illinois: [General Highway Maps](http://www.dot.state.il.us/maps/generalmaps1.html) (b/w city and county map .pdfs, some very old)
Indiana: [IndianaMap](http://inmap.indiana.edu/viewer.htm) (statewide GIS/aerial imagery)
Indiana: [State Transportation Map](http://www.in.gov/indot/files/StateTransportationMap.pdf) (.pdf of free tourist map)
Iowa: [City and County maps](http://www.iowadot.gov/maps/msp/pdfview/counties.html) (.pdfs of DOT-produced street maps, generally very current)
Kansas: [County Maps](http://www.ksdot.org/burtransplan/maps/Mapscounties.asp) and [City Maps](http://www.ksdot.org/burtransplan/maps/Mapscities.asp) (.pdfs and .jpgs)
Kentucky: [The Commonwealth Map](http://kygeonet.ky.gov/tcm/) (statewide GIS/aerial imagery) (ESRI)
Michigan: [Michigan PR Finder](http://www.mcgi.state.mi.us/prfinder/MapPage.aspx) (Physical Road finder: statewide GIS & aerial imagery)
Mississippi: [Mississippi Geospatial Clearinghouse](http://www.gis.ms.gov/Portal/viewer.aspx?dom=&x=1152&y=749&browser=Netscape) (statewide GIS/aerial imagery) (ESRI)
Missouri: [County Maps](http://www.modot.mo.gov/newsandinfo/CountyMaps.htm) (.pdfs of every county road map in the state)
Nebraska: [Nebraska Imagery Lookup Map](http://maps.dnr.ne.gov/Quadrangles/default.aspx) (statewide GIS/aerial imagery
Nebraska: [State Highway Map](http://www.nebraskatransportation.org/maps/highway/StateMap2011-front.pdf) (.pdf of free tourist map)
North Dakota: [ND Hub Explorer](http://web.apps.state.nd.us/imf/sites/hubexplorer/jsp/index.jsp) (statewide GIS/aerial imagery)
Oklahoma: [Oklahoma DEQ Data Viewer](http://maps.scigis.com/deq_wq/MapFrame.asp) (statewide GIS/aerial imagery)
South Dakota: [SDDOT Viewer](http://arcgis.sd.gov/Server/DOT/dotviewer/) (statewide GIS/aerial imagery) (ESRI)
West Virginia: [Base Map Viewer](http://www.mapwv.gov/basemap/viewer.htm) (statewide GIS/aerial imagery)
Wyoming: [WyGISC Data Server](http://wygl.wygisc.org/DataServer/) (statewide imagery; addl info via download)
Nationwide: [US Census Bureau maps](http://www2.census.gov/geo/pvs/bas/bas11/) of all counties and incorporated places, listed by state (usually not as accurate as the above)
Nationwide: [Beacon](http://beacon.schneidercorp.com/Default.aspx) (approx 200 city/county local gov’t GIS linked through vendor’s site; mostly from midwestern states)
Many more exist for individual cities/counties if you desire to start another list. Actually, it would be easier for people to just search for “[cityname] GIS” and go from there.
---
### Author:  [@bgodette1](https://www.waze.com/discuss/u/bgodette1)
#### Post date: [November 29, 2011, 6:45am UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/4 "2011-11-29T06:45:12Z")
Since mapcat mentioned them already ESRI also runs a service called ArcGIS Online and can load GIS info from a variety of sources, including newer Tiger datasets. However you do need to be mindful of what your “basemap” source is as they might not be license compatible with Waze.
Sent from my SGH-T959V using Tapatalk
---
### Author:  [@jondrush](https://www.waze.com/discuss/u/jondrush)
#### Post date: [November 29, 2011, 7:07pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/5 "2011-11-29T19:07:48Z")
Yes, I’m trying to avoid third party vendors or viewers so we don’t run afoul of any licensing issues. I know there are free GIS data viewers out there, but the one’s I’ve looked at seem scammy or malware-like.
---
### Author:  [@mapcat](https://www.waze.com/discuss/u/mapcat)
#### Post date: [November 29, 2011, 9:56pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/6 "2011-11-29T21:56:23Z")
> [@jondrush](#):
>
> Yes, I’m trying to avoid third party vendors or viewers so we don’t run afoul of any licensing issues. I know there are free GIS data viewers out there, but the one’s I’ve looked at seem scammy or malware-like.
ESRI’s viewer isn’t scammy or malware-infested. I don’t use it much but when I do it’s as a third source. Layers include their own topo maps, street maps, and aerials, plus OSM and Bing products.
In case anyone feels reluctant to use this private company’s viewer, the list identifies the states who use it. IANAL, but since these states license it for public use, I don’t think there’s an issue. Here’s the disclaimer from Mississippi’s viewer:
> [@](#):
>
> Disclaimer
>
> Information presented on this website is considered public information and may be distributed or copied. Use of appropriate byline, photo, or image credit is requested. It is strongly recommended that Mississippi Geospatial Clearinghouse (MGC) data be acquired directly from a MGC server and not through other sources that may alter the data in some way. While the MGC makes every effort to provide accurate and complete information, various data such as names, telephone numbers, etc. may change prior to updating. The MGC welcomes suggestions on how to improve our web site and encourages notification of any errors. The MGC provides no warranty, expressed or implied, as to the accuracy, reliability or completeness of furnished data.
