Property tax in Sandoval County, New Mexico

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Sandoval County, New Mexico is $2,296 a year, which is about 0.73% of the county's median home value of $313,800. That effective rate is higher than the typical New Mexico county (0.55%) 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 Sandoval County

Enter a home's market value for a ballpark at Sandoval County's average effective rate of 0.73% (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: $2,291 / year

Property tax in Sandoval County at a glance

Sandoval County, New Mexico property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$2,296
Median home value	$313,800
Effective tax rate	0.73%
Typical New Mexico county rate	0.55%
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 Sandoval County compare in New Mexico?

Among New Mexico's 33 counties, Sandoval County has the 4th highest effective property-tax rate: 3 rank higher and 29 rank lower. That places it among the most heavily taxed counties in the state. Nationally, it ranks 1801st of 3135 US counties by effective rate. See every New Mexico county ranked.

How much do homeowners in Sandoval County actually pay?

The median is only the middle bill. Across Sandoval County's 47,530 owner-occupied homes, 27.6% pay $3,000 or more a year in property tax, 51.3% pay at least $2,000, and 7.6% pay under $800. Another 11.4% report paying no property tax at all, which usually means an exemption covers the whole bill.

Annual property tax paid by Sandoval County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	3,631	7.6%
$800 to $1,499	7,028	14.8%
$1,500 to $1,999	7,064	14.9%
$2,000 to $2,999	11,250	23.7%
$3,000 or more	13,127	27.6%
No property tax paid	5,430	11.4%

Owners with a mortgage pay a median of $2,433 and owners without one pay $2,000. 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 Sandoval County property tax bill compare with local incomes?

The median property tax bill of $2,296 is about 2.5% of the median income of Sandoval County homeowner households, $92,751 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 83.5% of Sandoval 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 Sandoval County?

Yes. The median bill went from $1,837 in 2015-2019 to $2,296 in 2020-2024, a 25% rise. Over the same span the median home value moved 56.2%, from $200,900 to $313,800. 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 Sandoval County

Sandoval County borders 7 counties.

Sandoval County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
McKinley County, NM	2%	$1,574	$78,700
Bernalillo County, NM	0.9%	$2,629	$292,900
Cibola County, NM	0.8%	$1,003	$125,400
Sandoval County, NM (this county)	0.73%	$2,296	$313,800
San Juan County, NM	0.68%	$1,317	$193,800
Los Alamos County, NM	0.55%	$2,717	$495,800
Santa Fe County, NM	0.48%	$2,152	$446,300
Rio Arriba County, NM	0.42%	$1,021	$243,700

How is a home assessed in Sandoval County?

New Mexico assesses homes at 33.33% of market value in every county, Sandoval County included. How New Mexico assesses and reappraises homes.

Is there a homestead exemption in Sandoval County?

Yes, for a head of family. New Mexico's exemption takes $2,000 off taxable value, often saving $50 to $90 a year. That is the New Mexico rule, and it applies in Sandoval County. New Mexico's exemptions and relief programs in full.

When are property taxes due in Sandoval County?

County treasurers mail bills around November 1. Tax is payable in two equal installments, the first due November 10 and the second due April 10 of the following year. You get a one month grace period on each: interest starts if the first half is not paid by December 10 or the second half by May 10.

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

How to appeal your Sandoval County property assessment

You contest the assessed value with the the county valuation protests board, reached by petitioning the county assessor. The filing deadline is typically 30 days after the assessor mails your notice of valuation. That is the New Mexico rule; Sandoval County sets the exact dates and forms. The New Mexico appeal process step by step.

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

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Sandoval County, New Mexico: 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.