Cost to Own
United StatesIdahoBonneville CountyIona Population 2,882 Data vintage ACS 2023 5-Year Rates updated 2026-07-30

Total monthly cost of ownership

Cost to Own a Home in Iona, Idaho

A $364,000 home here costs

$2,572

per month, all in — with 20% down at today's 6.66% 30-year fixed rate.

A standard mortgage calculator would have told you $1,871. The real number is $701 higher every month — 37% more than the payment most buyers budget for.

Iona median: $364,400
Under 20% adds PMI
Freddie Mac PMMS
US average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $291,200 borrowed $1,871
Property tax0.487% effective rate for Iona itself $148
Homeowners insuranceIdaho averages $884/yr (NAIC), or 0.233% of home value $71
Electricity12.35¢/kWh — Idaho residential average, EIA $111
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $303
Total monthly $2,572

Iona against Bonneville County and Idaho

MeasureIonaBonneville County
Median home value$364,400$327,000
Median property tax$1,773$1,811
Effective tax rate0.487%0.554%
Median gross rent$1,284$1,054
Population2,882127,056

The weather behind that power bill

Iona sits in Bonneville County, which averages a high of 80.9°F in its hottest month and a low of 13.2°F in its coldest, with 17.32" of precipitation a year and 30% of it in a single three-month stretch. That climate drives 136 cooling and 8,450 heating degree days, which is what sets the $111 electricity line above.

See the full climate breakdown for Bonneville County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Bonneville County

Full Bonneville County cost breakdown · Every county in Idaho

Common questions

How much does it cost to own a home in Iona?

A $364,000 home in Iona, Idaho costs approximately $2,572 per month with 20% down at 6.66%. That is $1,871 principal and interest, $148 property tax, $71 homeowners insurance, $179 utilities and $303 set aside for maintenance.

What is the property tax rate in Iona?

Iona has an effective property tax rate of 0.487%, based on a median home value of $364,400 and median real estate taxes of $1,773. That is lower than the Bonneville County average of 0.554%.

What is the average home price in Iona?

The median owner-occupied home value in Iona, Idaho is $364,400, against $327,000 across Bonneville County.

Is it cheaper to rent or buy in Iona?

Median gross rent in Iona is $1,284 a month, against $2,572 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Iona — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance — NAIC average premium for Idaho.
  • Electricity price — EIA Electric Power Monthly Table 5.6.A.
  • Mortgage rate — Freddie Mac PMMS, refreshed weekly.
  • Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.

Full methodology