Property Tax in Bonneville County, Idaho
In Bonneville County, Idaho, the typical homeowner pays $1,811 a year in property taxes on a home worth a median of $327,000. The figures on this page are the Census Bureau's published medians (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023), shown exactly as released.
What the Bonneville County numbers mean
A median is the middle household: half of owner-occupied households in Bonneville County pay more than $1,811, and half pay less. Your own bill is set by your home's assessed value, the exemptions you qualify for, and the local taxing districts your property sits in — so individual bills vary widely around the median.
Dividing the median tax by the median home value gives a derived effective rate of 0.55% for Bonneville County. It is an estimate built from two survey medians, not the county's official rate, but it is a fair way to compare the local tax burden with other counties where home values are very different.
Bonneville County by the numbers
| Measure | Bonneville County | Idaho | United States |
|---|---|---|---|
| Median real estate taxes paid | $1,811 | $2,006 | $2,969 |
| Median home value | $327,000 | $376,000 | $303,400 |
| Derived effective rate* | 0.55% | 0.53% | 0.98% |
| Median tax per month | $151 | $167 | $247 |
*Estimate derived from Census medians (tax ÷ value), not an official rate.
Bonneville County at a glance
- Median tax rank in Idaho: #11 of 44 counties
- Median home value rank in Idaho: #15 of 44
- Population rank in Idaho: #4 of 44 (127,056 residents)
- Population density rank: #6 of 44 (68 people per square mile)
- Land area rank in Idaho: #15 of 44 (1,865 sq mi, 2.3% of the combined county land area)
- Median tax as a monthly figure: $151; per $1,000 of home value: $0.55
How Bonneville County compares
Of the 44 Idaho counties with published data, 10 have a higher median property tax bill than Bonneville County's $1,811, putting the county at #11 in the state. Its bill is about 10% lower than the state median of $2,006 and about 39% lower than the national median of $2,969.
Rates and values pull in opposite directions: an expensive housing market can produce big bills at ordinary rates. Here the derived rate is 0.55%, versus 0.98% derived nationally, and the median home value ranks #15 within Idaho.
Some extra context for Bonneville County: the median bill works out to about $151 a month, and the derived rate equals roughly $554 of tax per $100,000 of home value. The county is home to 127,056 people — the #4 most populous county in Idaho, spread over 1,865 square miles, a density of about 68 people per square mile. Its median home value, $327,000, ranks #15 among the state's 44 counties with data.
Zooming out: of 3133 counties nationwide with published Census figures, only 1258 record a higher median tax bill than Bonneville County — it sits in the top 40% nationally. The county holds roughly 6.7% of Idaho's people. Its homes are worth less than the state norm (median $327,000 versus $376,000), and a decade at the derived rate of 0.55% adds up to about 5.54% of the median home's value in tax. The cheapest county in the state, Clark County, medians $592 — $1,219 less than Bonneville County per year.
Counties nearest Bonneville County in the Idaho ranking
| County | Median tax paid | Median home value | Derived rate* |
|---|---|---|---|
| Bannock County, ID | $1,918 | $267,200 | 0.72% |
| Madison County, ID | $1,813 | $365,000 | 0.50% |
| Valley County, ID | $1,778 | $599,500 | 0.30% |
| Jefferson County, ID | $1,775 | $335,000 | 0.53% |
Bonneville County and its population peers
Population is a useful lens on these figures, so the table below sets Bonneville County beside the counties closest to it in population anywhere in the country — communities of a similar scale operating under different state and local tax systems. Ranked by median tax paid within this peer group of 9, Bonneville County's $1,811 bill is #3 of 9.
| County | Population | Median tax paid | Median home value | Derived rate* |
|---|---|---|---|---|
| Ascension Parish, LA | 128,593 | $1,419 | $265,300 | 0.54% |
| Rapides Parish, LA | 128,470 | $1,024 | $179,100 | 0.57% |
| Sebastian County, AR | 128,448 | $1,081 | $166,000 | 0.65% |
| Berkshire County, MA | 128,047 | $3,891 | $283,800 | 1.37% |
| Fayette County, PA | 126,967 | $1,516 | $126,900 | 1.20% |
| Chautauqua County, NY | 126,329 | $2,846 | $119,300 | 2.39% |
| Berkeley County, WV | 126,165 | $1,353 | $248,000 | 0.55% |
| Faulkner County, AR | 126,001 | $1,201 | $211,300 | 0.57% |
The closest population match is Fayette County, Pennsylvania (126,967 residents), where the median real estate tax paid is $1,516 on a median home value of $126,900 — $295 more than Bonneville County pays.
