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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812 views

Using PLSS or BLM Boundaries in Oklahoma?

In Oklahoma should i be using the PLSS or BLM Boundaries I am struggling with: Which Surveying system to use in ArcGIS. The PLSS (Public Land Survey System) or the BLM (Bureau of Land Management) ...
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105 views

Can MSAs (CBSAs) split counties?

This is related to an earlier question (Understanding U.S. Census MSA to place relationships?), on which I'm still unclear. Can MSAs (CBSAs) split counties? According to Glaeser et al. (Growth in ...
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78 views

Building customized data set from American Community Survey data?

I am trying to create a database in SQL Server with a customized dataset containing census information from the American Community Survey content available online. I want to show a granularity in my ...
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254 views

Dataset in NJ, US

I need datasets in shapefile format including roadbed, building footprint and building roof height for Jersey City, NJ. I checked everywhere I could online. State, county and local GIS departments, as ...
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129 views

Insanely large house numbers in TIGER data

I'm parsing the US TIGER data and I'm coming across huge house numbers. example: 10100005 Thousand oaks drive, st johns, florida Google maps, and open street maps - nominatim says this is valid! Im ...
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134 views

Historical US zip code allocations and locations?

Is there a data source available that has the full history (right back to the 1960's) of each US zip code? By history I mean, for each zip code: the date it was created, if later than 1 July 1963, ...
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13 views

Accessing past USDA NRCS data

I am constructing a panel that includes past crop yields, but I found that SDA/WSS/GDG only grant access to the current version(2019) of cross-sectional tabular data. Is it possible to access ...
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1answer
59 views

Why does Google Maps display strange, jagged state boundaries in the Great Lakes?

When I search for a state on Google Maps, I am shown the state outlined in red. I've noticed that the states the border the Great Lakes have boundaries that protrude into the lakes in strange ways. ...
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1answer
45 views

Projecting as USA_Contiguous_Albers_Equal_Area_Conic_USGS in QGIS?

Is it possible to project EPSG: 6350 (NAD83 (2011)) as WKID: 102039 (USA_Contiguous_Albers_Equal_Area_Conic_USGS) in QGIS? There is no EPSG code and I'm unsure how to create a custom CRS.
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297 views

Source for US urban-suburban-rural classifications by census tract

I would like to assign every U.S. census tract its own unique classification on the urban-rural spectrum. USDA's Rural-Urban Area Commuting Codes (RUCA) is a good start, but it's focus is rural - it ...
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44 views

Choosing projection for distance calculations in Alaska?

I am working within the entire state of Alaska and slightly into western Canada, and I need a projection which will allow me to accurately calculate distances between points within the state. ...
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20 views

Is it possible to get specific Asian population totals from the Census at the Block or Block Group level?

I know you can get it at the Tract level but I can't for the life of me find it at at a lower level. I can find totals for just "Asian" at these levels but I want it to be more specific than that (e.g....
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110 views

Obtaining population estimates by ZCTA from American Fact Finder

I would like to obtain the most recent population estimates (and age and gender information if possible) at the ZIP Code Tabulation Area (ZCTA) level. I think this data exists on the American Fact ...
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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(...
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746 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: ...
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104 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 ...
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127 views

Is there an equal area basemap for the Alaska region of North America?

I am looking to apply an equal area basemap to my data. Although I do not receive an error when applying the data in the same arcmap document, the data is being spaced in an undesirable fashion. The ...
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46 views

Geospatial One-Stop no longer accessible?

I was wondering what happened to the "Geospatial One-Stop" site? The link: http://www.geodata.gov is no longer accessible. Is the portal superseded by another government website, or is it ...
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139 views

GIS data for Grocery store sales in the US

I am looking for sources that would provide sales data for grocery stores in the US. I have looked at ESRI's Business Data that they receive from InfoGroup, but was wondering if anyone know of any ...
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272 views

USA Road Network Data Set Options?

I need a contiguous, nationwide USA Road Network with speed limits, distances, etc. I have been using TIGER but the challenge is at state boundaries - where contiguous road segments are split. Is ...
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137 views

Where can I find GIS files that shows the 11 nations of the USA?

This book describes the cultural boundaries that define America. At least one person has created what seems to be a GIS style map from this. Does anyone know where I can locate these files?
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77 views

Are there any addresses that straddle two or more congressional districts?

I'm using a shapefile of TIGER data provided by the Census Bureau for locating an individual's congressional district. In PostGIS I'm running an ST_Intersects query in order to take a (lat, long) ...
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414 views

Seeking street/road shapefile with TF_TIME and FT_TIME attribute?

Doing a snow removal project within a county figuring out the fastest route for them to traverse on the roads to remove the snow from the sidewalk I was able to find the roads/street shapefile for ...
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36 views

Wireline internet (cable, dsl) availability data source

I'm looking for data on spatial availability of cable, dsl, etc. internet service in Washington State, USA. Mainly interested in the big telco providers Comcast, ATT, etc.
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256 views

How to calculate which US counties border the ocean?

I have a shapefile with boundaries of US counties. I want to figure out one seemingly simple thing - which counties are on the Atlantic ocean? NOAA maintains a list of coastal counties, but this ...
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75 views

Is there a established color convention for US Federal Agencies?

Do US Federal Agencies have a convention for coloring the lands under the jurisdiction of each? For example, BLM lands are often yellow, USFS light green, NPS blue or dark green, etc. I've found this, ...
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67 views

Pipeline and electric power grid data for Southern California?

