Property Tax in Union County
via TaxByCounty
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.