Inside Idaho itself, the counties closest to Bonneville County in population are Canyon County (242,405 residents, median tax $1,996 on a median value of $350,300); Kootenai County (177,736 residents, median tax $2,203 on a median value of $467,400); Twin Falls County (92,121 residents, median tax $1,951 on a median value of $292,700); Bannock County (88,457 residents, median tax $1,918 on a median value of $267,200). Same state, same broad tax framework — yet the median bills still differ, because assessed values and the mix of county, municipal and school-district rates are set locally.
How the tax is worked out
The bill is built in stages. First the assessor puts a market value on the property. Exemptions — a homestead exemption above all — then reduce the taxable amount. Finally the combined local rate is applied. To see the scale: at the county's derived rate of 0.55%, each $100,000 of value corresponds to about $554 of tax a year, and a $400,000 home to roughly $2,216. Real bills use the official assessment and district rates, not this derived figure, so treat the example as a sense of scale only.
Illustrative bills in Bonneville County at the derived rate
The derived rate of 0.55% is only an estimate built from medians, but applying it to different home values gives a sense of scale for Bonneville County — and a quick way to compare with the state derived rate of 0.53% and the US figure of 0.98%:
| Home value | Illustrative tax / year | Per month |
|---|---|---|
| $150,000 | $831 | $69 |
| $250,000 | $1,385 | $115 |
| $350,000 | $1,939 | $162 |
| $500,000 | $2,770 | $231 |
| $750,000 | $4,155 | $346 |
Illustration only: real bills are computed from the assessed value, exemptions, and the combined rates of the property's actual taxing districts.
Checking your assessment in Bonneville County
Most successful appeals are won on facts, not arguments. Start with the property record card held by the Bonneville County assessor: wrong square footage, an extra room, or a missing homestead exemption are common and fixable. Next, line your assessed value up against recent sales of genuinely similar homes nearby. Many disputes end at an informal conversation with the assessor's office; if yours does not, file the formal appeal with the review board named on your notice before its deadline, evidence attached, and keep paying the bill in the meantime so penalties do not build up.
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Frequently asked questions
What is the median property tax in Bonneville County, Idaho?
The median real estate tax paid in Bonneville County, Idaho is $1,811 per year, on a median home value of $327,000 (US Census Bureau, American Community Survey (ACS) 5-year estimates, 2023).
What is the effective property tax rate in Bonneville County, Idaho?
On a derived basis, 0.55%: the county's median tax bill of $1,811 divided by its median home value of $327,000. Because it is calculated from two survey medians, read it as a comparison estimate rather than an official rate.
How does Bonneville County compare with the rest of Idaho?
By median taxes paid, Bonneville County stands at #11 among the 44 Idaho counties the Census publishes figures for. Its $1,811 median bill is about 10% lower than the state median ($2,006), and 10 counties in the state record a higher median.
How are property taxes calculated in Bonneville County, Idaho?
Three steps produce the bill: an assessment of market value by the local assessor, a reduction for exemptions you qualify for (a homestead exemption is the common one), and multiplication by the combined rates of the county, municipality, school district and any special districts covering the property. The median result in Bonneville County is $1,811 of tax on a $327,000 median home value.
Can I appeal my property tax assessment in Bonneville County, Idaho?
You can. Pull your property record card from the Bonneville County assessor, verify its details, and compare the assessed value against similar homes that sold recently. If the value still seems too high, submit a formal appeal to the board named on your notice before the stated deadline — usually a 30-to-90-day window.