Polyamorie in America: A protection-related issue, for now only in selected cities

13 Oct 2026 · @Dan Apus Monoceros

On 15 September 2026, the Seattle City Council voted unanimously to add polyamory, pansexuality and asexuality to its list of protected sexual orientations. Anyone in Seattle who is disadvantaged because of a relationship with several partners can now file a complaint with the city’s Office for Civil Rights. The law takes effect in June 2027 and covers employment, housing, business licenses, public accommodations and police work. According to several media outlets, Seattle is the tenth US city with such a rule (KUOW, LGBTQ Nation).

America: The Situation

On 20 January 2025, Trump revoked his predecessor’s executive order combating discrimination based on sexual orientation and gender identity; other rollbacks followed (Faegre Drinker, Jurist, Democracy Now). What looks like an admission of failure at the national level is meeting resistance at the municipal level, where the trend runs the other way.

In 2020, Somerville, Massachusetts became the first city to introduce domestic partnerships for more than two people; Cambridge and Arlington followed in 2021. Oakland and Berkeley banned discrimination based on family and relationship structure in 2024, and Olympia and Portland followed in 2026 (Littler, Harvard Crimson).

Polyamory has no status at the federal or state level, and certainly no protection (APA Division 44). Protection emerges where individual city councils can pass it against the national trend.

The following cities have rights for polyamore relationships: Sommerville, Cambridge, Arlington, Oakland, Berkley, West Hollywood, Seattle, Portland, Olympia

Why Polyamory Needs Protection

The number of people affected is not small. Estimates for the US put around 5% of adults in a consensually non-monogamous relationship at present, and over 20% have had such an experience at some point. I lack reliable figures for Germany.

Polyamory: A Worse Image, Similar Quality

The discrimination lies in the yardstick. Terri Conley and colleagues had 1,101 people rate monogamous and non-monogamous relationships. Monogamy scored better on 20 of 22 attributes, from sexual health to closeness and trust to financial benefits (Psychology Today). Even people who live non-monogamously themselves rated monogamous relationships more favorably (PMC).

This pattern is called the halo effect: monogamy is considered better across the board, regardless of what the actual relationship looks like. The data alone argue against this.

In the Seattle council hearing, a man who has lived in a relationship of four for 26 years described his constant fear of repercussions at work (KUOW) and of losing his apartment (Axios). A 2025 survey by the organization OPEN with roughly 6,000 participants found that over 60% of respondents had experienced stigmatization at some point; 9.3% report housing discrimination and 6.7% discrimination at work (APA Division 44).

In healthcare, a Canadian interview study on pregnancy and childbirth shows that partners outside the biological parenthood are overlooked and not taken into account, and that they fear being judged by those treating them (McMaster). According to the Polyamory Legal Advocacy Coalition, only one partner can be covered under health insurance, and courts assume that parents with multiple partners offer less stability in custody disputes (PLAC). Having to constantly hide how you live also carries a health risk: APA Division 44 links this kind of stigma to an increased risk of depression and anxiety disorders.

Behind this lies a structural problem: the law is built around the two-person relationship. Seattle’s Human Rights Commission wrote that the legal framework dates from a time when only a narrow concept of family existed (Advocate).

Opposing Voices and Where the “Fine Distinction” Lies

So why aren’t alternative relationship forms pursued further? There are various reasons, for example economic or religious ones. Berkeley dropped such protection as early as 2017 out of concern about having to insure several partners of one employee (Union-Bulletin). Religious groups such as the California Family Council oppose recognition, and conservative media equate polyamory with polygamy.

But looking at what actually happened, Seattle did not change marriage law. It passed anti-discrimination protection. With such protection, there is also no reason to fear a rush of registrations. In Somerville, registration has been possible since 2020. There are 487 domestic partnerships there, 22 of them with more than two people, roughly 4.5%. Whether the new protective ordinances actually reduce discrimination remains open. A comparable protective rule for LGBTQ+ people shows declining discrimination and better well-being. Let’s hope the same for non-monogamous relationships.

Conclusion

Even though the clocks in America are currently running backwards, that doesn’t mean the whole country is following this path. Individual cities and initiatives are the ones recognizing the progress and the change of times and driving them forward.

But what is the situation in Germany and the rest of the world?

Which relationship form do you want to live in, and how do you see this development for yourself?