Parcel data for solar developers

100,748 vacant or farmland parcels of 40 acres or more with no wetland and outside the 100-year flood zone, in 216 counties.

One county: $50 a month. A whole state: $400 a month or less. Searching on the map is free.

Open the free map Pricing

What you can do with it

Screen counties for large, dry, open parcels before land agents and interconnection studies spend time on them.

What each parcel record holds

Measured over each parcel boundary: the average daily solar radiation (kWh per square metre), soil slope, farmland class and crop type, land cover and forest, the share in the 100-year flood zone, the share that is wetland, and wildfire, tornado and hurricane history. Every record also holds the property address, the owner of record and the mailing address where the record has them (most Maryland, New Jersey and Washington records have no owner name; most Washington records have no mailing address), the land use code and the acreage. The parcel record and the earth observation catalog list every field.

The 20 counties with the most

CountyVacant or farmland, 40+ acres, no wetland, outside flood zone All parcels
Grant County, WA6,02159,368
Grant County, WI4,45248,765
Fergus County, MT2,78020,862
Adams County, WA2,54413,719
Lafayette County, WI2,52221,562
Yakima County, WA2,518105,423
Beaverhead County, MT2,18016,143
Iowa County, WI2,16031,740
Spokane County, WA1,996214,027
Green County, WI1,72328,052
Carbon County, MT1,71414,996
Cascade County, MT1,65944,330
Sauk County, WI1,63050,762
Madison County, MT1,61819,300
Columbia County, WI1,57443,719
Rock County, WI1,48473,143
Yellowstone County, MT1,47083,910
Dunn County, WI1,45736,011
Klickitat County, WA1,29421,637
McCone County, MT1,2206,759

Acreage counts take each boundary once: a condominium complex is one land parcel however many units it is sold as.

Every county: parcel data by county. States: Connecticut, District of Columbia, Florida, Maryland, Massachusetts, Montana, New Jersey, Washington, Wisconsin.