Homeowners in Union County, New Mexico paid a median $859 a year in property tax on a median home worth $122,700, an effective rate of about 0.70% (Census 2020–2024).
0.70%New Mexico statewide · US 0.94%
How Union County compares
Effective rate (median tax ÷ median value)
Median tax paid per year
Tax on a home here
At the local 0.70% effective rate
| Home value | Estimated yearly tax | Per month |
|---|---|---|
| $150,000 | $1,050 | $88 |
| $250,000 | $1,750 | $146 |
| $350,000 | $2,450 | $204 |
| $500,000 | $3,500 | $292 |
Cities and towns in Union County
Buying a home in Union County? 2026 loan limits
Related
- New Mexico property tax by countyall counties ranked
- San Juan County, NM0.68% effective
- Mora County, NM0.72% effective
- Doña Ana County, NM0.67% effective
- Sandoval County, NM0.73% effective
- Valencia County, NM0.62% effective
Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25103 (median real estate taxes paid), B25077 (median home value), B25003, B25088, B19013 and B01003. These are 2020–2024 medians reported by owner-occupants, not 2026 tax bills or official mill rates. The effective rate here is median tax ÷ median home value. Actual bills depend on assessed value, exemptions (homestead, senior, veteran) and local levies. Check with your county assessor or treasurer. Not tax advice.
Frequently asked questions
What is the property tax rate in Union County, New Mexico?
Homeowners in Union County, New Mexico paid a median $859 a year in property tax on a median home worth $122,700, an effective rate of about 0.70% (Census 2020–2024).
How much is property tax on a $300,000 home in Union County?
About $2,100 a year ($175 a month) at the 0.70% median effective rate. Your bill depends on assessed value and exemptions.
Is Union County property tax high?
It ranks #28 lowest of 33 New Mexico counties. The state median effective rate is 0.70% and the US rate is 0.94%.
Where do I pay property tax in Union County?
Bills are issued and collected by the Union County treasurer or tax collector, based on values set by the county assessor.