Questions tagged [united-states]

Use this tag for Questions which are specific to the country of the United States of America (USA), Do not use for United States Virgin Islands (VIR)

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13
votes
3answers
673 views

Does transforming to a new projection, then back, affect data accuracy?

I have a feature class (South Carolina counties, so a fairly large geographic area) in NAD83 SC State Plane. It needs to be transformed to a second projection (NAD83 UTM 17), then transformed back to ...
1
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0answers
1k views

Resize and relocate Alaska and Hawaii on US county map with R

How can I resize, relocate and frame Alaska and Hawaii on a US county map, to look more like a traditional map of the fifty states (and DC)? I've loaded Esri's US county shapefile into R: library(...
0
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0answers
41 views

Programmatically download NED, Landcover, etc. data from USGS [duplicate]

What are my current options for downloading geodata (NED, landcover, etc.) from the USGS programmatically?
0
votes
0answers
88 views

Geographic Transformation in Alaska Between NAD83 (NSRS 2007) and NAD83

What is the best geographic transformation for Alaska to go from NAD83 to NAD83 (NSRS2007)? Esri available transformation for GCS_NAD_1983_NSRS2007 to NAD83: WGS_1984_(ITRF00)_To_NAD_1983 + ...
13
votes
1answer
25k views

Choosing projected coordinate system for mapping all US states?

I'm on a project requires integrating data for all states in the US. It means I have two roadway datasets and I'm going to assign the attributes of roadways in one dataset to the same roadways in the ...
49
votes
11answers
103k views

Obtaining up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes? [closed]

NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
8
votes
5answers
6k views

Meaning of dash in house address number in USA?

I have a set of addresses with a dash between the numbers: 800 - 1100 HORD ST 75202 2400 - 2500 KITTRELL ST 75201 I thought this refers to houses from 800 to 1100 and from 2400 to 2500 on those ...
1
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0answers
817 views

Downloading OpenStreetMap data for one state of USA?

I'm following this tutorial It has following instrucions to download the data: 1) Planet download: wget -c http://planet.openstreetmap.org/pbf/planet-latest.osm.pbf 2) This for Great britain: ...
4
votes
5answers
3k views

Data providers equivalent to USDA/NRCS/FSA Common Land Unit (CLU)?

For one of my agricultural projects, I really need reasonably accurate field boundaries for fields in the US, specifically Iowa right now but later, other similar states. The USDA/NRSC/FSA Common ...
1
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4answers
867 views

Seeking USA CLU shapefiles for agricultural land?

I know Is geocomm.com permanently unavailable? was asked a few days back and is closed. That is the site I was hoping to buy from initially. Data providers equivalent to USDA/NRCS/FSA Common Land ...
-3
votes
2answers
120 views

GIS Shapefile finding [duplicate]

I want to make a map using ArcGIS and for that I need the limits of the cities of the area. Where I can get shapefiles for cities in the US?
2
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1answer
94 views

Why do St. Croix and Angaur of Virgin Islands have same FIPS code?

Could any one help me answer this. I am a non US citizen and working with d3js(geojson). I came across two locations in Virgin Islands which share the same FIPS code - St. Croix and Angaur have FIPS ...
2
votes
2answers
354 views

PLSS Shapefile for Adams county CO

Where can I find a simple TOWNSHIP/RANGE, SECTION, QUARTER SECTION shapefile for Adams County Colorado?
1
vote
1answer
168 views

Los Angeles county aerial imagery

I am looking for a basemap of LA county showing aerial imagery similar to Google Earth. However, I also need it in a specific projection: NAD_1983_StatePlane_California_V_FIPS_0405_Feet. Does anyone ...
2
votes
2answers
512 views

What projection is being used in this dataset?

