La Puente, CA
 Layman's version:
Up to 20 chickens allowed for each 10,000 square feet of lot area in residential zones.
 The Urban Chicken ordinance on the books:
Link to municipal code online: Chapter 10.68 Animal and Poultry Restrictions
Text of ordinance:
10.68.050 Keeping of poultry, rabbits and small animals restricted.
No person shall keep or maintain more than a combined total of twenty poultry and/or rabbits and small animals for each ten thousand square feet of lot area in the residential zones. Poultry or small animals under three months of age and not exceeding twenty-five in number shall not be considered in computing the number of poultry or small animals on the premises. (Ord. 1 § 9116.15(e), added by Ord. 126; March 8, 1960)