Colfax County, NM Property Tax: $927/yr (2026)
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The effective property tax rate in Colfax County is 0.58% of assessed home value. On a home at the county median value of $161,000, that works out to about $934 per year, or $78 per month. Colfax County is located in northern New Mexico, and is home to approximately 12,336 residents.
About Colfax County
Colfax County covers approximately 3,758.0 square miles in New Mexico. The county is home to about 12,336 residents living in roughly 9,578 housing units, of which 40.7% are owner-occupied. The median household income is $52,690, and the median home was built in 1977.
Colfax County borders Costilla County, Las Animas County, Harding County, Mora County, Taos 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 Colfax County Assessor's office to learn which exemptions apply to your property and when to file.
Colfax County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Colfax County, NM | 0.58% | $161,000 | $934 |
| New Mexico state average | 0.60% | — | $966* |
| Costilla County | 0.31% | $171,300 | $531 |
| Las Animas County | 0.24% | $214,500 | $524 |
| Harding County | 0.38% | $86,500 | $328 |
| Mora County | 0.54% | $119,900 | $642 |
| Taos County | 0.33% | $354,000 | $1,164 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Colfax County's median home value of $161,000. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Colfax County's property tax rate compare to the rest of New Mexico?
At 0.58%, Colfax County is lower than the New Mexico state average of 0.60%. On a home at the county median of $161,000, that means about $934 per year — versus $966 at the state average rate, a difference of $32 per year. Compared to the national average of 1.10%, Colfax County is below average.
What's a typical annual property tax bill in Colfax County?
For a home at the county median value of $161,000, the annual property tax in Colfax County is approximately $934 — or about $78 per month. For a home worth $241,500, expect around $1,401 per year. For a $322,000 home, approximately $1,868 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Colfax County property tax assessment?
Property assessment appeals in Colfax County are handled by the Colfax 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 Colfax 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 0.58% shown here. Contact the Colfax 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