New Haven, Conn., Code of Ordinances ch. 12½, art. III § 12½-43

It shall be a discriminatory practice in violation of this article for the lessor or other person: (a)
To refuse to sell or rent after the making of a bona fide offer, or to refuse to negotiate for the sale or rental of, or otherwise make unavailable or deny, a dwelling to any person because of race, creed, color, religion, national origin, ancestry, sex, gender identity or expression, marital status, sexual orientation, age, lawful source of income, disability, or familial status.
(b) To discriminate against any person in the terms, conditions, or privileges of sale or rental of a dwelling or in the provision of services or facilities in connection therewith, because of race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or unlawful source of income.
(c) To make, print, or cause to be made, printed or published, any notice, statement or advertisement, with respect to the sale or rental of a dwelling that indicates any preference, limitation or discrimination based on race, creed, color, religion, national origin, ancestry, sex, gender identity or expression, marital status, age, lawful source of income, familial status, sexual orientation, disability, or an intention to make any such preference, limitation or discrimination.
(d) (1) To represent to any person because of race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or lawful source of income that any dwelling is not available for inspection, sale or rental when such dwelling is in fact so available; and
(2) It shall be a violation of this subdivision for any person to restrict or attempt to restrict the choices of any buyer or renter to purchase or rent a dwelling:
(i) To an area which is substantially populated, even if less than a majority, be persons of the same protected class as the buyer or renter;
(ii) While such person is authorized to offer for sale or rent another dwelling which meets the housing criteria as expressed by the buyer or renter to such person; and
(iii) Such other dwelling is in an area which is not substantially populated by persons of the same protected class as the buyer or renter. As used in this subdivision, "area" means municipality, neighborhood or other geographic subdivision which may include an apartment or condominium complex; and "protected class" means race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or lawful source of income.
(e) To coerce, intimidate, threaten or interfere with any person in the exercise or enjoyment of or on account of his/her having aided or encouraged any other person in the exercise or enjoyment of, any right granted or protected by G.S. section 46a-64c, as amended by Public Act No. 92-257, section 2.
(f) For profit, to induce or attempt to induce any person to sell or rent any dwelling by representation regarding the entry or prospective entry into the neighborhood of a person or persons of a particular race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or lawful source of income.
(g) For any person or other entity engaging in residential real estate-related transactions to discriminate against any person in making available such a transaction, or in terms or conditions of such a transaction, because of race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or lawful source of income.
(h) To deny any person access to or membership or participation in any multiple-listing service, real estate brokers' organization or other service, organization, or facility relating to the business of selling or renting dwellings, or to discriminate against him/her in the terms or conditions of such access, membership or participation, on account of race, color, religion, creed, sex, gender identity or expression, marital status, sexual orientation, age, familial status, national origin, ancestry, disability, or lawful source of income.
(i) To raise rents because of, or in anticipation of, any effect of this article.
(j) To evict or attempt to evict any person if a motivating factor for the eviction is the occupancy or potential occupancy of a minor child or children.