Annexation Ordinances Using Direct Petition Method: M - O
- Marysville - Ordinance No. 2276
- Marysville - Ordinance No. 2283
- Marysville - Ordinance No. 2329
- Marysville - Ordinance No. 2380
- Marysville - Ordinance No. 2388
- Marysville - Ordinance No. 2401
- Mattawa - Ordinance No. 390
- Mill Creek - Ordinance No. 2000-496
- Mill Creek - Ordinance No. 2001-511
- Milton - Ordinance No. 1425
- Monroe - Ordinance No. 1199
- Moses Lake - Ordinance No. 1876
- Moses Lake - Ordinance No. 1919
- Moses Lake - Ordinance No. 1956
- Moses Lake - Ordinance No. 2014
- Moses Lake - Ordinance No. 2046
- Moses Lake - Ordinance No. 2054
- Moses Lake - Ordinance No. 2058
- Mount Vernon - Ordinance No. 2974
- Mountlake Terrace - Ordinance No. 2244
- Mountlake Terrace - Ordinance No. 2271
- Mountlake Terrace - Ordinance No. 2280
- Mountlake Terrace - Ordinance No. 2301
- Moxee - Ordinance No. 608
- Naches - Ordinance No. 526
- Napavine - Ordinance No. 291
- Oak Harbor - Ordinance No. 1181
- Oak Harbor - Ordinance No. 1197
- Oak Harbor - Ordinance No. 1217
- Oak Harbor - Ordinance No. 1260
- Odessa - Ordinance No. 548
- Okanogan - Ordinance No. 915
- Omak - Ordinance No. 1427
- Omak - Ordinance No. 1456
- Omak - Ordinance No. 1457
- Omak - Ordinance No. 1478
- Oroville - Ordinance No. 632
- Oroville - Ordinance No. 645
- Oroville - Ordinance No. 652
- Othello - Ordinance No. 1050
- Othello - Ordinance No. 1053
- Othello - Ordinance No. 1068
- Othello - Ordinance No. 1097