California has 58 counties, and each imposes a transfer tax.  Here are the links to each:

• 
  

  County	Website Address
  Alameda	www.acgov.org
  Alpine	www.alpinecountyca.gov
  Amador	www.amadorgov.org
  Butte	www.buttecounty.net
  Calaveras	www.co.calaveras.ca.us
  Colusa	www.colusacountyclerk.com
  Contra Costa	www.co.contra-costa.ca.us
  Del Norte	www.co.del-norte.ca.us
  El Dorado	www.edcgov.us
  Fresno	www.co.fresno.ca.us
  Glenn	www.countyofglenn.net
  Humboldt	www.co.humboldt.ca.us
  Imperial	www.imperialcounty.org
  Inyo	www.inyocounty.us
  Kern	www.kerncounty.com
  Kings	www.countyofkingsca.gov
  Lake	www.co.lake.ca.us
  Lassen	co.lassen.ca.us
  Los Angeles	www.lacounty.gov
  Madera	www.maderacounty.com
  Marin	www.co.marin.ca.us
  Mariposa	www.mariposacounty.org
  Mendocino	www.mendocinocounty.gov
  Merced	www.co.merced.ca.us
  Modoc	http://www.modoccounty.us
  Mono	www.monocounty.ca.gov
  Monterey	www.countyofmonterey.gov
  Napa	www.countyofnapa.org
  Nevada	www.nevadacountyca.gov
  Orange	www.ocgov.com
  Placer	www.placer.ca.gov
  Plumas	www.countyofplumas.com
  Riverside	www.rivco.org
  Sacramento	www.saccounty.net
  San Benito	www.sanbenitocountyca.gov
  San Bernardino	www.sbcounty.gov/main/default.aspx
  San Diego	www.sandiegocounty.gov
  San Francisco	sfgov.org
  San Joaquin	www.sjgov.org
  San Luis Obispo	www.co.slo.ca.us
  San Mateo	http://www.smcgov.org/
  Santa Barbara	www.countyofsb.org
  Santa Clara	www.santaclaracounty.gov
  Santa Cruz	www.co.santa-cruz.ca.us
  Shasta	www.shastacounty.gov
  Sierra	www.sierracountynewmexico.info
  Siskiyou	www.co.siskiyou.ca.us
  Sonoma	www.sonoma-county.org
  Stanislaus	www.stancounty.com
  Sutter	www.suttercounty.org
  Tehama	www.co.tehama.ca.us
  Trinity	www.trinitycounty.org
  Tulare	www.tularecounty.ca.gov
  Tuolumne	www.tuolumnecounty.ca.gov
  Ventura	www.countyofventura.org
  Yolo	www.yolocounty.org
  Yuba	www.co.yuba.ca.us