WHAT THE STATE DISTRIBUTION SAYSAcross Idaho’s 13 current published direct-evidence ZIP reports, Zillow’s current ZORI—an observed asking-rent index—runs from $1,121 in Rexburg to $2,338 in Meridian, a $1,217 difference, with a $1,746 median. The practical question is therefore not whether rents are “high” statewide, but whether a household’s income, desired unit, and tolerance for recent rent movement fit the relevant local reporting area. The distribution is bounded: it represents current published direct-evidence ZIP reports, not every Idaho ZIP, neighborhood, or rental property. Its wide range makes local comparison more useful than a single state-level label.
Current index affordability and observed renter burden answer different questions. The direct asking-rent-to-income measure ranges from 20.1% to 30.4%, with a 25.3% median; it compares the current ZORI level with ACS household income. The ACS share of renter households paying 30% or more of gross rent instead ranges from 23.9% to 56.1%, with a 47.6% median, and reflects survey-estimated renter outcomes. In Coeur d’Alene, annual income required to keep the current index at that threshold is $78,880, just above the area’s $77,864 median household income. In Kuna, the corresponding $89,560 is below $97,171. These measures are complementary, not substitutes: the income screen is current-index context, while burden is a five-year ACS ZCTA estimate whose statistical boundaries do not exactly match USPS delivery ZIPs.
Rent momentum also should not be collapsed into volatility. Direct monthly Zillow series show one-year changes from a slight −0.01% decline to 5.7% growth, around a 3.4% median; annualized volatility ranges from 2.5% to 3.8%, with a 2.9% median. Caldwell occupies the high-growth, low-volatility end of those ranges, a counter-signal to the assumption that faster gains must mean a less stable monthly path. Coeur d’Alene instead combines growth with the peak volatility and the deepest observed maximum drawdown, 7.9%. Recent growth, volatility, and drawdown describe different historical aspects of the direct series; none establishes a future rent path.
HUD comparison is a benchmark check rather than a market-rent verdict. Current ZORI levels equal 90.8% to 141.3% of the mapped HUD two-bedroom FMR/SAFMR standard, with a 110.3% median. That administrative standard is set by bedroom category and mapping rules; ZORI is an observed asking-rent index rather than an equivalent two-bedroom asking-rent measure. A ratio above or below the HUD figure therefore cannot establish that a listing is expensive, affordable, eligible, or comparable. For a property decision, verify the advertised rent, bedroom count, lease duration, utilities, concessions, availability, and address-specific program applicability. The benchmark and ZORI report universe are separate coverage systems, so each supplies context rather than a property-specific conclusion.
