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Ada County, ID

Rent vs Own in Ada County, Idaho

Buying the median Ada County home costs roughly $2,961/mo against a $1,655/mo HUD rent, ownership runs well above the rent benchmark here, so the page focuses on why the stack is so heavy. Owner-occupied homes: 143,399.

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Renting is cheaper in Ada County

Ownership works out near $2,961/mo while a comparable 2-bedroom rents for $1,655/mo - a wide monthly miss for buyers. That is a $1,306/mo difference.

Based on 20% down, 6.5% rate, 30-year mortgage. Adjust below.

What This Data Tells Us About Renting vs Owning in Ada County

Primary driver

Ownership sits far above the rent benchmark

The $512,300 median home in Ada County carries $2,655/yr in tax at 0.52%. Against HUD's $1,655/mo 2-bedroom rent, the ownership stack (~$2,961/mo) is a wide miss - roughly $1,306/mo. Here the useful question is which line item (price, tax, or insurance) dominates the overage, not whether a small assumption change closes it.

Decision signal 2

The purchase price is the larger hurdle

Median household income is $91,502, so the 5.6x home-price-to-income ratio is the binding constraint here, even before the 2.9% of income that goes to property tax. Buyers in this band usually need a larger down payment or a longer commute to a cheaper ZIP before the monthly ownership math clears.

Decision signal 3

HUD moved the rent benchmark down

HUD cut its 2-bedroom Fair Market Rent for Ada County from $1,838/mo in FY2025 to $1,655/mo in FY2026: it decreased by $183/mo (-10.0%). A falling benchmark narrows the case for buying here, and it usually reflects HUD re-estimating the local market rather than existing rents being cut.

Decision signal 4

The county sits near the state middle

Using the assumptions above, Ada County ranks 29 of 44 Idaho counties for buy-vs-rent value (rank 1 = the best relative deal for buying). It sits ahead of 15 other Idaho counties on this measure.

Methodology & disclaimer

This calculator is for informational purposes only and is not tax, legal, or financial advice. Property tax figures come from the U.S. Census Bureau ACS 5-Year Estimates and rent figures come from HUD Fair Market Rents; both describe area medians, not individual transactions. Insurance is estimated at 0.35% of home value annually and closing costs, maintenance, HOA, and PMI are not included. Consult a licensed mortgage, tax, or real-estate professional before making a buy-or-rent decision based on these numbers.

Monthly Cost Breakdown

Estimated Monthly Ownership
$2,961
Mortgage (P&I) $2,590
Property Tax $221
Insurance (est.) $149
Monthly Rent (2-BR FMR)
$1,655
Studio$1,170
1-Bedroom$1,381
2-Bedroom$1,655
3-Bedroom$2,318
4-Bedroom$2,772

Adjust Your Scenario

Affordability Context

Median Household Income
$91,502
$7,625/mo
Home Price / Income
5.6x
Expensive (>5x)
Tax-to-Income Ratio
2.9%
National benchmark: 2-4%

Who actually pays it here

Even with the loan gone, the largest group of Ada County owners still owes $3,000 or more every year - a recurring holding cost of a few hundred dollars a month, which is why "paid off" understates the real cost of keeping property here.

Ada County matches the national pattern: six-figure earners between $100,000 and $200,000 account for more of these write-offs than any other local group.

When the ownership stack already sits far above HUD rent, that annual bill is less a tie-breaker and more confirmation that holding costs stay material long after the loan is gone.

Bill bands are Census ACS counts of owner-occupied homes without a mortgage. Income brackets are IRS Statistics of Income county data for tax year 2022, counted over FILERS reporting real-estate taxes on Schedule A, which is a smaller group than homeowners: most filers take the standard deduction.

Nearby Counties

Canyon County
Home: $390,000 Tax: $2,011/yr
Kootenai County
Home: $518,700 Tax: $2,267/yr
Bonneville County
Home: $368,800 Tax: $1,858/yr
Twin Falls County
Home: $337,900 Tax: $2,066/yr
Bannock County
Home: $300,700 Tax: $1,920/yr
Bonner County
Home: $487,900 Tax: $1,847/yr

Frequently Asked Questions

Is it cheaper to rent or buy in Ada County, Idaho? ▼
Owning the median Ada County home is a wide miss versus HUD's 2-bedroom rent (about $1,306/mo more) on the standard stack. Treat this as a tenure/equity decision first; the cash-flow comparison alone will not favour buying here.
What is the average rent in Ada County? ▼
HUD prices a 2-bedroom unit at $1,655/mo here. Sizing up matters: going from a studio to a 4-bedroom adds about $1,602/mo, so the per-bedroom jump is worth checking against your actual space needs before assuming the 2-BR figure applies to your situation.
How much house can you afford in Ada County? ▼
On the common 3x-income guideline, a $91,502 household here can afford up to $274,506 -- about $237,794 short of this county's $512,300 median home. That gap is typically closed with a larger down payment, dual incomes, or a longer search outside the median price band.
What is the median home price in Ada County? ▼
$512,300, per the Census Bureau's ACS 5-Year Estimates. The property tax on that value works out to roughly 0.52% a year, in line with typical rates for the area.
Is rent going up or down in Ada County? ▼
HUD's 2-bedroom Fair Market Rent figure has fallen 10.0% between the FY2025 and FY2026 publications, the two most recent years tracked here.
How does Ada County compare to other Idaho counties for renting vs buying? ▼
Out of 44 Idaho counties ranked here on buy-vs-rent value, Ada County lands at spot 29, roughly in the middle of the pack statewide. The <a href="/states/idaho">Idaho state page</a> lists every peer county's tax bill beside this one.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from the U.S. Census Bureau (American Community Survey). See our methodology for details. Retrieved and formatted by PlainPropertyTax

Source: U.S. Census Bureau, Government Finances State and local property tax revenue by jurisdiction · 2025

Verify with HUD →