Description
Tools for Geocoding Addresses in New Jersey using the 'NJOGIS' API.
Description
Provides an R interface to free geocoding REST APIs maintained by the New Jersey Office of GIS <https://njgin.nj.gov/njgin/edata/geocoding/index.html#!/> and commonly used shapefiles.
README.md
njgeo 
Tools for geocoding addresses using the State of New Jersey’s official geocoding service & accessing spatial data.
Installation
You can install the development version of njgeo from GitHub with:
# install.packages("devtools")
devtools::install_github("gavinrozzi/njgeo")
Usage
Geocoding
This package supports freely geocoding addresses in New Jersey. No API keys are required and this does not depend on any commercial services.
Find all matching address candidates for an address
geocode_address_candidates("33 Livingston Ave. New Brunswick, NJ")
#> njgeo: downloading data
#> Simple feature collection with 4 features and 8 fields
#> Geometry type: POINT
#> Dimension: XY
#> Bounding box: xmin: -74.47533 ymin: 40.46493 xmax: -74.44513 ymax: 40.49297
#> Geodetic CRS: WGS 84
#> address score location.x location.y
#> 1 33 Livingston Avenue, New Brunswick, NJ, 08901 100.00 -74.44513 40.49297
#> 2 Livingston Avenue, New Brunswick, NJ, 08901 97.59 -74.45771 40.48024
#> 3 Livingston Avenue, North Brunswick, NJ, 08902 95.86 -74.47533 40.46493
#> 4 Livingston Avenue, East Brunswick, NJ, 08816 95.86 -74.44593 40.49154
#> extent.xmin extent.ymin extent.xmax extent.ymax geometry
#> 1 -74.44613 40.49197 -74.44413 40.49397 POINT (-74.44513 40.49297)
#> 2 -74.45871 40.47924 -74.45671 40.48124 POINT (-74.45771 40.48024)
#> 3 -74.47633 40.46393 -74.47433 40.46594 POINT (-74.47533 40.46493)
#> 4 -74.44693 40.49054 -74.44493 40.49254 POINT (-74.44593 40.49154)
The geocoding output defaults to EPSG:4326 but another CRS can be specified via arguments:
geocode_address_candidates("33 Livingston Ave. New Brunswick, NJ", crs = 3424)
#> njgeo: downloading data
#> Simple feature collection with 4 features and 8 fields
#> Geometry type: POINT
#> Dimension: XY
#> Bounding box: xmin: 498988.5 ymin: 594272.3 xmax: 507385.6 ymax: 604489.2
#> Projected CRS: NAD83 / New Jersey (ftUS)
#> address score location.x location.y
#> 1 33 Livingston Avenue, New Brunswick, NJ, 08901 100.00 507385.6 604489.2
#> 2 Livingston Avenue, New Brunswick, NJ, 08901 97.59 503889.1 599850.6
#> 3 Livingston Avenue, North Brunswick, NJ, 08902 95.86 498988.5 594272.3
#> 4 Livingston Avenue, East Brunswick, NJ, 08816 95.86 507163.8 603966.6
#> extent.xmin extent.ymin extent.xmax extent.ymax geometry
#> 1 507107.3 604124.7 507664.0 604853.6 POINT (507385.6 604489.2)
#> 2 503610.8 599486.2 504167.5 600215.1 POINT (503889.1 599850.6)
#> 3 498710.2 593908.0 499266.8 594636.7 POINT (498988.5 594272.3)
#> 4 506885.4 603602.2 507442.1 604331.1 POINT (507163.8 603966.6)
Batch Geocoding
It is possible to batch geocode up to 1000 addresses at once using the two batch geocoding functions provided by the package.
The batch_geocode_addresses() and batch_geocode_sl() functions can batch geocode up to 1000 addresses at a time. The first function expects multiple columns of data to geocode the address, while the sl version requires an address in single column format.
Reverse Geocoding
Provide a point to get matching addresses:
reverse_geocode(-74.44513, 40.49297)
#> njgeo: downloading data
#> Address Neighborhood City Subregion Region Postal
#> 1 33 Livingston Avenue New Brunswick Middlesex NJ 08901
#> PostalExt CountryCode Match_addr
#> 1 1900 33 Livingston Avenue, New Brunswick, NJ, 08901
#> Loc_name
#> 1 NJ_Geocode_Mul
Shape and boundary files
You can easily obtain spatial boundary data for use in projects via this package. All objects are returned as an {sf} object and a coordinate reference system can be specified via arguments to repoject the shape into a different CRS.
