Property tax in Carbon County, Wyoming

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Carbon County, Wyoming is $1,279 a year, which is about 0.57% of the county's median home value of $222,700. That effective rate is higher than the typical Wyoming county (0.56%) 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 Carbon County

Enter a home's market value for a ballpark at Carbon County's average effective rate of 0.57% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.

Home market value

Estimated property tax: $1,269 / year

Property tax in Carbon County at a glance

Carbon County, Wyoming property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$1,279
Median home value	$222,700
Effective tax rate	0.57%
Typical Wyoming county rate	0.56%
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 Carbon County compare in Wyoming?

Among Wyoming's 23 counties, Carbon County has the 9th highest effective property-tax rate: 8 rank higher and 14 rank lower. That is on the higher side for Wyoming. Nationally, it ranks 2394th of 3135 US counties by effective rate. See every Wyoming county ranked.

How much do homeowners in Carbon County actually pay?

The median is only the middle bill. Across Carbon County's 4,664 owner-occupied homes, 4.8% pay $3,000 or more a year in property tax, 19.5% pay at least $2,000, and 27.3% pay under $800. Another 2.4% report paying no property tax at all, which usually means an exemption covers the whole bill.

Annual property tax paid by Carbon County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	1,271	27.3%
$800 to $1,499	1,512	32.4%
$1,500 to $1,999	856	18.4%
$2,000 to $2,999	685	14.7%
$3,000 or more	226	4.8%
No property tax paid	114	2.4%

Owners with a mortgage pay a median of $1,402 and owners without one pay $1,084. Owners who have paid off a home have usually held it longer, and in states that cap how fast an existing owner's assessment can rise, long-held homes carry lower assessed values. Census table B25103.

How does the Carbon County property tax bill compare with local incomes?

The median property tax bill of $1,279 is about 1.5% of the median income of Carbon County homeowner households, $85,629 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 76.3% of Carbon 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 Carbon County?

Yes. The median bill went from $985 in 2015-2019 to $1,279 in 2020-2024, a 29.8% rise. Over the same span the median home value moved 27.3%, from $174,900 to $222,700.

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 Carbon County

Carbon County borders 8 counties, 3 of them across the state line.

Carbon County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
Fremont County, WY	0.62%	$1,671	$268,800
Sweetwater County, WY	0.61%	$1,542	$251,400
Natrona County, WY	0.6%	$1,645	$273,000
Albany County, WY	0.58%	$1,925	$333,000
Carbon County, WY (this county)	0.57%	$1,279	$222,700
Converse County, WY	0.56%	$1,630	$292,700
Moffat County, CO	0.4%	$1,146	$289,500
Routt County, CO	0.32%	$2,736	$854,700
Jackson County, CO	0.17%	$416	$239,600

How is a home assessed in Carbon County?

Wyoming assesses homes at 9.5% of market value in every county, Carbon County included. How Wyoming assesses and reappraises homes.

Is there a homestead exemption in Carbon County?

Yes, as a percentage. Wyoming exempts twenty-five percent of the fair market value of a single family home, on up to $1,000,000 of value, for owners who live there at least eight months a year. That is the Wyoming rule, and it applies in Carbon County. Wyoming's exemptions and relief programs in full.

When are property taxes due in Carbon County?

Wyoming splits the annual bill in two. The first half becomes due September 1 and is payable through November 10, and the second becomes due March 1 and is payable through May 10 of the following year. Pay the entire year by December 31 and no interest or penalty is charged. Anything unpaid after its payable date is delinquent and accrues interest at 18% a year.

Wyoming splits the bill into 2 installments. That is the Wyoming rule. Carbon County issues and collects the bill, so the dates printed on your statement are the ones that bind you.

How to appeal your Carbon County property assessment

You contest the assessed value with the County Board of Equalization, then the Wyoming State Board of Equalization. The filing deadline is typically 30 days after the county assessor sends your assessment schedule. That is the Wyoming rule; Carbon County sets the exact dates and forms. The Wyoming appeal process step by step.

Wyoming rules from primary state sources, reviewed September 7, 2026; sources on the Wyoming page.

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Carbon County, Wyoming: 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.