Johnston County GIS Data
Feature Data Layers obtained Aug. 28, 2000
The following county-wide feature data layers are available for Johnston County. The data are in shapefile format, State Plane 1927/feet. Current data are downloadable directly from Johnston County. Parcel maps, resampled digital orthophotos and contour maps are downloadable by tax map grid unit (downloadable as a layer).
|Shapefile||Description||File Size||Brief Metadata|
|taxindex||Tax Map Grid||0.05 mb||n/a|
|citylimi||City Limits||0.42 mb||n/a|
|jcetj||Planning Boundaries||0.06 mb||n/a|
|centerli||Centerlines (Streets)||2.47 mb||n/a|
|jcfire||Fire Districts||1.28 mb||n/a|
|jrescue||Rescue Squad Districts||0.98 mb||n/a|
|city||City Boundaries||0.09 mb||n/a|
|mrds||Major Roads||0.13 mb||n/a|
|names.dxf||Roadname Text||0.47 mb||n/a|
As of 2000, digital orthophoto flights had been conducted in spring 1995. The original data (black & white) is in TIFF format data is not yet available via the Libraries. The orthophotos are tiled to correspond to the tax map grid layout. The scale of each ortho image is1:4800, 5000x5000 pixel resolution. Resampled versions (resampled to 1 mb in file size from 25 mb Format) are downloadable as TIFFs by tax map grid cell.
Additional flights were done in early 2001. black & white photography was done at 200' scale and color photography at 400' scale. Color imagery may be available as early as Sept. 2001.