State
get_state_bounds()
#> njgeo: downloading data
#> Simple feature collection with 1 feature and 9 fields
#> Geometry type: POLYGON
#> Dimension: XY
#> Bounding box: xmin: -75.56342 ymin: 38.85289 xmax: -73.89363 ymax: 41.35765
#> Geodetic CRS: WGS 84
#> OBJECTID NAME GNIS_NAME GNIS ACRES SQ_MILES
#> 1 1 New Jersey State of New Jersey 1779795 5549497 8671.089
#> GLOBALID SHAPE_Length SHAPE_Area
#> 1 {64BFC6D2-D0A8-418C-9E76-ADF18AA40F74} 2703088 241735115122
#> geometry
#> 1 POLYGON ((-74.67081 41.3463...
Counties
get_county_bounds()
#> njgeo: downloading data
#> Simple feature collection with 21 features and 21 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -75.55957 ymin: 38.92852 xmax: -73.90245 ymax: 41.35765
#> Geodetic CRS: WGS 84
#> First 10 features:
#> FID COUNTY COUNTY_LABEL CO GNIS_NAME GNIS FIPSSTCO
#> 1 1 ATLANTIC Atlantic County ATL County of Atlantic 882270 34001
#> 2 2 BERGEN Bergen County BER County of Bergen 882271 34003
#> 3 3 BURLINGTON Burlington County BUR County of Burlington 882272 34005
#> 4 4 CAMDEN Camden County CAM County of Camden 882273 34007
#> 5 5 CAPE MAY Cape May County CAP County of Cape May 882274 34009
#> 6 6 CUMBERLAND Cumberland County CUM County of Cumberland 882275 34011
#> 7 7 ESSEX Essex County ESS County of Essex 882276 34013
#> 8 8 GLOUCESTER Gloucester County GLO County of Gloucester 882277 34015
#> 9 9 HUDSON Hudson County HUD County of Hudson 882278 34017
#> 10 10 HUNTERDON Hunterdon County HUN County of Hunterdon 882228 34019
#> FIPSCO ACRES SQ_MILES POP2010 POP2000 POP1990 POP1980 POPDEN2010
#> 1 1 390815.40 610.6491 274549 252552 275372 204615 450
#> 2 3 153490.28 239.8286 905116 884118 829592 849843 3774
#> 3 5 524903.34 820.1615 448734 423394 395066 362542 547
#> 4 7 145598.49 227.4976 513657 508932 532498 471650 2258
#> 5 9 183126.57 286.1353 97265 102326 95089 82266 340
#> 6 11 321150.32 501.7974 156898 146438 138053 132866 313
#> 7 13 83034.86 129.7420 783969 793633 748281 850451 6043
#> 8 15 215073.16 336.0518 288288 254673 230082 199917 858
#> 9 17 32982.40 51.5350 634266 608975 553099 556972 12307
#> 10 19 279879.34 437.3115 128349 121989 107776 87361 293
#> POPDEN2000 POPDEN1990 POPDEN1980 REGION SHAPE_Length SHAPE_Area
#> 1 414 451 335 COASTAL 2.054478 0.16559498
#> 2 3686 3459 3544 NORTHEASTERN 1.393879 0.06645191
#> 3 516 482 442 SOUTHERN 2.439422 0.22368243
#> 4 2237 2341 2073 SOUTHERN 1.553964 0.06197876
#> 5 358 332 288 COASTAL 1.589942 0.07723522
#> 6 292 275 265 SOUTHERN 2.213655 0.13586761
#> 7 6117 5767 6555 NORTHEASTERN 1.105311 0.03585682
#> 8 758 685 595 SOUTHERN 1.804883 0.09143512
#> 9 11817 10732 10808 NORTHEASTERN 1.225024 0.01423219
#> 10 279 246 200 CENTRAL 1.783708 0.12046630
#> geometry
#> 1 MULTIPOLYGON (((-74.67437 3...
#> 2 MULTIPOLYGON (((-73.90569 4...
#> 3 MULTIPOLYGON (((-74.69864 4...
#> 4 MULTIPOLYGON (((-75.03314 3...
#> 5 MULTIPOLYGON (((-74.85962 3...
#> 6 MULTIPOLYGON (((-75.06186 3...
#> 7 MULTIPOLYGON (((-74.32256 4...
#> 8 MULTIPOLYGON (((-75.12857 3...
#> 9 MULTIPOLYGON (((-74.16093 4...
#> 10 MULTIPOLYGON (((-74.86234 4...
