Knoxville vs Idaho Falls for Retirees (2026)
Scroll down for retirement income tax breakdown, healthcare estimates, and FAQ.
Full retirement cost breakdown
| Metric | Knoxville Tennessee | Idaho Falls Idaho |
|---|---|---|
| 1BR rent / month | $1,300 | $1,100Better |
| Median home price | $290KBetter | $310K |
| State income tax | NoneBetter | 5.8% |
| Sales tax (combined) | 9.5% | 6%Better |
| Monthly utilities | $168 | $142Better |
| Groceries index (US = 100) | 95Better | 96 |
| Est. healthcare / month | $435Better | $435 |
| Walk score (0–100) | 26 / 100Better | 18 / 100 |
| Overall COL index (100 = US avg) | 87Better | 87 |
Frequently asked questions
Which city is better for retirement — Knoxville or Idaho Falls?
Based on home prices, taxes on retirement income, walkability, and overall cost of living, Knoxville scores better for retirees. Median home prices are $290K in Knoxville vs $310K in Idaho Falls. The best choice still depends on climate, healthcare access, and proximity to family.
Is retirement income taxed in Knoxville or Idaho Falls?
Tennessee has no state income tax, meaning Social Security, pension, and retirement account withdrawals are not subject to state tax. Idaho has a 5.8% state income tax rate. For retirees, this difference can save thousands annually.
What is the estimated monthly healthcare cost in Knoxville vs Idaho Falls?
Based on national average retiree healthcare spending (~$500/month) scaled by each city's cost-of-living index, estimated monthly healthcare costs are approximately $435 in Knoxville and $435 in Idaho Falls. That's a difference of ~$0/month, or ~$0/year. Actual costs vary based on your Medicare plan, supplements, and health needs.
Can I afford to retire in Knoxville on a $50,000 annual income?
On a $50,000/year ($4,167/month) retirement income in Knoxville, rent alone would consume approximately 31% of your budget (1BR rent ~$1,300/mo) and healthcare another ~10%. That leaves roughly 59% (~$2,458/mo) for groceries, transportation, and other expenses. This is tight — a studio apartment or lower-cost neighborhood would help.
Which city is more walkable for retirees?
Knoxville has a higher walk score (26 vs 18 out of 100). Walkability is increasingly important for retirees who want to reduce car dependence — a score above 70 means most daily errands can be done on foot. Knoxville offers more independence without a car, which also reduces transportation costs.
$50K/year in Knoxville has the same purchasing power as $50K/year in Idaho Falls
Healthcare estimates based on national avg retiree spending (~$500/mo) scaled by COL index · State income tax rates from Tax Foundation · Data: Zillow, BLS, Numbeo · Q1 2026