Does anyone know where I can find GIS shapefile or other data for the electric transmission line system as well as water/natural gas and other pipeline systems for Southern California? Notably San ...
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77 views

Port boundaries for California

I'm interested in finding GIS data for ports in California. I have a point layer but I'm hoping to find polygons for each port. Surprisingly this is proving to be more difficult than first expected.
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63 views

Georgia (USA) data issues in OSM?

There is an annoying green background feature displayed in the Georgia, USA OpenStreetMap data that doesn't appear in other adjacent states. See: http://www.openstreetmap.org/relation/161957#map=8/33....
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130 views

Which projection should be chosen to model transmission lines across the USA?

I am looking at different options for high voltage power lines in the US. These power lines cross several states. Since in the end the distance is of importance, is the USA Contiguous Equidistant ...
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143 views

Using TIGER/Line shape files, how do I get address coordinates?

I've downloaded addressfeature shapefiles from TIGER/Line on the Census Bureau website. I converted one file to CSV using ogr2ogr. I get the following sample output: WKT,TLID,TFIDL,TFIDR,ARIDL,ARIDR,...
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66 views

Looking for a source of data for these specific United States Demographics for People and Businesses

Sorry for if I come across ignorant. I usually hangout over at StackOverflow. I'm a developer and a client has specific demographics needs that I'm not sure where to get. I looked at some Census data ...
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328 views

Seeking Road Data (for NE U.S.) to use in ArcGIS Network Analyst?

My current network dataset is utilizing North America Detailed Streets Layer Package, however, I would like to try out some other road networks to compare the the results. Would need the road data for ...
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233 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 ...
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212 views

Get house addresses within polygon?

Is there a data source/service for the USA where, if we provide a polygon, it provides the addresses of all houses contained within it? I just want to know if this type of functionality or similar to ...
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49 views

Finding equivalent API-supported data to the 2000 Census

I'm having some difficulty choosing Census datasets for a project that involve various SES measures at the block-group level. I'll be looking at things like median household income and percentage of ...
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1answer
807 views

COUNTY WebService API lookup from valid street address

I am looking for a solid WebService API that will allow me to submit an http request with a pre-validated US Street/City?state/Zip Address and return COUNTY in xml or json about 200 times per work day....
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320 views

Street block and Census Block

Study Area: Manhattan I'm measuring the street density using Street Network Grain size measure = Number of Street blocks per square mile. I have the NY street network but I do not have the map of ...
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1answer
24 views

US Census Bureau Shapefiles with district IDs

I am loading senate district polygon shapefiles from https://www.census.gov/cgi-bin/geo/shapefiles/index.php?year=2019&layergroup=State+Legislative+Districts into my Leaflet map. Well, to be ...
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44 views

Java example of batch geocoding with the US census bureau's geocoding API

I am geocoding a batch of addresses with the US Census Bureau's free geocoding tool. I am following the guide at https://geocoding.geo.census.gov/geocoder/Geocoding_Services_API.pdf. I have a ...
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57 views

Downloading Census data to PostgreSQL PostGIS TIGER extension for Amazon RDS database

Can someone point me toward instructions on how to download census data for the postGIS_tigerP_geocoder extension? I would like to use the geocode() function, but any query returns 0 results. From ...
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15 views

Finding satellite imaging showing developments in landcover in specific geographic areas?

I'm a student looking to compare the development in landcover every 5(ish) years across San Diego county & am not finding much luck with it so far.
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26 views

Seeking high resolution real-color (RGB imagery) dataset?

Specifically interested in the the South Florida region, USA. The aim is to pull up high quality aerials to detect manholes and wellheads from space! These things can typically be half a foot to a ...
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31 views

Obtaining geographic data for California?

Where can I download census tracts and infrastructure data of California for 1997?
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91 views

Solar Insolation Product with highest spatial resolution

My objective is to compare gis derived Solar Insolation against remotely sensed one. However modis has far coarser resolution then required. Is there any other product released? The site is in ...
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18 views

Translating Location Format from Wisconsin (USA)?

I have a location format in the form of '28N-24E-36' within a certain county (not sure that's important). I found a map that lists Section-Township-Range for the county of interest as six integers ...
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1answer
206 views

Seeking crosswalk of census tract to town instead of CDP?

I'm trying to match towns from a dataset to Census tracts in the year 2000, with FIPS code as a place identifier. I'm aware of http://mcdc2.missouri.edu/websas/geocorr2k.html#GFOPTS, the GeoCorr ...
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1answer
117 views

Looking for an Elko County Nevada Land Ownership Shapefile

I am looking for a Nevada Land Ownership shapefile. County and state GIS don't seem to have anything beyond pdf. Are there any public or commercial avenues to acquire land ownership in Nevada? I'...
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113 views

Seeking tool to geocode USA addresses?

I have a 6000 USA addresses in form: Address, City, State and ZIP . I want to geocode these addresses. I have tried to use QGIS MMQGIS plugin with geocode tool using Google services, but I have got ...
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69 views

How does the US Census Bureau simplify its Cartographic Boundary Shapefiles?

The US Census Cartographic Boundary Shapefiles are available in 1:500,000 and 1:5,000,000 and 1:20,000,000 resolutions. The boundaries are well-aligned and the data otherwise seemingly clean. How ...