I'm not from US and so don't know much about the CRS/EPSG there. Anyway, when reviewing the FAA 5010 Airport dataset on https://www.faa.gov/airports/airport_safety/airportdata_5010/#5010 (direct ...
-3
votes
1answer
105 views

Acquiring data of Billboards on USA [closed]

I have this task on ArcGis consisting on retrieving landownership data of every billboards' in USA, etc... from where should I start ?
-6
votes
2answers
317 views

Where can I get shapefiles for AE - U.S. Armed Forces – Europe AP - U.S. Armed Forces – Pacific PR - Puerto Rico? [closed]

I need shapefiles for these: AE - U.S. Armed Forces – Europe AP - U.S. Armed Forces – Pacific PR - Puerto Rico Where can I find them ?
-1
votes
3answers
715 views

What are the state border outlines called which treat every state as a single entity, including surrounding waters?

What are the state border outlines called which treat every state as a single entity, including surrounding waters? I need to create a latitude/longitude pairing of each state's "borders", which I ...
0
votes
1answer
78 views

Find data: Number of households by income level per U.S. state?

Do you by any chance know an online source, where I can find the number of households by income level per U.S. state? I have been going through all of the U.S. census data, but I only can find total ...
0
votes
1answer
231 views

USA national grid shapefiles

Where can I find shapefiles for 1kmx1km grid (UTM grid) for the entire USA? It seems everywhere that I looked at there were shapefiles for states separately or for some particular UTM zones. I don't ...
2
votes
3answers
663 views

How to find ZCTA for the 2010 Census block code?

I'm trying to find ZIP Code Tabulation Areas for the list of 2010 Census block codes. How to get ZIP Code Tabulation Areas for Census block code?
6
votes
1answer
5k views

Getting a list of zip codes with its adjacent zip codes

I need a list in the form of adjacency list that contains all zip codes in the United States that each has a list of adjacent zip codes. I tried searching for it on the internet. Many of them only ...
1
vote
1answer
79 views

FInding the SRID for NAD_1927_UTM_Zone_7N? [duplicate]

How do I find the SRID for this shapefile? (output from ogrinfo -so) Geometry: Polygon Feature Count: 3 Extent: (-76840.712074, 7832057.693703) - (123912.271665, 7979730.291856) Layer SRS WKT: PROJCS[...
1
vote
1answer
98 views

How to find address from the Census BlockCode?

I have Census BlockCode information (15 digits) and need to get corresponding street name and address in NYC. What is the best source of such information?
1
vote
0answers
124 views

Number of lanes in road data

I have been learning about the TIGER and the National Map datasets for mapping roads in the United States. One limitation is that as far as I can see there is no data on the number of lanes. The main ...
3
votes
1answer
192 views

Seeking Postcode Boundaries for USA?

I'm using ODL Studio to draw US zip codes, and though I can download the free database and get it to load, I can't figure out how to draw boundaries. The tutorial provided on their site explains how ...
0
votes
1answer
199 views

Seeking symbology (.lyr?) for USGS geologic maps?

I work a lot with USGS geologic maps and always have the same problem. I am able to download the files from the website (in .e00 format), and make a nice shapefiles out of them. My problem is that ...
1
vote
2answers
1k views

Where can I download Southern California Interstate Highway System in a Shapefile?

Does anybody know where I can download the Interstate highway system (as a shapefile) for Southern California (the area around San Diego in particular)?
5
votes
2answers
6k views

Seeking USA electric transmission powerlines as shapefiles?

Does anyone have a good source for USA electric transmission powerlines as shapefiles? I have some old (1993) data from the US National Renewable Energy Laboratory (NREL) and Cubewerx' WMS (Cubewerx ...
4
votes
3answers
6k views

Geocoding address to polygon?

Is there a service that can take an address and return a polygon of the property lines (or the coordinates of the corners of the smallest possible bounding rectangle)? The area is Oakland, CA, USA.
4
votes
1answer
449 views

Best place to download or purchase shapefiles for Louisiana Parish?

I am looking for shapefiles to either download or purchase for the BEAUREGARD Parish in Louisiana. I have been able to find files for the Townships and Sections but I am in desperate need of a ...
13
votes
4answers
11k views

Downloading DEM data for US?

USGS has been moving towards serving data through The National Map Viewer. They have several WMServices through their website that serve elevation data to the public (hillshade & DEM). The ...
0
votes
2answers
139 views

Seeking contour data for Oregon? [closed]

Does anyone know where I can find good contour layers for Oregon? I do not have spatial analyst, so I can not make my own.
2
votes
5answers
808 views

Land Use/ Land Cover for Hawaii?

