Ada County, ID

Ada County is located in the Southwest region of Idaho. The 2020 Census lists Ada County's population as 494,967. Our latest data shows that Ada County platted 4351 New Residential Subdivision Lots in 2024. See the table to the right for the information landproDATA.com maintains in Ada County.

Data Type Features
Parcels219,616Total
Record Of Survey16,368Total
CPF8,600Total
Subdivisions7,934Total
Developments708Active
-Entitlement Lots7,397Active
-Approved Lots19,766Active
-Final Lots7,495Active
Building Permits3,936YTD
Vacant Lots6,142Buildable
Instruments4,996,682Total
News161,366Total

Newsletter and latest features:

Subdivisions

21608
2025-12-04
21604
2025-12-04
21601
2025-12-04
21597
2025-12-04
21592
2025-12-04

Developments

202502194-S: Vigneto Ridge Estates Subdivision
2025-12-04
202400187-S-F: Peafowl Ridge Subdivision
2025-12-04
SP-25-02: Sunterra Condominiums
2025-12-04
25-03-CPF: Kuna Mora Industrial
2025-12-02
H-2015-0026: CITADEL STORAGE AT TEN MILE
2025-11-20

News

Ada County Assessor Street Name Review
2035-01-22
Meridian Historic Preservation Commission Agenda
2025-08-28
Meridian Historic Preservation Commission Agenda Packet
2025-08-28
Boise Hearing Examiner Agenda Packet
2025-08-27
McAlister
2025-05-01

Building Permits

50886: New Construction
2025-12-05
50889: New Construction
2025-12-05
50899: New Construction
2025-12-05
50906: New Construction
2025-12-05
50919: New Construction
2025-12-05

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