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Ada County, Idaho property search

Search an address or an owner in Ada County, Idaho with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 207,858 lots are mapped here, covering 708,607 acres. 41,482 of them are held by institutions rather than by individuals.

Farmers and landowners in Ada County received $805,000 in federal farm program payments in 2025, paid to 42 recipients. 4,886 acres of agricultural land here are disclosed as foreign-held, the most by owners from United Kingdom. Crop insurance paid $587,000 in claims for the 2024 crop year.

207,858
Lots mapped
708,607
Acres
41,482
Institutional

Largest landowners in Ada County

Largest landowners by acreage in Ada County, Idaho
OwnerParcelsAcres
STATE OF IDAHO (DEPT OF LANDS)17539,310
STATE OF IDAHO (FISH & GAME DEPT)9511,725
BLACK CREEK LP798,250
CITY OF BOISE (AIR TERMINAL)1866,377
B & L COMPANY LLC666,166
CITY OF BOISE (BOISE PARKS & RECREATION)4146,078
D Y BLACKS CREEK RANCH LLC365,446
GWC CAPITAL LLC645,203
CS PROPERTY DEVELOPMENT LLC474,853
CITY OF BOISE (PUBLIC WORKS)414,588

Companies, trusts and public agencies, ranked by acres held under the name on the assessor's file. Private individuals are not ranked. Largest landowners in Idaho

Federal farm payments in Ada County

$805K
Paid in 2025
42
Recipients
Federal farm program payments by program in Ada County, Idaho, 2025
ProgramPaid
Emergency Commodity Assistance Program$570K
Marketing Assistance for Specialty Crops$131K
Supplemental Disaster Relief Spec Crops$79K
Supplemental Disaster Relief Non-Spec Crops$24K
Agricultural Risk Coverage Program - County$903

USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county

Foreign-held farmland in Ada County

4,886
Acres disclosed
8
Holdings
Foreign-held agricultural land by country in Ada County, Idaho, 2024
CountryAcres
United Kingdom4,248
No predominant country code208
No foreign investor listed205
Germany202
Canada23

Largest disclosed holders

Largest foreign holders of agricultural land in Ada County, Idaho
Holder (country)Acres
Blacks Creek Energy Center, LLC (UNITED KINGDOM)4,248
Powers Butte Energy Center, LLC (999 - NO PREDOMINANT COUNTRY CODE)208
OWYHEE RANGE FARMS, LLC (998 - NO FOREIGN INVESTOR LISTED)205
CANUS-F.C.I. LTD. PARTNERSHIP (CANADA)23

USDA Agricultural Foreign Investment Disclosure Act filings, holdings at the end of 2024. Only disclosed interests are counted. See foreign-owned farmland by county

Crop insurance in Ada County

68
Policies
105,127
Insured acres
$587K
Claims paid
0.68
Loss ratio
Crop insurance claims by crop in Ada County, Idaho, 2024
CropClaims
Pasture,Rangeland,Forage$357K
Hybrid Sweet Corn Seed$66K
Dry Beans$62K
All Other Crops$56K
Wheat$31K

USDA Risk Management Agency Summary of Business, 2024 crop year.

Conservation and the power grid

57
Substations
230 kV
Highest voltage

Conservation Reserve Program acres under contract (USDA FSA). Substations in service, from a public copy of the federal HIFLD layer.

Find out who owns a property in Ada County by address, free, or work out a lot's acreage.

Nearby counties in Idaho

  • Canyon County100,818
  • Elmore County20,973
  • Boise County12,406
  • Payette County13,258
  • Owyhee County9,934
  • Gem County11,836
  • Camas County4,607
  • Washington County11,033

All Idaho counties

Ada County last published these records on May 3, 2023. Assessment records, not a survey.