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Crunching costs, sorting signals, rendering insights.
Crunching costs, sorting signals, rendering insights.
Premium market, smart picks: while Idaho trends above the national average, the gap between the most and least expensive cities here is wider than you'd think. And as far as the data shows, boise at index 99 is the standout — offering meaningful savings without leaving Idaho.
#1 Ranked: Boise — cost index 99, rent $1,703/mo, income $81,308
2 of 3 cities come in below the national cost-of-living average of 111
Data sourced from Census Bureau, Zillow, BLS, and Tax Foundation — current as of 2026
Premium market, smart picks: while Idaho trends above the national average, the gap between the most and least expensive cities here is wider than you'd think. And as far as the data shows, boise at index 99 is the standout — offering meaningful savings without leaving Idaho.
In plain English: a closer look at Boise: the cost index of 99 — this is the part where it gets real — breaks down to a Housing index of 99 (strongest category) and a Healthcare index of 100 (weakest). Median rent is $1,703/month — 10% below the national median — while household income sits at $81,308, meaning locals spend about 25% of income on rent. Moving on. That's within the recommended 30% threshold, though it doesn't leave much room.
Tax burden isn't just income tax. We combine three layers: state income tax (5.695% in Boise), combined state+local sales tax (6.02%), and effective property tax (0.56%). At 5.695% state income tax, the real differentiator becomes sales and property tax rates. On a $75,000 salary, the estimated take-home in #1 Boise is $53,438/year.
Worth a deeper look.
The state-level view adds helpful context here. Across Idaho, the average cost of living index is 101 — 10 points below the national median. Known for pandemic migration boom has reshaped prices, the state offers 3 tracked cities with median rents averaging $1,739/month — and yes, that's adjusted for the region — . That's $156 less than the national average of $1,895. That level of affordability is getting rarer every year.
Bottom line: Boise leads this ranking for clear, data-backed reasons — but the "best" city depends on your priorities. Click into any city below to see the full detail page with 12-month trend charts, profession-specific salary data, and a breakdown of all five cost categories. If you're seriously considering a move, use our salary calculator to model your specific income against these numbers (not adjusted for inflation, but still telling).
235,421 residents · Idaho
Boise earns its position at #1 through a combination that's hard to replicate. The 99 cost index sits 12 points below the national baseline, and the $81,308 median income means purchasing power here is genuinely above average. Homes list at $494,696 — $27,326 above the national median, reflecting the local market dynamics. On the cost side, Housing leads the way at 99, while Healthcare trails at 100 (which, to be fair, is a metric that favors smaller cities).
134,801 residents · Idaho
Dive into Meridian's numbers: cost index 114 — which, honestly, is lower than you'd expect here — (3 points above national average), rent $1,954/month, income $98,686, and a home price of $526,393. The city's cost profile isn't flat — Healthcare is the cheapest category at 103, while Housing runs 114. With 134,801 residents, it balances mid-size city convenience with manageable costs.
114,268 residents · Idaho
Why Nampa ranks #3: the numbers tell a clear story. At 91 on the cost index, residents save roughly 20% less than the typical American. Rent sits at $1,561/month while the median household pulls in $72,122/year. The Housing category is particularly strong at 91, though Healthcare (98) lags behind. Home prices average $408,658 — $58,712 below the national median.
| City | State Tax | Sales Tax | Property Tax | Est. Take-Home |
|---|---|---|---|---|
1Boise | 5.695% | 6.02% | 0.56% | $57,517 |
2Meridian | 5.695% | 6.02% | 0.56% | $57,517 |
3Nampa | 5.695% | 6.02% | 0.56% | $57,517 |
Total tax burden = state income tax rate + combined sales tax rate + effective property tax rate. We rank cities from lowest combined burden to highest. Keep in mind property tax and sales tax are local-level, so two cities in the same state can differ meaningfully. All data is sourced from federal agencies and verified research institutions. Cost of living indices are normalized to 100 (national median) using Zillow rent as the primary signal, with sub-category adjustments derived from regional BLS price data. Rankings are updated monthly as new data is released.
Boise ranks #1 in Idaho for this analysis with a cost index of 99 and median income of $81,308.
Our cost of living index uses real Zillow rent data as the foundation, indexed to 100 (national median). Sub-categories (housing, food, transport, utilities, healthcare) are derived from the overall index with regional adjustments. Data is updated monthly.
Boise (ranked #1) has a cost index of 99 and rent of $1,703/mo, while Nampa (ranked #3) has a cost index of 91 and rent of $1,561/mo — a 8-point difference in cost of living.
City data is refreshed monthly from Census Bureau population estimates, Zillow rent and home price indices, BLS salary data, and Tax Foundation tax rates. Last updated: 2026.
The median 1-bedroom rent in Boise is $1,703/month as of 2026, based on Zillow's Observed Rent Index. This is $192 below the national median of $1,895/month.
The median home price in Boise is $494,696, which is 6.1× the local median income. Most median-income households would stretch to buy at this ratio. The national median home price is $467,370.
Idaho has a 5.695% state income tax rate. Combined state and local sales tax averages 6.02%, and the effective property tax rate is 0.56%.
This ranking was generated using data current as of early 2026. Population and income data comes from the Census Bureau's American Community Survey (5-year estimates). Rent and home price data is from Zillow's monthly releases. Tax rates are from the Tax Foundation's 2025 edition. Rankings are refreshed monthly.