Custer (ID) Investor Pulse Report (2026-Q1)

Investor ownership in Custer County, ID is exceptionally high, with landlords holding 1,521 single-family properties, which constitutes 68.0% of the total 2,237 SFRs in the market.

The investor landscape is overwhelmingly dominated by 1,829 individual landlords who own 1,312 properties (86.3% of the investor portfolio), compared to 252 company landlords owning 276 properties (18.1%).

Cash is the preferred acquisition method, with 1,170 properties (76.9%) owned outright, far surpassing the 351 properties (23.1%) that are financed. This indicates a market with high liquidity and less reliance on traditional mortgage financing.

The portfolio is almost exclusively dedicated to rentals, as 1,516 of the 1,521 investor-owned properties (99.7%) are classified as non-owner-occupied. This signals a strong rental market and a clear focus on investment returns over personal use.

The ratio of individual to company landlords is approximately 7.3 to 1 (1,829 vs 252), reinforcing the grassroots nature of real estate investing in this county.

Investor acquisition pricing in Custer County, ID shows extreme volatility and deviates from the common narrative of landlords consistently paying less than homeowners. For example, in 2025-Q3, landlords paid an average of $425,899, a $127,580 (42.8%) premium over traditional homeowners.

This trend reversed sharply from the prior quarter, when in 2025-Q2 landlords secured properties for $442,822, representing a significant $185,672 (29.5%) discount compared to homeowners.

The price gap is not narrowing or widening in a predictable pattern; instead, it fluctuates dramatically from quarter to quarter, suggesting that deal specifics and property types may play a larger role than broad market-timing strategies.

Overall property values have risen substantially since the pandemic boom. The average landlord acquisition price in 2025 was $384,843, a 31.7% increase from the 2020-2023 average of $292,163.

In the most recent quarter with purchases, 2026-Q1, landlords acquired properties at an average price of $276,265, though homeowner comparison data was unavailable for that period.

Investor activity completely dominated the market in Q4 2025, with landlords purchasing all 5 of the 5 SFR properties sold, capturing 100.0% of the market share.

The entirety of this purchasing activity came from the smallest investors, as mom-and-pop landlords (Tiers 01-04) accounted for 100.0% of acquisitions.

Notably, all 5 properties were purchased by 5 different entities in the single-property tier. This indicates that all Q4 activity was driven by new landlords entering the rental market for the first time.

There was zero purchasing activity from mid-size landlords (Tiers 05-08) or institutional investors (Tier 09), underscoring the grassroots nature of market growth.

The low transaction volume highlights a tight market where new inventory is exclusively being absorbed by small, local investors rather than large-scale operations.

The distribution of ownership in Custer County, ID is overwhelmingly concentrated among small-scale investors. Landlords with portfolios of 1-10 properties (Tiers 01-04) own 99.9% of all investor-held SFRs.

First-time or single-holding landlords are the foundation of the market, with the single-property tier alone comprising 1,332 properties, or 84.4% of the entire investor portfolio.

The next tiers show a steep drop-off: two-property landlords own 9.2% of the portfolio (146 properties), and those with 3-5 properties own 5.7% (90 properties).

In stark contrast, institutional investors with 1,000+ properties have a minimal footprint, owning just one property in the entire county, which represents only 0.1% of investor-owned housing.

This ownership structure defies the narrative of corporate landlord dominance and points to a market sustained entirely by local, small-portfolio individuals and families.

While individual landlords form the base of the market, company ownership becomes the strategy for growth at a specific portfolio size. In the 6-10 property tier, companies own 9 properties, accounting for 90.0% of the assets in that category.

This is a dramatic shift from smaller tiers, where individuals are the clear majority. Individuals own 84.4% of single-property portfolios, 78.4% of two-property portfolios, and 80.0% of 3-5 property portfolios.

The data suggests a distinct crossover point: investors may start as individuals but adopt a company structure once their portfolio grows beyond five properties, likely for liability and management purposes.

This pattern reveals different operational strategies based on scale within the Custer County investor community.

Across all tiers, individuals own 1,355 properties compared to 275 for companies, but the concentration of company ownership in a higher tier points to a strategy for professionalization and scaling.

Investor ownership in Custer County is highly concentrated geographically. The top three zip codes by property count, 83226 (565 properties), 83251 (464 properties), and 83278 (356 properties), collectively account for 1,385 properties, or 91.0% of the total investor portfolio.

The areas with the highest investor ownership *rate* are not always the same as those with the highest *count*. Zip code 83278 leads the county with an 80.7% investor ownership rate, meaning more than four out of five SFRs are investor-owned.

Other areas with high investor penetration include 83253 (70.8%) and 83251 (70.2%), indicating these are prime sub-markets for rental properties.

In contrast, 83255 has one of the lower concentrations, with a 43.9% rate from 43 investor-owned properties.

This data from a market report allows investors to pinpoint specific zip codes where rental demand and investment opportunities are most condensed.

Transaction data reveals a clear trend of portfolio accumulation among landlords in Custer County. In 2025, they were strong net buyers, with 68 purchases versus only 7 sales, a buy-to-sell ratio of 9.7x.

This pattern of net buying has been consistent, with Q3 2025 showing 21 buys and 2 sells, and Q2 2025 showing 12 buys and 1 sell. The trend continued from 2024, which saw 32 buys and only 2 sells.

The behavior of the institutional tier provides a stark contrast. In 2025, the single 1000+ tier investor in the county was neutral, with one acquisition and one disposition, indicating a stable position rather than active growth.

This divergence shows that the market's expansion is being driven entirely by smaller investors, while the largest player remains on the sidelines.

The high net buyer activity signals strong confidence in the local rental market and a long-term hold strategy among the dominant mom-and-pop investor base.

In Q4 2025, the transaction market was exclusively an investor's market, with landlords participating in all 5 of the 5 total SFR transactions (100.0% share).

Activity was concentrated at the entry level of the market. The single-property tier was responsible for all 5 transactions, demonstrating that new entrants are the primary drivers of market activity.

The average purchase price for these new mom-and-pop investors was $276,265.

Notably, 0% of these purchases were from other landlords. This indicates that the market expansion is happening through the acquisition of properties from traditional homeowners or new construction, rather than churn within the existing investor pool.

There were no transactions recorded for mid-size or institutional tiers, reinforcing that the transactional market, like the ownership market, is a small-investor game in Custer County.