diff --git a/doc/geocoding_functions.md b/doc/geocoding_functions.md
index 46f6e4c..f913509 100644
--- a/doc/geocoding_functions.md
+++ b/doc/geocoding_functions.md
@@ -94,7 +94,7 @@ UPDATE {tablename} SET the_geom = cdb_geocode_admin1_polygon({province_column},
 
 ## City geocoder
 
-The following functions provide a city geocoder service. It is recommended to use the more specific geocoding function -- the one that requires more parameters — in order for the result to be as accurate as possible when several cities share their name.
+The following functions provide a city geocoder service. It is recommended to use the more specific geocoding function -- the one that requires more parameters — in order for the result to be as accurate as possible when several cities share their name. If there are duplicate results for a city name, the city name with the highest population will be returned.
 
 ### cdb_geocode_namedplace_point(_city_name text_)