>
> Some of the documents on this server may contain live references or pointers to information created and maintained by other organizations. Please note that the MGC does not control and cannot guarantee the relevance, timeliness, or accuracy of these outside materials.
>
> For security purposes and to ensure that this service remains available to all users, the State of Mississippi employs measures to identify security risks and vulnerabilities to prevent the upload, modification, or otherwise damage to data. Unauthorized attempts on this web site are strictly prohibited and may be punishable under the Computer Fraud and Abuse Act of 1986 and the National Information Infrastructure Protection Act.
---
### Author:  [@OscarC](https://www.waze.com/discuss/u/OscarC)
#### Post date: [November 30, 2011, 2:55am UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/7 "2011-11-30T02:55:40Z")
Minnesota–
MN DOT Site:
- County Maps: [http://www.dot.state.mn.us/maps/cadd/html/counties.html](http://www.dot.state.mn.us/maps/cadd/html/counties.html)
- City Maps: [http://www.dot.state.mn.us/maps/cadd/html/Cities\_alpha.html](http://www.dot.state.mn.us/maps/cadd/html/Cities_alpha.html)
- Other (Metro maps, highways, traffic maps, etc): [http://www.dot.state.mn.us/maps/index.html](http://www.dot.state.mn.us/maps/index.html)
- Construction maps: [http://www.dot.state.mn.us/roadwork/current.html](http://www.dot.state.mn.us/roadwork/current.html)
Local government sites: [http://www.state.mn.us/portal/mn/jsp/content.do?az\_type=description&subchannel=-536879913&programid=536879800&id=-8494&agency=NorthStar&sp2=y](http://www.state.mn.us/portal/mn/jsp/content.do?az_type=description&subchannel=-536879913&programid=536879800&id=-8494&agency=NorthStar&sp2=y)
I’ve also used different sources of zip code boundary sites to help find some boundaries, especially in rural areas, but don’t know about the copyrights or licensing on them so I won’t post them.
---
### Author:  [@WeeeZer14](https://www.waze.com/discuss/u/WeeeZer14)
#### Post date: [December 1, 2011, 2:10am UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/8 "2011-12-01T02:10:20Z")
NY/NJ/CT - [http://www.nycroads.com/](http://www.nycroads.com/) Unofficial, but a wealth of knowledge
NJ - [http://www.nj.gov/transportation/gis/](http://www.nj.gov/transportation/gis/) State DOT and GIS Maps
NY - [http://www.nysgis.state.ny.us/](http://www.nysgis.state.ny.us/) State GIS Maps
TN - [http://tnmap.state.tn.us/viewer/](http://tnmap.state.tn.us/viewer/) State GIS Maps
[http://www.tdot.state.tn.us/maps.htm](http://www.tdot.state.tn.us/maps.htm) State DOT Maps
[http://www.kgis.org/KGIS\_Lite/MapViewer.html](http://www.kgis.org/KGIS_Lite/MapViewer.html) Knox County GIS
---
### Author:  [@CBenson](https://www.waze.com/discuss/u/CBenson)
#### Post date: [December 1, 2011, 11:22am UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/9 "2011-12-01T11:22:20Z")
DC
Functional Classification Map: [http://ddot.dc.gov/DC/DDOT/About+DDOT/Maps/Functional+Classification+Map](http://ddot.dc.gov/DC/DDOT/About+DDOT/Maps/Functional+Classification+Map)
Interactive Map: [http://dcatlas.dcgis.dc.gov/dcgis\_allservices/viewer.htm](http://dcatlas.dcgis.dc.gov/dcgis_allservices/viewer.htm) (only works in IE for me).
---
### Author:  [@gettingthere](https://www.waze.com/discuss/u/gettingthere)
#### Post date: [December 1, 2011, 5:19pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/10 "2011-12-01T17:19:17Z")
California GIS Map & Information (this site is hosted by a 3rd party but includes a comprehensive list of California GIS sites):
[http://www.coordinatedlegal.com/gis.html](http://www.coordinatedlegal.com/gis.html)
---
### Author:  [@cfreema](https://www.waze.com/discuss/u/cfreema)
#### Post date: [December 1, 2011, 7:21pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/11 "2011-12-01T19:21:02Z")
i also found this website here that has extremely good info. i use it all the time and it goes by incorporated cities/towns and zipcodes and unincorporated towns and is useful at getting borders because it provides an overlay over google maps which isn’t perfect but is darned close. look at cheverly, maryland and the 20785 zip code and you will see where cheverly is in the zipcode and where hyattsville surrounds cheverly in the same zip, cheverly being an incorporated town that does not occupy the entire zip code. the maps are about midway down the page on the left. it also gives detailed populace info for the nerds in us all.
