Total monthly cost of ownership
Cost to Own a Home in Ammon, Idaho
A $337,000 home here costs
$2,421per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $1,733. The real number is $688 higher every month — 40% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Ammon against Bonneville County and Idaho
| Measure | Ammon | Bonneville County |
|---|---|---|
| Median home value | $336,500 | $327,000 |
| Median property tax | $1,955 | $1,811 |
| Effective tax rate | 0.581% | 0.554% |
| Median gross rent | $1,175 | $1,054 |
| Population | 18,496 | 127,056 |
The weather behind that power bill
Ammon 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 Ammon?
A $337,000 home in Ammon, Idaho costs approximately $2,421 per month with 20% down at 6.66%. That is $1,733 principal and interest, $163 property tax, $65 homeowners insurance, $179 utilities and $281 set aside for maintenance.
What is the property tax rate in Ammon?
Ammon has an effective property tax rate of 0.581%, based on a median home value of $336,500 and median real estate taxes of $1,955. That is higher than the Bonneville County average of 0.554%.
What is the average home price in Ammon?
The median owner-occupied home value in Ammon, Idaho is $336,500, against $327,000 across Bonneville County.
Is it cheaper to rent or buy in Ammon?
Median gross rent in Ammon is $1,175 a month, against $2,421 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 Ammon — 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.