Union County Property Taxes
Union County, New Mexico
Effective Tax Rate
0.00%
25.6% below state avgMedian Annual Tax
$0
$65/mo escrow
Estimate Your Tax
Annual Tax
$0
Monthly
$0
Eff. Rate
0.57%
At a Glance
Median Home Value
$135,900
State avg ▼ $181,648
Tax w/ Mortgage/yr
$933
$78/mo escrow
Tax w/o Mortgage/yr
$545
$45/mo
State Tax Rate Rank
#21
of 33 counties (1 = lowest)
Similar tax rates
Data Story
About Property Taxes in Union County, New Mexico
Union County taxes are well below national average
Union County's effective tax rate of 0.571% sits below the national median of 0.79%, placing it in the bottom third of U.S. counties. With a median property tax of just $776 on homes valued at $135,900, Union residents pay about 71% less than the national median of $2,690.
Near average for New Mexico
Union County's 0.571% rate runs slightly below New Mexico's state average of 0.595%, placing it in the middle tier of state counties. The median tax bill of $776 is roughly 26% below the state average of $1,043, reflecting both a slightly-below-average rate and rural property values.
Union taxes similar to rural county peers
Union's 0.571% rate closely matches San Miguel (0.558%), Sierra (0.548%), and Socorro (0.553%), grouping these rural counties as moderate-tax jurisdictions. All substantially undercut Sandoval (0.760%) and provide meaningful savings versus higher-value markets.
Budget approximately $776 annually
On Union's median home value of $135,900, the effective tax rate of 0.571% results in about $776 per year in property taxes. Homeowners with mortgages typically pay $933 annually, while those without mortgages pay closer to $545.
Check your assessment against market value
Union County homeowners should verify their assessments match current market values, as some properties may be valued higher than warranted. Filing a free appeal with the county assessor is straightforward and could lower your annual tax bill.
How Union County Compares
Median Annual Property Tax
Union County
0.57%
Effective rate
New Mexico Avg
0.57%
Effective rate
National Avg
0.91%
Effective rate
Frequently Asked Questions
What is the property tax rate in Union County, New Mexico?
How much are property taxes in Union County?
How does Union County compare to the New Mexico average?
What is the median home value in Union County, New Mexico?
Is Union County a low property tax area in New Mexico?
How does Union County rank for property taxes in New Mexico?
Counties with Similar Tax Rates
Nearby Counties
Other Counties in New Mexico
Data updated: March 2026
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates. Effective tax rate is calculated as median property tax divided by median home value.