Property tax in King William County, Virginia
The median property tax bill in King William County, Virginia is $1,729 a year, which is about 0.55% of the county's median home value of $315,700. That effective rate is lower than the typical Virginia county (0.6%) and lower than the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.
Estimate the property tax on a home in King William County
Enter a home's market value for a ballpark at King William County's average effective rate of 0.55% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.
Estimated property tax: $1,736 / year
Property tax in King William County at a glance
| Measure | Value |
|---|---|
| Median annual property tax | $1,729 |
| Median home value | $315,700 |
| Effective tax rate | 0.55% |
| Typical Virginia county rate | 0.6% |
| National median county rate | 0.81% |
Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.
How does King William County compare in Virginia?
Among Virginia's 133 counties, King William County has the 90th highest effective property-tax rate: 89 rank higher and 43 rank lower. That is on the lower side for Virginia. Nationally, it ranks 2471st of 3135 US counties by effective rate. See every Virginia county ranked.
How much do homeowners in King William County actually pay?
The median is only the middle bill. Across King William County's 6,534 owner-occupied homes, 16.2% pay $3,000 or more a year in property tax, 36% pay at least $2,000, and 6.9% pay under $800. Another 2.7% report paying no property tax at all, which usually means an exemption covers the whole bill.
| Annual bill | Homes | Share |
|---|---|---|
| Under $800 | 451 | 6.9% |
| $800 to $1,499 | 2,029 | 31.1% |
| $1,500 to $1,999 | 1,522 | 23.3% |
| $2,000 to $2,999 | 1,293 | 19.8% |
| $3,000 or more | 1,061 | 16.2% |
| No property tax paid | 178 | 2.7% |
Owners with a mortgage pay a median of $1,655 and owners without one pay $1,939. Here the owners without a mortgage pay more, which can happen where long-held homes sit in the higher-value parts of the county. Census table B25103.
How does the King William County property tax bill compare with local incomes?
The median property tax bill of $1,729 is about 1.8% of the median income of King William County homeowner households, $95,306 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 88.9% of King William County's occupied homes are lived in by their owners; renters pay property tax too, just folded into rent.
Have property taxes gone up in King William County?
Yes. The median bill went from $1,579 in 2015-2019 to $1,729 in 2020-2024, a 9.5% rise. Over the same span the median home value moved 54.5%, from $204,300 to $315,700. Bills rose more slowly than values, which is what assessment caps and falling millage rates do: the county is taxing a smaller share of each home's worth.
Two Census ACS 5-year periods with no survey years in common, in each period's own dollars. A change counts only if it exceeds the combined 90% margin of error.
Property tax in counties next to King William County
King William County borders 4 counties.
| County | Effective rate | Median bill | Median home value |
|---|---|---|---|
| Hanover County, VA | 0.66% | $2,627 | $400,400 |
| New Kent County, VA | 0.64% | $2,503 | $393,600 |
| King William County, VA (this county) | 0.55% | $1,729 | $315,700 |
| Caroline County, VA | 0.52% | $1,597 | $307,700 |
| King and Queen County, VA | 0.52% | $1,209 | $231,600 |
How is a home assessed in King William County?
Virginia assesses homes at 100% of market value in every county, King William County included. How Virginia assesses and reappraises homes.
Is there a homestead exemption in King William County?
No. Virginia has no general homestead exemption; relief is limited to the elderly and disabled, disabled veterans, and surviving spouses of service members and first responders killed in the line of duty. That is the Virginia rule, and it applies in King William County. Virginia's exemptions and relief programs in full.
When are property taxes due in King William County?
Set locally. Each county, city or town bills on its own schedule, commonly semiannually, and sets its own due dates and late penalties. Virginia has no statewide due date.
That is the Virginia rule. King William County issues and collects the bill, so the dates printed on your statement are the ones that bind you.
How to appeal your King William County property assessment
You contest the assessed value with the Local Board of Equalization, then circuit court. That is the Virginia rule; King William County sets the exact dates and forms. The Virginia appeal process step by step.
Virginia rules from primary state sources, reviewed September 7, 2026; sources on the Virginia page.
Work out your own numbers
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How much house can I afford?
Your income, debts and down payment against the 28/36 rule lenders actually use, with King William County's tax rate to hand.
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Mortgage calculator
Monthly payment with principal, interest, tax and insurance, plus what an extra payment saves you.
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Virginia income tax
Brackets, standard deduction and what Virginia actually taxes.
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Sales tax in King William County
The other local tax: combined state and local rate for this county.
Sources
- Median real estate taxes paid and median home value for King William County, Virginia: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.