
Star · Ada County
The Treasure Valley's growth corridor.
Where new construction is remaking what used to be the western edge. Entry-level flip opportunities, infill potential, and a growth rate that has outpaced forecast for three consecutive years.
Population & Growth
Population · 2025 est.
21,800
Ada County · COMPASS 2025
10-year growth
+174.6%
Fastest in the Treasure Valley · COMPASS
Median sale price · Mar 2026
$585,000
-8.6% YoY · Redfin
Days on market · Mar 2026
152 days
Highest in the Valley · Redfin
Buyer's-market context
Star's 152-day average DOM is the highest among the nine Treasure Valley cities, reflecting a buyer's market at this price point. Sellers are negotiating from a weaker position than in previous years. Model conservative absorption timelines on flip and new-build dispositions.
Star is the fastest-growing small city on the Valley's west side. New-construction velocity has outpaced forecast three years running. The growth pattern is suburbanization of Middleton/Eagle spillover combined with price-sensitive buyer relocation from Meridian.
Flips
Flip ARV range
$480K–$620K
When product appears
Star flip product is limited. Most stock is either new or under 15 years old. Basis is meaningfully above Nampa/Caldwell but below Meridian.
SFH Rentals
Star SFH rental product is thin but demand is strong. 3BR averages track Meridian's. Vacancy is tight.
Infill & New Construction
Star's infill opportunity is the parcels that were overlooked in the first growth wave. We track lot-split-viable corners and strategic corridor-adjacent parcels.
Land & Annexation
Most of Star's near-term pipeline is annexation-adjacent parcels. We've represented acquisitions in the 24-to-36-month pre-annexation window where basis clears at 55–70% of post-annexation comparable.
Lot Splits, ADUs & Duplexes
Ordinance 428-2025 (December 2025) governs Star ADUs. Maximum size: 800 square feet or 50% of primary. Owner-occupancy requirement removed. Setbacks: 5 feet rear and side.
Much of Star's active pipeline involves pre-annexation parcels. Confirm jurisdiction (Star city limits vs. Ada County R-RP zone) before permitting.
Data
Star in context. Ada County, ten years.
Population series 2015 through 2025 from the U.S. Census Bureau vintage files and COMPASS 2025. Price figures from Redfin and Zillow as of March 2026.

Source: U.S. Census vintage 2023 and COMPASS 2025.

Source: Redfin and Zillow, March 2026. Point-in-time figures, not annualized.
Last updated: April 2026.
Ready when you are
Ready to look at Star?
Growth corridor, new construction, annexation upside.