785
Approximately 700,000 people live in unincorporated areas governed by Clark County , and another 465,000 live in incorporated cities such as North Las Vegas , Henderson and Boulder City .
 location: Clark County; location: North Las Vegas; location: Henderson; location: Boulder City
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: Clark County; location: North Las Vegas; location: Henderson; location: Boulder City