Can Nuisance Ordinances Have Deadly Consequences?

Bradford (2026) examines whether city nuisance ordinances increase drug overdose mortality. She analyzes county-level mortality data from Ohio and surrounding commuting zones from 1999 to 2017, combining death records with information on local nuisance ordinance adoption. Using a difference-in-differences design, she finds that nuisance ordinances increased opioid mortality by 3.38 deaths per 100,000 residents per year, a 29% increase over the pre-adoption baseline. The laws also increased cocaine and alcohol mortality. Her analysis suggests two possible mechanisms: increased housing instability through eviction and greater hesitation to call 911 during an overdose emergency.

Why This Article Was Selected for The Policy Scientist

City nuisance ordinances raise a broader policy question: regulations designed to reduce disorder can produce unintended consequences for public health, housing stability, and access to emergency services. This issue is especially timely amid persistently high overdose mortality and continuing efforts to improve rapid responses to overdoses. Bradford’s study makes an important contribution by connecting the nuisance-ordinance literature to drug mortality and examining mechanisms involving eviction and 911 hesitancy. The mortality data are extensive, covering 1999–2017, although the geographic concentration in Ohio and neighboring areas limits generalizability. The modern difference-in-differences design is a substantial strength because it supports causal inference rather than relying on conventional multivariate associations.

Full Citation and Link to Article

Bradford, A. C. (2026). City nuisance ordinances and overdose mortality. Journal of Policy Analysis and Management, 45(3), e70112. https://onlinelibrary.wiley.com/doi/10.1002/pam.70112

Central Research Question

The study asks whether municipal nuisance ordinances increase drug overdose mortality. These ordinances allow local governments to designate residential properties as nuisances following repeated incidents such as drug activity, disorderly conduct, or calls to emergency services. Property owners may then face fines or other penalties unless the alleged nuisance is abated, sometimes through eviction. The central concern is that laws intended to reduce unwanted activity and demands on police may inadvertently increase the probability that drug overdoses become fatal. Two mechanisms receive particular attention: nuisance ordinances may increase housing instability through eviction, and residents may hesitate to call 911 during an overdose because they fear that emergency-service involvement could trigger a nuisance citation or eviction.

Previous Literature

The study connects several previously distinct literatures. Research on drug policy has examined prescription drug monitoring programs, pill-mill restrictions, naloxone access, Good Samaritan laws, and other interventions intended to prevent substance misuse or reduce overdose mortality. For example, Buchmueller and Carey (2018) examine prescription drug monitoring programs, while research by Evans et al. (2019) and Rutkow et al. (2015) addresses other policy responses to opioid misuse.

A second literature concerns nuisance ordinances themselves. Desmond and Valdez (2013), studying nuisance citations in Milwaukee, found that landlords frequently responded to citations by initiating eviction proceedings, removing tenants informally, or threatening future eviction. Arnold (2019), using interviews with women subjected to nuisance-property ordinances in St. Louis, documented housing and health consequences and found that some respondents subsequently believed they could not safely call 911. Mead et al. (2018) examined nuisance ordinances across Ohio and similarly found that landlords often responded to citations through eviction.

These findings intersect with research connecting housing instability to health. Desmond and Shollenberger (2015) link eviction to poorer subsequent housing circumstances, while Bradford and Bradford (2020) find that higher local eviction rates are associated with greater drug-related mortality. Latimore and Bergstein (2017) provide additional evidence that people witnessing overdoses may hesitate to contact emergency services. Collectively, this literature provides plausible mechanisms linking nuisance ordinances to overdose mortality, but previous research had not directly estimated the broader mortality effects of these laws.

Data

The primary analysis covers Ohio and surrounding commuting zones from 1999 through 2017. Mortality information comes from the CDC National Vital Statistics System Multiple Cause of Death files. Individual deaths are aggregated to county-year observations and converted to mortality rates per 100,000 residents. Outcomes distinguish deaths involving opioids overall, natural or semi-synthetic opioids, synthetic opioids, heroin, cocaine, benzodiazepines, stimulants, and alcohol.

The principal explanatory variable identifies whether a nuisance ordinance was in effect. The Ohio policy information originates with Mead et al. (2018), supplemented with information for communities in surrounding commuting zones. Because ordinances are enacted at the city level while mortality is measured at the county level, a county is generally classified as treated after a city within the county adopts an ordinance. This geographic mismatch represents an important measurement limitation because not every county resident classified as treated necessarily resides within a municipality covered by an ordinance.

