| 1930s_airphotos_92 | 1930's Digital Orthorectified Image of Washington County, Iowa, in MrSid Format | |
| 1950s_airphotos_92 | 1950's Digital Orthorectified Image of Washington County, Iowa, in MrSid Format | |
| 1960s_airphotos_92 | 1960's Digital Orthorectified Image of Washington County, Iowa, in MrSid Format | |
| 1970s_airphotos_92 | 1970's Digital Orthorectified Image of Washington County Iowa | |
| 1980s_CIR_airphotos_92 | 1980's Digital Orthorectified Image of Washington County, Iowa, in MrSid Format | |
| 1990s_airphotos_92 | 1990's Airphoto Mosaic for Washington County | |
| 2002_CIR_92 | 2002 Color-Infra-Red Airphoto Mosaic for Washington County | |
| 2004_NAIP_airphotos_92 | 2004 National Agriculture Imagery Program (NAIP) Aerial Photography for Washington County, Iowa | |
| 2005_NAIP_airphotos_92 | 2005 National Agriculture Imagery Program (NAIP) Aerial Photography for Washington County, Iowa | |
| 2006_NAIP_airphotos_92 | 2006 National Agriculture Imagery Program (NAIP) Aerial Photography of Washington County, Iowa | |
| 2007_NAIP_airphotos_92 | 2007 National Agriculture Imagery Program (NAIP) Aerial Photography of Washington County, Iowa | |
| 2008_NAIP_airphotos_92 | 2008 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Washington County, Iowa | |
| 2009_NAIP_airphotos_92 | 2009 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Washington County, Iow | |
| 2010_CIR_airphotos_92 | 2010 Two Foot Pixel, Color Infrared Orthophotography Mosaic of Washington County Iowa | |
| 2010_color_airphotos_92 | 2010 Two Foot Pixel, Color Orthophotography Mosaic of Washington County Iowa | |
| 2010_NAIP_airphotos_92 | 2010 National Agriculture Imagery Program (NAIP) Aerial Photography Mosaic of Washington County, Iowa | |
| 2011_NAIP_airphotos_92 | 2011 National Agriculture Imagery Program (NAIP) Four-Band Aerial Photography of Washington County Iowa | |
| andreas_atlas_92 | Georectified Image of Washington County from the Illustrated Historical Atlas of the State of Iowa, 1875, by A.T. Andreas | |
| census_1990_92 | US Bureau of the Census, 1990 STF3a block level for Washington County, Iowa | |
| census_2000_blocks_92 | Washington County Census 2000 Blocks | |
| common_land_unit_92 | Common Land Unit for Washington County, Iowa | |
| contours_2ft_92 | Generalized Two Foot Contours of Washington County Iowa Derived from Lidar Data | |
| DEM_3M_I_92 | Three Meter Digital Elevation Model of Washington County Iowa as an Imagine 16-bit Integer Raster | |
| DOT_roadmap_92 | Iowa DOT Washington County Highway Transportation Map, 2005 | |
| drainage_district_tiles_92 | Drainage District Infrastructure of Washington County, Iowa | |
| drainage_districts_92 | Drainage Districts of Washington County, Iowa | |
| GLO_maps_92 | General Land Office (GLO) Maps of the State of Iowa, as Surveyed from 1836-59, Washington County | |
| GLO_vegetation_92 | Government Land Office Vegetation 1832-1859 for Washington County, Iowa | |
| Hillshade_1M_92 | Hillshade of Washington County Iowa Derived from the LiDAR One Meter Digital Elevation Model | |
| HRLC_2009_92 | High Resolution Landcover of Washington County Iowa, 2009 | |
| NWI_92_line | National Wetlands Inventory data for Washington County, Iowa | |
| NWI_92_poly | National Wetlands Inventory data for Washington County, Iowa | |
| NWI_remap_line_92 | National Wetland Inventory Remap and Update, Line Features, of Washington County, Iowa | |
| NWI_remap_poly_92 | National Wetland Inventory Remap and Update, Polygon Features, of Washington County, Iowa | |
| PLSS_92 | Public Land Survey System for Washington County, Iowa | |
| PLSS_QQQ_92 | Public Land Survey System, Quarter-Quarter-Quarter Sections, of Washington County Iowa | |
| rivers_92 | Rivers of Washington County | |
| roads_2006_92 | Road Centerlines of Washington County, Iowa, 2006, from Iowa DOT GIMS files | |
| soils_92 | Iowa Cooperative Soil Survey (ICSS) Digital Soil Data for Washington County | |
| spot_92 | Digital spot data for Washington County, Iowa | |
| ssurgo_line_92 | Soil Survey Geographic (SSURGO) database for Washington County Iowa, with attached ISPAID database | |
| ssurgo_soil_92 | Soil Survey Geographic (SSURGO) database for Washington County Iowa, with attached ISPAID database | |
| ssurgo_spot_92 | Soil Survey Geographic (SSURGO) database for Washington County Iowa, with attached ISPAID database | |
| USGS_quads_92 | USGS 7.5' Quad Mosaic for Washington County |