Municipalities
get_muni_bounds()
#> njgeo: downloading data
#> Simple feature collection with 565 features and 23 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -75.55957 ymin: 38.92852 xmax: -73.90245 ymax: 41.35765
#> Geodetic CRS: WGS 84
#> First 10 features:
#> OBJECTID MUN COUNTY MUN_LABEL MUN_TYPE
#> 1 1 CAPE MAY POINT BORO CAPE MAY Cape May Point Borough Borough
#> 2 2 WEST CAPE MAY BORO CAPE MAY West Cape May Borough Borough
#> 3 3 CAPE MAY CITY CAPE MAY Cape May City City
#> 4 4 WILDWOOD CREST BORO CAPE MAY Wildwood Crest Borough Borough
#> 5 5 WEST WILDWOOD BORO CAPE MAY West Wildwood Borough Borough
#> 6 6 NORTH WILDWOOD CITY CAPE MAY North Wildwood City City
#> 7 7 LOWER TWP CAPE MAY Lower Township Township
#> 8 8 STONE HARBOR BORO CAPE MAY Stone Harbor Borough Borough
#> 9 9 AVALON BORO CAPE MAY Avalon Borough Borough
#> 10 10 MIDDLE TWP CAPE MAY Middle Township Township
#> NAME GNIS_NAME GNIS SSN MUN_CODE
#> 1 Cape May Point Borough Borough of Cape May Point 885179 0503 0503
#> 2 West Cape May Borough Borough of West Cape May 885435 0512 0512
#> 3 Cape May City of Cape May 885178 0502 0502
#> 4 Wildwood Crest Borough Borough of Wildwood Crest 885445 0515 0515
#> 5 West Wildwood Borough Borough of West Wildwood 885441 0513 0513
#> 6 North Wildwood City of North Wildwood 885328 0507 0507
#> 7 Lower Township Township of Lower 882044 0505 0505
#> 8 Stone Harbor Borough Borough of Stone Harbor 885410 0510 0510
#> 9 Avalon Borough Borough of Avalon 885146 0501 0501
#> 10 Middle Township Township of Middle 882045 0506 0506
#> CENSUS2010 ACRES SQ_MILES POP2010 POP2000 POP1990 POP1980 POPDEN2010
#> 1 3400910330 192.0512 0.3000799 291 241 248 255 970
#> 2 3400978530 756.5388 1.1820919 1024 1095 1026 1091 866
#> 3 3400910270 1844.8312 2.8825488 3607 4034 4668 4853 1251
#> 4 3400981200 947.7268 1.4808231 3270 3980 3631 4149 2208
#> 5 3400980210 232.8413 0.3638145 603 448 453 360 1657
#> 6 3400953490 1593.6241 2.4900376 4041 4935 5017 4714 1623
#> 7 3400941610 19851.6960 31.0182749 22866 22945 20820 17105 737
#> 8 3400971010 1479.9542 2.3124285 866 1128 1025 1187 374
#> 9 3400902320 3179.4468 4.9678857 1334 2143 1809 2162 269
#> 10 3400945810 52934.9963 82.7109317 18911 16405 14771 11373 229
#> POPDEN2000 POPDEN1990 POPDEN1980 SHAPE_Length SHAPE_Area
#> 1 803 826 850 0.04154698 8.075899e-05
#> 2 926 868 923 0.08769263 3.181544e-04
#> 3 1399 1619 1684 0.20318471 7.758056e-04
#> 4 2688 2452 2802 0.10132480 3.987271e-04
#> 5 1231 1245 990 0.05201539 9.800047e-05
#> 6 1982 2015 1893 0.14039854 6.707966e-04
#> 7 740 671 551 0.52199887 8.352893e-03
#> 8 488 443 513 0.13930193 6.232645e-04
#> 9 431 364 435 0.22707767 1.339875e-03
#> 10 198 179 138 0.81069461 2.230602e-02
#> geometry
#> 1 MULTIPOLYGON (((-74.95983 3...
#> 2 MULTIPOLYGON (((-74.92585 3...
#> 3 MULTIPOLYGON (((-74.8765 38...
#> 4 MULTIPOLYGON (((-74.83331 3...
#> 5 MULTIPOLYGON (((-74.8189 39...
#> 6 MULTIPOLYGON (((-74.7797 39...
#> 7 MULTIPOLYGON (((-74.934 39....
#> 8 MULTIPOLYGON (((-74.75414 3...
#> 9 MULTIPOLYGON (((-74.7138 39...
#> 10 MULTIPOLYGON (((-74.7174 39...