Union County property tax
Homeowners in Union County, New Mexico typically pay about 0.70% of their home's value in property tax each year — a median bill of $859 on a median home value of $122,700.
Typical effective rate
0.70%
higher than 60% of U.S. counties
Median tax paid
$859
per year
Median home value
$122,700
In NM
#6
of 33 ranked counties
At a glance
- Effective rate 0.70% — 25% lower than the U.S. median of 0.94%, and about the New Mexico median.
- With vs. without a mortgage — median tax $933 for mortgaged homes, $626 for homes owned outright.
- State ranking — 6th highest effective rate of 33 ranked New Mexico counties; nationally it sits around the 40th percentile.
Estimate a bill for Union County
Apply this county's typical effective rate (0.70%) to a home value of your choice.
Frequently asked questions
What is the property tax rate in Union County, NM?
The typical effective property-tax rate in Union County is 0.70% of a home's value per year, based on median taxes paid ($859) divided by the median home value ($122,700) in the Census ACS 2020–2024 5-year estimates. This is a typical burden for comparison, not a statutory mill rate.
How much is property tax on a typical home in Union County?
The median owner-occupied home in Union County is valued at $122,700, and the median real estate tax paid is $859 per year. Homes with a mortgage have a median tax of $933, versus $626 for homes without one.
How does Union County compare to the rest of New Mexico?
Union County's effective rate is about the New Mexico median, ranking 6th of 33 ranked counties in the state.
Compare nearby New Mexico counties
Counties ranked closest to Union County by in-state effective rate. Open the comparison tool or see all New Mexico counties.
| In-state | County | Effective rate | Median tax |
|---|---|---|---|
| 3 | Cibola County | 0.80% | $1,003 |
| 4 | Sandoval County | 0.73% | $2,296 |
| 5 | Mora County | 0.72% | $885 |
| 7 | San Juan County | 0.68% | $1,317 |
| 8 | Doña Ana County | 0.67% | $1,480 |
| 9 | Valencia County | 0.62% | $1,374 |
Official data & resources for Union County
- Union County Census profile (data.census.gov) — housing, value and tax figures for this county.
- Table B25103 for Union County — median real estate taxes paid (the source for the tax figures above).
- Table B25077 for Union County — median home value.
- Federal forms & is property tax deductible? — IRS Pub 530, Schedule A and the SALT cap, plus your state tax agency.
Finding your exact bill
Your county or municipal assessor (sometimes called the appraisal district, property appraiser, or tax collector) sets the assessed value and the exact millage that produces your bill. Search for "[county name] [state] assessor" or "property tax" on an official .gov site.
Figures on this page are Census survey medians for the whole county (2020–2024 5-year), not an assessment of any individual property. Rates, exemptions and assessment practices vary by municipality and school district within a county.