Washington County, IA Property Taxes (2026)

Washington County owners pay a median of $2,688 a year on a median home value of $199,600, an effective rate of 1.35%. That's the 47th-highest rate of 99 Iowa counties with Census data, above the Iowa county median of 1.34%.

Updated October 2026 · Data: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023)

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Effective tax rate

1.35%

47th highest of 99 in IA

Median annual bill

$2,688

~$224/month

Median home value

$199,600

Iowa county median

1.34%

Effective rate

What a protest could save you in Washington County

Enter the market value from your appraisal notice. We apply Washington County's 1.35% effective rate and a 10–15% reduction, the typical range for successful protests.

$
Est. annual tax
$2,695
Savings at 10–15% off
$269–$404
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Washington County vs. Iowa vs. U.S. property tax rates

Washington County1.35%
Iowa county median1.34%
U.S. county median0.84%

Key stat: Washington County's effective property tax rate is 1.35%, vs. 1.34% for the median Iowa county and 0.84% for the median U.S. county. It ranks 47th of 99 in Iowa. Effective rate = median tax bill ÷ median home value, so it already reflects typical exemptions. (Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023))

How to appeal your property taxes in Washington County

  1. 1

    Review your assessment notice

    Check the assessed value from the Washington County Assessor. Compare it to recent sales of similar homes nearby.

  2. 2

    File your appeal before the deadline

    The Washington County deadline is April 25 – May 5. Missing it means waiting until the next assessment year.

  3. 3

    Gather evidence

    Recent comparable sales, photos of condition issues, repair estimates or an independent appraisal.

  4. 4

    Present your case

    Submit evidence or attend a hearing with the County Assessor.

  5. 5

    Get your decision

    If you win, your assessed value and bill go down. On a $2,688 bill, 10–15% off is $269–$403 a year.

Want help with it?

TaxDrop builds your case from comparable sales data.

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Property tax exemptions in Iowa

Iowa homeowners may qualify for exemptions that reduce taxable value. Check with the Washington County Assessor for amounts.

Homestead exemption

For your primary residence. Reduces the value used to calculate your bill.

Senior / over-65

Many states add an exemption or freeze for owners 65 and older.

Disability

For homeowners with qualifying disabilities, often similar to the over-65 benefit.

Veterans

Disabled veterans may get partial or full exemptions depending on rating.

Frequently Asked Questions

What is the property tax rate in Washington County, Iowa?
The median effective property tax rate in Washington County is 1.35%: a median annual bill of $2,688 on a median home value of $199,600. That's the 47th-highest rate of 99 Iowa counties with Census data. Your own rate depends on which city, school district and special districts you're in. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2019–2023).
How much are property taxes in Washington County?
The median Washington County property tax bill is $2,688 a year, about $224 a month, compared with a Iowa county median of $1,976.
What is the deadline to appeal property taxes in Washington County?
The deadline to appeal in Washington County is April 25 – May 5. Missing it means waiting until the next assessment cycle.
Is Washington County a high property tax area?
Washington County's 1.35% effective rate is above the Iowa county median of 1.34% and above the U.S. county median of 0.84%. That's the 47th-highest rate of 99 Iowa counties with Census data.
Can TaxDrop help lower my Washington County property taxes?
TaxDrop analyzes your property against local comparable sales and helps you appeal your assessment.

Property taxes in nearby counties

Keokuk County

Rate: 1.33%

Median bill: $1,491

Johnson County

Rate: 1.56%

Median bill: $4,587

Louisa County

Rate: 1.27%

Median bill: $1,752

Henry County

Rate: 1.61%

Median bill: $2,394

Jefferson County

Rate: 1.49%

Median bill: $2,397

Iowa County

Rate: 1.35%

Median bill: $2,560

Muscatine County

Rate: 1.55%

Median bill: $2,667

Des Moines County

Rate: 1.53%

Median bill: $2,097

← All 99 Iowa counties

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