Socorro County, NM Property Tax: $792/yr (2026)
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The effective property tax rate in Socorro County is 0.55% of assessed home value. On a home at the county median value of $143,200, that works out to about $788 per year, or $66 per month. Socorro County is located in central New Mexico, and is home to approximately 16,308 residents.
About Socorro County
Socorro County covers approximately 6,646.4 square miles in New Mexico. The county is home to about 16,308 residents living in roughly 7,642 housing units, of which 50.2% are owner-occupied. The median household income is $47,556, and the median home was built in 1980.
Socorro County borders Catron County, Cibola County, Lincoln County, Sierra County, Torrance County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in New Mexico
Property taxes in New Mexico are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in New Mexico offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Socorro County Assessor's office to learn which exemptions apply to your property and when to file.
Socorro County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Socorro County, NM | 0.55% | $143,200 | $788 |
| New Mexico state average | 0.60% | — | $859* |
| Catron County | 0.34% | $171,800 | $583 |
| Cibola County | 0.82% | $120,000 | $983 |
| Lincoln County | 0.54% | $212,200 | $1,143 |
| Sierra County | 0.55% | $144,800 | $793 |
| Torrance County | 0.47% | $145,100 | $677 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Socorro County's median home value of $143,200. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Socorro County's property tax rate compare to the rest of New Mexico?
At 0.55%, Socorro County is lower than the New Mexico state average of 0.60%. On a home at the county median of $143,200, that means about $788 per year — versus $859 at the state average rate, a difference of $71 per year. Compared to the national average of 1.10%, Socorro County is below average.
What's a typical annual property tax bill in Socorro County?
For a home at the county median value of $143,200, the annual property tax in Socorro County is approximately $788 — or about $66 per month. For a home worth $214,800, expect around $1,181 per year. For a $286,400 home, approximately $1,575 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Socorro County property tax assessment?
Property assessment appeals in Socorro County are handled by the Socorro County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Socorro County?
New Mexico counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 0.55% shown here. Contact the Socorro County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File