Additional data support tests of possible mechanisms. Eviction filings and completed evictions come from Princeton University’s Eviction Lab and are measured at the city-year level. Census information identifies counties with relatively high and low renter shares. Because suitable historical data on emergency calls were unavailable, 911 hesitancy cannot be observed directly. Instead, mortality records allow comparisons between deaths occurring inside versus outside residences and between people dying before versus after reaching an emergency department.

Methods

The principal identification strategy is difference-in-differences (DiD), exploiting variation in when jurisdictions adopted nuisance ordinances. Importantly, the study does not rely exclusively on the conventional two-way fixed-effects estimator. Recent methodological research by Goodman-Bacon (2021) and Callaway and Sant’Anna (2021) demonstrates that conventional DiD estimates can become biased when treatment adoption is staggered and treatment effects differ across jurisdictions or over time.

The primary specification therefore uses Gardner’s (2022) two-stage DiD estimator, designed to accommodate staggered treatment adoption and heterogeneous effects. Results are compared with conventional two-way fixed-effects, stacked DiD, and Callaway-Sant’Anna estimators. Event-study specifications examine pre-adoption trends, an important diagnostic for assessing whether adopting and comparison jurisdictions were evolving similarly before treatment.

The study also conducts extensive robustness and falsification analyses. Outcomes that should not plausibly respond to nuisance ordinances—including several major chronic diseases and accidental deaths—are used as placebo outcomes. Additional analyses alter treatment definitions, exclude potentially problematic counties, investigate geographic spillovers, address possible undercounting of opioid deaths, and examine whether results are driven by particular counties or periods of the opioid epidemic. These procedures strengthen the causal interpretation, although observational policy adoption cannot eliminate every potential source of endogeneity.

Findings/Size Effects

The principal result is substantial: nuisance ordinance adoption increases overall opioid mortality by an estimated 3.38 deaths per 100,000 residents per county-year. Relative to opioid mortality in treated jurisdictions before adoption, this represents approximately a 29% increase. Across 208 treated county-years, the estimated effect corresponds to approximately 3,805 additional opioid deaths between 1999 and 2017, about 13.7% of observed opioid deaths during the study period.

Effects vary across substances. Nuisance ordinances increase synthetic-opioid mortality by approximately 3.03 deaths per 100,000 and heroin mortality by 2.36 deaths per 100,000. No statistically significant increase appears for natural or semi-synthetic opioid deaths. Cocaine and alcohol mortality also increase, although subsequent analyses indicate that the cocaine result may largely reflect overdoses involving synthetic opioids simultaneously. The alcohol effect remains when synthetic-opioid co-involvement is excluded.

The mechanism analyses provide additional evidence. In unweighted city-level models, nuisance ordinance adoption increases completed evictions by 0.68 per 100 renter households and eviction filings by 1.46 per 100 renter households. These effects disappear in population-weighted specifications, making the eviction evidence suggestive rather than definitive.

Evidence concerning emergency-service hesitancy is also indirect but consistent with the proposed mechanism. Nuisance ordinances are associated with a 34.2% increase in overdose deaths in which individuals were dead on arrival, compared with a 22.9% increase among those who reached the hospital before dying. Similarly, overdose deaths occurring within residences increase by 34.9%, compared with 22.6% for deaths occurring outside residences.

The estimated mortality effects also vary across demographic groups. Effects are particularly pronounced among men and older residents. Some demographic composition changes occur following adoption, but these changes appear less capable of explaining the principal mortality results than housing instability or delayed emergency response.

Conclusion

The evidence indicates that nuisance ordinances can generate substantial unintended health consequences. Municipalities adopt these laws principally to address repeated calls for service, drug activity, disorder, and other behaviors associated with residential properties. Yet the results indicate that adoption increases mortality involving opioids, synthetic opioids, heroin, alcohol, and cocaine. The estimated 29% increase in overall opioid mortality is particularly consequential.

The evidence also provides plausible explanations for the mortality increase. Nuisance ordinances appear capable of increasing housing instability through eviction, although those estimates depend on model weighting. The stronger mortality effects among people dying at home or before reaching a hospital are consistent with residents delaying or avoiding emergency calls, but the absence of direct historical 911-call data prevents definitive identification of this mechanism.

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The study therefore extends research on nuisance ordinances beyond their previously documented housing and enforcement consequences to measurable mortality outcomes. Its modern difference-in-differences framework, alternative estimators, event studies, falsification outcomes, and robustness analyses provide a comparatively strong basis for causal inference. External validity remains less certain because the analysis is concentrated in Ohio and neighboring commuting zones, and treatment is sometimes measured at a broader geographic level than the municipal laws themselves. Nevertheless, the findings establish evidence that local regulations directed at residential conduct can produce spillover effects extending beyond housing and law enforcement into population health.