每个州都有过。湾区不光老钱区，mountainview这种90年代才发家的也一样。

1938年，mountainview某小区要求住户不能是非白人，除非是佣人。

1954年，新建小区可以是混合种族的，但这么做的会被mountainview官员反对，而且拿不到贷款。曾经有mixed race couple让白人丈夫去谈贷款，条款都谈好了，需要妻子一起来签字的时候，loan agent发现妻子不是白人，把合同撕了。

虽然种族条款1948年就不能执行了，1968年正式无效，2022年加州才通过法律要求把种族条款去掉。而很多老的法律文件没有电子化，依然没有被删掉。

In 1938, a restrictive covenant for Sierra Avenue in Mountain View states that “sold property shall not be occupied by any one not of the Caucasian Race, except in the capacity of a servant.”

By 1954, suburban housing development is flourishing in Mountain View, but Black Americans are excluded from the opportunity to become homeowners. Builders who do try to develop integrated communities are met with opposition from Mountain View officials and cannot obtain federally insured financing.

As of July 1, 2022, California state law requires counties to purge their records of racist restrictive covenants. Until this happens, real estate agents must disclose these covenants to prospective buyers. Most pre-1948 deeds in Santa Clara County are not searchable in digital archives, though, and no mechanism exists to fix these deeds.

https://www.mv-voice.com/news/2022/07/28/taking-a-closer-look-at-how-a-history-of-racism-shaped-mountain-views-housing/#:~:text=Kahan's%20presentation%20connected%20the%20key,Japanese%20ancestry%20to%20leave%20their