[http://www.city-data.com/](http://www.city-data.com/)
---
### Author:  [@cfreema](https://www.waze.com/discuss/u/cfreema)
#### Post date: [December 1, 2011, 7:23pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/12 "2011-12-01T19:23:23Z")
> [@cfreema](#):
>
> i also found this website here that has extremely good info. i use it all the time and it goes by incorporated cities/towns and zipcodes and unincorporated towns and is useful at getting borders because it provides an overlay over google maps which isn’t perfect but is darned close. look at cheverly, maryland and the 20785 zip code and you will see where cheverly is in the zipcode and where hyattsville surrounds cheverly in the same zip, cheverly being an incorporated town that does not occupy the entire zip code. the maps are about midway down the page on the left. it also gives detailed populace info for the nerds in us all.
>
> [http://www.city-data.com/](http://www.city-data.com/)
p.s. this is for reference only and should not be integrated as a basemap due to licensing issues. i just use it to look at a line and manually edit the map.
---
### Author:  [@HavanaDay](https://www.waze.com/discuss/u/HavanaDay)
#### Post date: [December 5, 2011, 10:15pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/13 "2011-12-05T22:15:35Z")
A good starting point for North Carolina:
[http://www.lib.ncsu.edu/gis/counties.html](http://www.lib.ncsu.edu/gis/counties.html)
Otherwise I just usually type “county name” gis and get the right results in the first few google links.
---
### Author:  [@Spil](https://www.waze.com/discuss/u/Spil)
#### Post date: [February 16, 2012, 6:01pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/14 "2012-02-16T18:01:01Z")
> [@WeeeZer14](#):
>
> NY - [http://www.nysgis.state.ny.us/](http://www.nysgis.state.ny.us/) State GIS Maps
This has been updated to [GIS.NY.Gov](http://gis.ny.gov/)
And, wow, how bad is it when the state GIS maps have three road-name errors just within a block of my house? Hate to see how bad the rest of the state must be!
---
### Author:  [@jenncard](https://www.waze.com/discuss/u/jenncard)
#### Post date: [February 16, 2012, 7:59pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/15 "2012-02-16T19:59:09Z")
Here. Wiki. Now.
[http://www.waze.com/wiki/index.php/How\_to\_label\_and\_name\_roads#Official\_Sources\_of\_Mapping\_information](http://www.waze.com/wiki/index.php/How_to_label_and_name_roads#Official_Sources_of_Mapping_information)
---
### Author:  [@BlackjackNY](https://www.waze.com/discuss/u/BlackjackNY)
#### Post date: [February 16, 2012, 9:11pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/16 "2012-02-16T21:11:49Z")
> [@Spil](#):
>
> > [@WeeeZer14](#):
> >
> > NY - [http://www.nysgis.state.ny.us/](http://www.nysgis.state.ny.us/) State GIS Maps
>
> This has been updated to [GIS.NY.Gov](http://gis.ny.gov/)
>
> And, wow, how bad is it when the state GIS maps have three road-name errors just within a block of my house? Hate to see how bad the rest of the state must be!
I can confirm that the GIS(at least in my area) is a mess. The county police based their database on it, which was a huge mistake. Thankfully, the fire service did not base their own database on GIS info.
---
### Author:  [@jondrush](https://www.waze.com/discuss/u/jondrush)
#### Post date: [February 20, 2012, 5:56pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/17 "2012-02-20T17:56:18Z")
> [@jenncard](#):
>
> Here. Wiki. Now.
> [http://www.waze.com/wiki/index.php/How\_to\_label\_and\_name\_roads#Official\_Sources\_of\_Mapping\_information](http://www.waze.com/wiki/index.php/How_to_label_and_name_roads#Official_Sources_of_Mapping_information)
Dang-it Jenn, now I need to get to work . . . 😃
---
### Author:  [@thom\_p](https://www.waze.com/discuss/u/thom_p)
#### Post date: [February 23, 2012, 10:22pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/18 "2012-02-23T22:22:12Z")
Tennessee: Hamilton County: [http://maps.hamiltontn.gov/hcflex/](http://maps.hamiltontn.gov/hcflex/)
---
### Author:  [@mwhead2](https://www.waze.com/discuss/u/mwhead2)
#### Post date: [February 27, 2012, 7:00pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/19 "2012-02-27T19:00:36Z")
Georgia
[http://www.dot.state.ga.us/maps/Pages/default.aspx](http://www.dot.state.ga.us/maps/Pages/default.aspx)
Georgia County Parcel Maps
[http://gaassessors.com/georgia-map.html](http://gaassessors.com/georgia-map.html)
---
### Author:  [@mapcat](https://www.waze.com/discuss/u/mapcat)
#### Post date: [May 6, 2012, 3:49pm UTC](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528/20 "2012-05-06T15:49:37Z")
In case anyone thinks it would be easier to keep track of these in the wiki, I created a general page:
[http://www.waze.com/wiki/index.php/Mapping\_resources\_(USA)](http://www.waze.com/wiki/index.php/Mapping_resources_%28USA%29)
Here’s the Ohio page, for an example:
[http://www.waze.com/wiki/index.php/Ohio](http://www.waze.com/wiki/index.php/Ohio)
[Next page](https://www.waze.com/discuss/t/official-sources-of-mapping-information/137528.md?page=2)