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
Parcels217,751Total
Record Of Survey14,967Total
CPF8,351Total
Subdivisions7,552Total
Developments622Active
-Entitlement Lots8,752Active
-Approved Lots18,529Active
-Final Lots6,116Active
Building Permits1,424YTD
Vacant Lots6,319Buildable
Instruments4,994,977Total
News161,006Total

Newsletter and latest features:

Subdivisions

GRUNDY RANCH SUBDIVISION
2025-06-26
WHISPER MEADOWS SUBDIVISION NO 1
2025-06-26
RETAIL ONE SUBDIVISION
2025-06-26
Theodore Condominiums
2025-06-18
Danish Flats Subdivision
2025-06-18

Developments

SUB24-00025: Lindenville Townhomes Subdivision
2025-06-18
SUB24-00009: Tranquility Subdivision
2025-06-18
SUB24-00039: 5600 N PIERCE PARK LN
2025-06-18
SUB24-00045: Collister Village Subdivision
2025-06-17
202401978-S-PR: Woodforest Heights Subdivision
2025-06-16

News

Ada County Assessor Street Name Review
2035-01-22
McAlister
2025-05-01
McAlister
2025-05-01
McAlister
2025-05-01
McAlister
2025-05-01

Building Permits

BLD25-00603: New Construction
2025-06-30
BLD25-00602: New Construction
2025-06-30
BLD25-01202: New Construction
2025-06-30
BLD25-01200: New Construction
2025-06-30
BLD25-01369: New Construction
2025-06-25

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