Talking to a friend of mine in Hawaii and I am from New Mexico. My question to you all is to see if there is a land use/land cover dataset for Hawaii?
1
vote
1answer
229 views

Michigan City Boundary ESRI Shapefiles

I want to run I-Tree "Canopy" and am looking for an official Esri shapefile that defines the city of Warren Michigan's jurisdictional boundaries.
2
votes
2answers
172 views

How to choose a latitude-longitude among conflicting sources

Suppose you use various geocoding facilities (like Mapquest's API, Texas A&M's, etc.) to get a latitude-longitude pair for a given address in the United States. They give you differing answers, ...
1
vote
1answer
97 views

looking for datum to georeference maps of 19th century Maine

I am trying to georeference three (1840, 1844, and 1877) northern Maine maps. I really am not able to find which datum to use. Can anyone point me to a list of historic and regional datums?
3
votes
3answers
6k views

How to find income data by census tract or block?

I am trying to find a file with income data for every census tract. On the American FactFinder/Census websites, I can find data for each individual state or county but I want all census tracts in ...
3
votes
3answers
2k views

Where can I find the finest granularity of 2010 US census population information?

I am writing a re-districting application where I want to be able to create US voting districts based on geographic coordinate population data. In a perfect world, I would have the population for each ...
3
votes
2answers
927 views

What is the smallest US geographic region with income data?

I'm looking for any region that is smaller than block groups. And it doesn't have to be for the whole United States. Does this exist? Does anyone have any ideas? I feel like I saw somewhere that ...
3
votes
3answers
2k views

Sites with recreational shapefiles for United States?

Do you know of any sites that I could find some recreational shapefiles? An example would be shapefiles of golf courses, ski resorts, or maybe baseball fields in the United States?
2
votes
2answers
166 views

Identify Unknown Coordinate System (not Georeferenced)

I got coordinates to old survey data in an Excel Spreadsheet. The coordinate system is unknown. I enter the values into a proprietary system to display them in module using Google Earth. I tried to ...
1
vote
1answer
93 views

Tract FIPS code from commuter survey, missing record in Census TIGER table

The U.S. Department of Transportation published 2006-2010 tract-to-tract commute survey data (https://www.fhwa.dot.gov/planning/census_issues/ctpp/data_products/2006-2010_tract_flows/). The survey ...
2
votes
1answer
527 views

Where can I find shapefiles for the ecoregion map of the US?

I want to find a shapefile for the map at the bottom of https://www.epa.gov/eco-research/ecoregions I would want to create a map showing some data for the 10 forest ecoregions.
2
votes
1answer
525 views

Where can I find road attribute and network for New York City?

Is there any possible to find the attribute of each road (such as road capacity, speed, longitude and latitude.) in New York City?
1
vote
1answer
59 views

Are there existing maps of U.S. county boundaries?

I'm relatively new to Carto and very new on the latest interface. Is there a way to find and join an existing map of Arizona county boundaries to my own data file for the same counties?
0
votes
1answer
69 views

Update status of Bing Maps or Here Maps imagery for US area?

Does anyone know if any updates to Bing or Here (not sure what it is now) imagery is planned for the Southeastern Washington state area? We are not highly populated but we have a 1/4-million urban ...
1
vote
0answers
242 views

GIS files for US Special Districts?

I'm looking for GIS files (shapefiles, geoJSON, KML...) for US special districts, but I can't find them anywhere. Special districts are single-purpose local government distinct from counties and ...
2
votes
3answers
1k views

Detroit Building Footprint shapefile

I am looking to find a dataset/shapefile of a Building footprint/outlines for the city of Detroit. I have found this dateset of detroit parcels but I need Building Footprints! http://d3.d3.opendata....
4
votes
2answers
598 views

Extract tract shapefile from 2006 US Census

I have downloaded the 2006 census tract files. This version does not have the shapefiles format but the tiger format. I am able to load the data in python using following code: import ogr ...

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