Skip to main content
LiveWhere us
Idaho

Cost of living in Washington County, ID

Estimated monthly cost
$2,663/mo
for a single person, all categories combined

Population 10,866 · Last updated May 21, 2026

Cost breakdown

Single person, by category, per month.

Rent $790 30%
Healthcare $480 18%
Federal tax $364 14%
Groceries $331 12%
Transport $320 12%
Energy $162 6%
State tax $156 6%
Water $60 2%

Rent in Washington County

Fair Market Rents by bedroom count.

Studio
$784
per month
1 bedroom
$790
per month
2 bedroom
$1,036
per month
3 bedroom
$1,311
per month
4 bedroom
$1,740
per month

Source: HUD FMR FY2025

Income and earnings in Washington County

Annual earnings figures from the Census ACS.

Household income
$53,608
per year
Individual earnings
$32,354
per year
Per capita
$27,769
per year

Source: ACS 2019-2023 5-Year.

Home values in Washington County

Average values reported by homeowners.

Average home value
$250,300
Annual property tax
$1,316

Source: ACS 2019-2023 5-Year

Energy costs in Washington County

Estimated monthly electricity and gas costs.

Electricity
$110
per month · 11.6¢/kWh
Natural gas
$52
per month
Annual total
$1,944
per year

Source: EIA

Healthcare in Washington County

Insurance premiums and coverage rates.

Individual premium
$480
per month
Family premium
$1,350
per month
Uninsured rate
9.8%

Source: ACS + national avg. Marketplace benchmark premiums are second-lowest Silver plan estimates and do not reflect employer plans, subsidies, or out-of-pocket costs. This is not healthcare advice.

Taxes in Washington County

State and local tax rates for Idaho.

State income tax
5.8%
Flat rate
State sales tax
6.0%
Combined sales tax
6.0%
incl. average local

Tax rates change. Consult a qualified tax professional for advice on your specific situation. This is not tax advice.

Transportation in Washington County

Commute patterns and estimated costs.

Average commute
18.3 min
Drive alone
73.1%
Public transit
0.5%
Work from home
6.6%

Source: ACS

Monthly cost estimates for Washington County

What it costs to live in Washington County each month.

Single person
$2,663
per month
  • Rent $790
  • Energy $162
  • Water $60
  • Groceries $331
  • Transport $320
  • Healthcare $480
  • Federal tax $364
  • State tax $156
Couple
$3,939
per month
  • Rent $1,036
  • Energy $194
  • Water $70
  • Groceries $549
  • Transport $420
  • Healthcare $864
  • Federal tax $547
  • State tax $259
Family
$6,347
per month
  • Rent $1,311
  • Energy $243
  • Water $85
  • Groceries $832
  • Transport $520
  • Healthcare $1,350
  • Childcare $1,200
  • Federal tax $547
  • State tax $259

Frequently asked questions about Washington County

Common questions about cost of living, rent and salary.

What is the average rent in Washington County?

In Washington County, ID, a one-bedroom apartment averages $790 per month, a two-bedroom averages $1,036 per month, a three-bedroom averages $1,311 per month, according to HUD Fair Market Rent data.

What is the average salary in Washington County?

In Washington County, ID, the average household income is $53,608 per year and individual earnings for full-time workers average $32,354 per year, according to U.S. Census Bureau data.

What is the cost of living in Washington County?

The estimated cost of living in Washington County, ID is approximately $2,663 per month for a single person, $3,939 for a couple, $6,347 for a family. This includes rent, utilities, groceries, transportation, healthcare, and taxes.

What is the sales tax rate in Washington County?

The combined sales tax rate in Washington County, ID is 6.03%, which includes the Idaho state rate of 6.00% plus an average local rate of 0.03%.

Is Washington County an affordable place to live?

Based on the data, a single person in Washington County, ID would need approximately $2,663 per month to cover rent, utilities, food, transport, healthcare, and taxes. The average household income is $53,608 per year ($4,467 per month). Washington County has a moderate cost of living relative to local earnings.

How much does healthcare cost in Washington County?

The ACA marketplace benchmark premium in Washington County, ID is approximately $480 per month for an individual. Approximately 9.8% of residents are uninsured. Actual costs vary based on employer coverage, plan type, and individual circumstances.

What are house prices in Washington County?

The average home value in Washington County, ID is $250,300, with average annual property taxes of $1,316, according to U.S. Census Bureau data.

How does Washington County compare to other areas?

You can compare Washington County, ID with any other US county using our comparison tool at /compare. Washington County is in Idaho.

Other counties in Idaho

Browse the full list of counties in Idaho, ranked by cost of living.

See all counties in Idaho

Compare Washington County with another area

Put two counties side by side to see how rent, taxes and everyday costs stack up.

About this data

All figures on this page come from official U.S. government sources, listed below.

  • HUD FMR FY2025
  • ACS 2019-2023 5-Year
  • EIA
  • ACS + national avg
  • ACS
  • USDA + BEA RPP
Methodology All data sources