This table ranks all 17 ZIP codes in the Moses Lake, WA MSA by estimated 2022 population, from highest to lowest.
| # | ZIP Code | Place Name | Population (2022) |
|---|---|---|---|
| 1 | ZIP 98837 | Moses Lake | 46,959 |
| 2 | ZIP 99344 | Othello | 19,630 |
| 3 | ZIP 98848 | Quincy | 12,959 |
| 4 | ZIP 98823 | Ephrata | 12,638 |
| 5 | ZIP 99349 | Mattawa | 7,531 |
| 6 | ZIP 98851 | Soap Lake | 5,196 |
| 7 | ZIP 99357 | Royal City | 3,973 |
| 8 | ZIP 98857 | Warden | 3,545 |
| 9 | ZIP 99133 | Grand Coulee | 1,377 |
| 10 | ZIP 99115 | Coulee City | 1,224 |
| 11 | ZIP 99123 | Electric City | 852 |
| 12 | ZIP 99321 | Beverly | 851 |
| 13 | ZIP 99103 | Almira | 603 |
| 14 | ZIP 99135 | Hartline | 452 |
| 15 | ZIP 98824 | George | 231 |
| 16 | ZIP 98860 | Wilson Creek | 229 |
| 17 | ZIP 98832 | Marlin | 153 |