Combined city and county municipal corporations: State Constitution Art. 11 § 16 (Amendment 58).

Determining population

generally: Chapter 43.62 RCW.

of annexed territory: RCW 35.13.260.

First-class cities, generally: Chapter 35.22 RCW.

Metropolitan municipal corporations: Chapter 35.58 RCW.

Second-class cities, generally: Chapter 35.23 RCW.

Towns, generally: Chapter 35.27 RCW.