5 incorporated cities and unincorporated areas. The county Eviction Risk Score is held aloft by the city of Clayton (3.9) and a small number of dense urban cores. Rent-control coverage varies by city.
In 2026
Risk score
3.8
LOW
Ranked #6 of 34 NM counties
3k residents · 5 cities · 1 tracts
1976–2026 · pop-weighted from cities
Union County eviction risk score history
Min1.7Average2.7Now3.8
197619861996200620162026
Key metrics
Tenant beats landlord
36.4%
/ 100 outcomes
In court-decided eviction outcomes for Union County, NM, tenants prevail in roughly 36.4% of contested cases. A higher number means landlords face stronger tenant defenses and longer calendars.
Timeline
77d
filing → judgment
From the moment an unlawful-detainer notice is filed in Union County, NM until a money judgment is entered, a contested eviction takes about 77 days on average. Longer timelines mean more lost rent for landlords.
Cost range
$2.9–8.3k
legal + lost rent
A typical eviction in Union County, NM costs landlords $2,853 to $8,297 all-in, covering court filing fees, process-server costs, attorney time, and lost rent.
Average rent
$652
28% stretched on rent
Average gross rent in Union County, NM is $652 per month per the U.S. Census American Community Survey. 28% of renter households here spend more than 30% of pre-tax income on rent.
Renters
27.7%
of households
27.7% of occupied housing units in Union County, NM are renter-occupied. A higher renter share usually correlates with more eviction filings and a more active rental market.
Poverty
25.6%
10.3% unemp.
25.6% of Union County, NM residents live below the federal poverty line, and unemployment runs at 10.3%. Both feed the economic-stress sub-score in our Eviction Risk Score model.
Time machine
Scrub 50 years
197619861996200620162026
2026
● LIVE · today◀ REPLAY · historical
How Union County ranks in New Mexico
Lower number means more extreme, where #1 is the most
Eviction Risk Score
High
#6of 34 NM counties3.8 / 10
#6 of 34 counties in New Mexico for landlord eviction risk.
Cost of living
Low
#37of 51 states (statewide)92.2 index
New Mexico ranks #37 of 51 states on overall cost of living (7.8% cheaper than the U.S. avg).
Housing services cost
Low
#37of 51 states (statewide)73.6 index
New Mexico ranks #37 of 51 states on housing services (26.4% cheaper than the U.S. avg).
Income spent on rent
Low
#25of 34 NM counties28.1% of income
#25 of 34 counties in New Mexico on % of income spent on rent.
Union County earns an average eviction-risk score of 2.9/10 (Low) across its 5 tracked cities, placing it among the least-stressed rental markets in New Mexico eviction laws. With 32 of the state's 33 other counties scoring higher, landlords and investors who operate here face fewer systemic eviction pressures than almost anywhere else in the state. That edge comes with context: the county's total tracked population is just 3,073, average rent sits at $652, and the 27.7% renter share reflects a largely owner-occupied, small-town landscape.
The intra-county spread is narrow, running from 2.5 to 2.9, which signals that risk is reasonably consistent from one community to the next. An average rent burden of 28.1% of income is moderate, suggesting tenants are not severely stretched, though a 25.6% average poverty rate is a meaningful underwriting signal for landlords assessing rent-collection stability at the individual-property level.
The cities inside Union County
Clayton, the county seat and by far the largest city with a population of 2,753, ties for the highest risk at 2.9/10, matching the countywide average. Capulin also scores 2.9/10, though its population of 79 means the rental market there is thin. Because Clayton accounts for roughly 90% of the county's total tracked population, investors evaluating Union County are, in practice, evaluating Clayton.
Des Moines and Grenville each score 2.8/10, landing just a notch below the top tier, while Folsom, the smallest community at a population of 11, scores 2.5/10, the county's lowest-risk reading. Even across this small geographic footprint, risk is hyper-local: the difference between Folsom and Clayton may look minor on the scale, but it represents the full range of operating conditions available in the county.
State-level laws that apply here
Landlords in Union County operate under New Mexico state law, specifically NMSA § 47-8 (Uniform Owner-Resident Relations Act). For non-payment of rent, the required notice period is just 3 days. A lease-violation cure notice requires 7 days, and an end-of-term no-cause notice requires 30 days. New Mexico eviction laws does not require just cause to terminate a month-to-month tenancy, and there is no rent control or rent cap formula in effect. Landlords must provide 24 hours notice before entry. Understanding the full New Mexico eviction laws eviction process is essential before serving any notice, since procedural missteps reset the clock.
When an eviction does proceed to court, expect a court filing fee of $132 to $200, a sheriff lockout fee of $50 to $175, and attorney fees of $500 to $3,000 if counsel is retained. An uncontested case typically resolves in 21 to 45 days; a contested matter can stretch to 45 to 120 days. Reviewing New Mexico eviction costs in full before budgeting a turnover helps avoid mid-process surprises. New Mexico security deposit limits and New Mexico tenant protections are set at the state level and apply uniformly across all Union County municipalities.
With a 25.6% average poverty rate across the county, individual tenant screening remains important even in a low-risk market; the city grid above breaks scores down to the community level so landlords can calibrate their underwriting to the specific sub-market they are entering.
Eviction Lab Tracking System · statewide · live through 2026-05-01
The Princeton Eviction Lab Tracking System covers New Mexico statewide (no county-level tracker available for Union County). In the past month, 1,016 statewide filings were recorded, 0.91× the historical baseline (below baseline).
1,016Past month (state)
12,651Past 12 months
0.86×vs baseline (12 mo)
New Mexico statewide, last 36 months2023-05-01 – 2026-04-01
Notice requirement: at least three days notice (in some cases more). Filing fee: minimum filing fee of $77 (depending on the court level).
How is the Union County eviction risk score computed?
Each of the 5 cities in the county is independently scored on nine sub-factors. The county-wide 3.8/10 average reflects a population-weighted mean of those municipal scores.
Q2
Does Union County have rent control?
Rent control is determined by state law and city ordinance. New Mexico state framework applies. See the New Mexico eviction laws rent-control guide for details.
Q3
What is the political climate in Union County?
Union County voted Republican by 56.2 points in 2020.